Hydrodynamic brake. RU patent 2513966.
 Hydromechanical transmission for track machine / 2500939Hydromechanical transmission includes a mechanical part, a hydraulic part, and a power and control system. Hydraulic part includes a hydraulic transformer with a turbine shaft, pump and turbine wheels, which is located after the inlet shaft. Mechanical part of hydromechanical transmission is equipped with a transmission gear located after the hydraulic transformer. The transmission gear is equipped with a reverse switching coupling. A turbine shaft of the transmission gear is rigidly attached to the turbine wheel of the hydraulic transformer. Mechanical part of hydromechanical transmission is also equipped with power takeoff shafts. The power and control system is provided in its turn with automatic control units and a pump for feeding of the hydraulic transformer and the transmission gear. Besides, hydromechanical transmission is equipped with a three-stage transmission gear. The latter includes the first friction shaft with a multidisc friction coupling of the first stage, which is installed on it, and the second friction shaft with two multidisc friction couplings of the second and the third stages respectively, which are installed on it. Gears are rigidly put on the turbine shaft of the transmission gear and transfer torque moment to friction shafts. Hydraulic transformer is provided with an interlocking friction coupling installed between pump and turbine wheels. |
 Building vehicle / 2390679Vehicle consists of motor, of hydraulic pump, of running hydro-motor, of running wheel, of adjustment block, of vehicle speed measurement block. The adjustment block is designed to operate under mode of reduced slipping in the range of low speed, when speed of the vehicle is less or equal to specified speed. This is designed to reduce maximal speed of motor rotation, when speed of the vehicle decreases. |
 Automatic device for control of hydraulic transformer / 2318149Automatic device for control of hydraulic transformer comprises friction clutch interposed between pump and turbine shafts and is connected with the actuating cylinder that is connected with the make-up pump through the distributor with electromagnetic control. The electric circuit of the distributor has movable contacts that are controlled by the centrifugal controllers mounted on the pump and turbine shafts of the hydraulic transformer. In addition, the automatic control device has device responsive to the change in the torque and mounted on the shaft of the drive of the pump wheel. The device is made of split shaft whose faces are provided with flanges with wedge-shaped grooves that receive expanding members and two housings with contacts mounted on the parts of the split shaft on the radial thrust bearings. The housings are compressed with springs having preliminary tension. The contacts mounted on the parts of the split shaft are used for sending a signal to the electric circuit depending on the torque and regime of operation of the hydraulic transformer thus providing the control of the hydraulic transformer. |
 Electromobile / 2513888Electromobile consists of a body, chassis with suspension elements, accumulator batteries, control mechanisms, a direct-current motor, a hydraulic motor. The electric motor shaft is connected to an impeller pump. The hydraulic motor is connected to a driving axle of the electromobile. The hydraulic motor contains a cylindrical body. The body is divided by an internal partition with central opening and sealing elements into two chambers. The chambers have inlet and outlet connections covered by the front and rear covers respectively. The common shaft is inserted into the body. In each chamber there is a rotor mounted at the shaft. Each rotor contains discs with central openings. Each disc in the direct-rotating chamber has a channel made as a semicircle with rectangular cross-section. Channels in discs of both chambers are faced by their open part towards the front cover. The channels of the subsequent disc in both chambers are shifted per 90 degrees in regard to the previous disc. |
 Rotary hydraulic machine / 2513057Invention relates to positive-displacement hydraulic machines with rotary working tools and can be applied in pumps and engines. Proposed machine comprises housing 1, stationary round ring gear 2 with inner gearing, round sun gear 3 with outer gearing, two floating pinions 4 engaged with said ring and sun gears, eccentric offset from ring gear 2 axis by distance equal to eccentric eccentricity, fixed end covers 5 and system of channels 7 and 8 for fluid feed and discharge, respectively. Ring and sun gears 2 and 3 have identical number of teeth. Sun gear 3 is rigidly engaged with rotary eccentric. |
 Adjustable gear-type pump / 2511848Invention relates to power engineering, and namely to volumetric hydraulic machines of adjustable capacity. An adjustable gear-type pump of external engagement with axial movement of one of pump gears 5 includes a pair of end bandages 6 and 7 with internal teeth arranged in cavities of pump gears 4 and 5, and contactless seals 13 and 14. Seals 13 and 14 are gear-type and fixed on end faces of gears 4 and 5 located inside bandages 6 and 7. Teeth of seals 13 and 14 are arranged in cavities of internal teeth of bandages 6 and 7. Their modules, gaps and number of teeth are made as per certain expressions. |
 Rotary machine / 2505680Proposed machine comprises cylindrical housing 1 accommodating two blades dividing said housing into four closed chambers and synchronisation mechanism composed by shaft 9 with solid spider offset from rotational axes of said blades. Spring-loaded shafts 10 with rollers 12 at their ends are fitted through holes in said blades. Discs 11 made integral with said shafts are arranged at the centre of said shafts. Attachment of shafts 10 with rollers 12 in contact with spider is executed by fitting the latter at two supports in blades. Discs 11 are shaped to square prisms with rounded vertices of rectangular faces whereat needle bearings are set and locked against axial shifts. Two split rings are fitted in grooves of said faces on both sides of the prism. Two covers 15 are arranged to prevent radial displacement and shaped similarly to square prism and locked against axial displacement by split rings fitted in the grooves of spring-loaded shaft 10. |
 Double-staged rotary compressor / 2501978Double-staged compressor 100, which is a double-staged rotary compressor with internal high pressure, includes a cover 19 of a low pressure stage, which closes an outlet hole 16 of the low pressure stage and forms inside an outlet space 20 of the low pressure stage. The compressor 100 is made with an intermediate channel 51 in a compression mechanism 3, and this channel connects the outlet space 20 of the low pressure stage and a compression chamber 35 of the high pressure stage. The compressor 100 is equipped with a relief mechanism in the cover 19 of the low pressure stage. The relief mechanism opens, when the load is less than the pre-determined load, and at the same time it connects the outlet space 20 of the low pressure stage and the space 53, in which the outlet pressure is maintained. |
 Gear hydraulic unit / 2499911Gear hydraulic unit includes gears, teeth 2 of which are made of thin-wall plates and located in a chamber formed with a housing and side discs. Cavities are located on end surfaces of discs in suction and discharge zones. Thin-wall plates are made from elastic material and each tooth 2 of gears is equipped as to height with cone-shaped slot 3. Slot 13 is located in central part of tooth 2. Vertexes of slots 13 are directed towards rotation axis of each of the gears. Conjugation lines of cavities and side discs have curved shape. Width of teeth 2 of gears from their pitch line towards heads owing to availability of slots 13 is higher than width of tooth 2 root. |
 Screw pump bearing assembly / 2499160Screw pump bearing assembly comprises screw pump drive shaft 2, sealed chamber 1 and axial bearing 3. Screw pump drive shaft 5 has crossed grooves made at its ends. Sealed chamber 1 is equipped with piston 4. Axial bearing 3 represents a multiple-row bearing. |
 Multistage vane pump / 2495282Multistage vane pump consists of stages fitted on common shaft. Pump every stage comprises rotor 5 fitted to displace axially on the shaft, stator 4, working chamber arranged between said rotor and stator, separation plates 6 displacing in grooves in centerline plane, lower cover 16 with inlets 21 and upper cover 17 with outlets 22. Rotor 5 is shaped to a cam. Stator 4 is composed of two concentric bushes and bottom 11 to make a circular clearance. Grooves 13 and 14 are made in inner bush and bottom 11. Separation plates 6 are engaged via sync element 7. Inlets 21 and 22 outlets in stage covers 16, 17 are arranged opposite its working chambers on different sides of separation plates 6. Ends of adjacent stage covers are coupled to make circular chamber communicated with circular clearance of previous stage. |
 Device for prevention of compressor wet travel / 2494319Device for prevention of compressor wet travel includes horizontal suction pipe 1 of the compressor, low-frequency ultrasonic generator 2, ultraviolet emission sensor 3 and switching device 5. Outside on pipe 1 there installed is generator of electromagnetic oscillations of ultrahigh frequency 6. To generator 6 there connected is emitter of electromagnetic oscillations of ultrahigh frequency 7, which is located inside horizontal suction pipe. |
 Rotary-vane machine / 2494259Rotary-vane machine has fixed housing 1, in which there is more than one internal cylindrical bore 2, which form working chambers of the machine, with working medium supply and discharge openings interconnected with pressure and drain main lines respectively. Adjacent bores 2 of housing 1 are made eccentrically and/or coaxially to each other. In cylindrical rotor 5 there is more than one cavity 10 with longitudinal radial shaped slots. Each of cavities 10 of cylindrical rotor 5 is combined with its corresponding internal cylindrical bore 2 of fixed housing 1. Eye lugs of vanes are arranged inside cavities 10 of rotor 5 and installed on axes 11 coaxial to axes of each of internal cylindrical bores 2 of fixed housing 1. Axes 11 are combined and made in their turn in the form of a single bell crank, the axes of which are located in relation to adjacent parts of the bell crank coaxially to axes of each of internal cylindrical bores 2 of fixed housing 1. |
 Automobile cooling circuit with pump and exhaust brake / 2347085Invention is related to automobile cooling circuit, which is characterised by the following criteria: cooling medium, in particular, water or water mixture; pump for supply of cooling medium with outlet for cooling medium; exhaust brake that comprises middle ring, working fluid of which is cooling medium; switching valve installed upstream exhaust brake, and bypass section to bypass exhaust brake, so that exhaust brake starts and stops relative to cooling circuit; at that pump for supply of cooling medium along with the flow direction is installed upstream exhaust brake so that in operating exhaust brake pump pumps cooling medium in exhaust brake, and if exhaust brake is switched off, pump pumps cooling medium along bypass section past exhaust brake. Automobile cooling circuit, according to invention, differ by the following criterion: total hydrodynamic resistance from discharge of pump for supply of cooling medium to middle ring of exhaust brake, when exhaust brake is operating, is less than total hydrodynamic resistance of cooling circuit, which is overcome by pump for supply of cooling medium in non-braking mode. |
 Hydraulic brake / 2341700Hydraulic brake comprises housing accommodating cylindrical rotor fitted on shaft running in plain bearings. Rotor outer surface features blind, preferably semi-circular, holes, its edges being furnished with blade helical screen communicating with suction and pressure chambers via inlet and outlet branch pipes. Plain bearings are lubed by pumped medium fed from pressure chamber via housing holes to the R.H. bearing and discharged into said blade helical screen and L.H. bearing, drain being arranged via shaft bore into suction chamber. The housing accommodates hydraulic thrust bearing forming, along with the rotor surface, an end face slit. Note that there are radial slit between the housing and rotor and a chamber arranged between the said radial and end face slits. The housing inner part accommodates a pack of throttling washers communicating said suction and pressure chambers. |
 Method of braking under high rotary speeds by automatic gearbox with hydrodynamic torque converter / 2498129For braking purpose an output shaft of automatic gearbox is connected to a turbine shaft of hydrodynamic torque converter. The external crown (16) of turbine gear under disconnected multidisk brake (11) of reverse gear (10) is slown down or stopped. |
 Automatic gearbox with drive side, hydrodynamic torque converter and drive side and method of braking at high rpm / 2497031Automatic gearbox 1 comprises+ drive side 3, hydrodynamic torque converter 2 and drive side 6. Gearbox 1 has power train flow via said converter 2, mechanical power flows there around and combined power flows. Driven side 6 incorporates one planetary train 7. Besides, it incorporates brake 18 to stop the converter turbine. |
 Method to control vehicle speed and/or control speed by brake-decelerator / 2398691Invention relates to the method of controlling speed of automobile incorporating brake-decelerator. Proposed method comprises reducing or preventing overspeed relative to preset speed entered in memory device using brake-decelerator. Said brake-decelerator cuts in prior to reaching said preset speed so that braking force developed by brake-decelerator reduces or minimises automobile acceleration to preset memorised speed. |
 Method to adjust braking characteristic of vehicle brake-decelerator / 2384436First multi- or single-parametre braking characteristic is saved in vehicle memory. Note that said characteristic represents the dependence of braking moment on control effect and has several reference points to allow varying the ratio between control effects and braking moment via separate displacements. Then, acceptance test bench is used to compare, for every brake-decelerator and at every preset point of aforesaid characteristic, actual braking moment is compared with preset one. Now, reference points, their positions being varied in steps, are upped or downed depending upon actual value position, i.e. in or out of tolerable range. |
 Method to correlate true characteristic curve of hydrodynamic component with predetermined preset characteristic curve in final acceptance of hydrodynamic component / 2377149Invention relates to machine building. Proposed method consists in that rear-write-store device connected to hydrodynamic component memorises characteristics curve describing desired mode of hydrodynamic component or required field of characteristics. Every working point is correlated with required control effect that serves to establish actual true characteristic curve, selected from operating parametres describing hydrodynamic component separate states, and is compared with preset required characteristic curve or field of characteristics for every working point. If required control effect for appropriate working point falls beyond preset range of tolerable magnitudes, it is subjected to readjustment for actual preset magnitude to be taken for a new preset magnitude to be entered into memory as a required control effect. |
 Braking device / 2372226Invention is related to the field of motor industry, in particular to braking devices. Braking device comprises rotor, stator, fan wheel and coupling. During operation in braking mode as supplied or joined working fluid is established, braking torque is sent from rotor to stator. Fan wheel, by means of activation and deactivation of coupling, may be engaged into a driving joint rotor and be disengaged from it. Fan wheel is arranged and installed so that in engaged driving connection to rotor it supplies cooling air to braking device. Coupling is installed and loaded with working medium so that supply or connection and drain or connection of working fluid automatically activates and deactivates coupling. |
FIELD: machine building.
SUBSTANCE: hydrodynamic brake comprises case, two diametrically opposite spring-loaded displacers, covers and cam fitted on central drive shaft. Case has cylindrical working chamber to accommodate concentrically and tangentially the cylindrical rotor rigidly fitted on said central drive shaft to make crescent-shaped chambers. Rated thickness of rotor and displacers complies with the depth of cylindrical working chamber. Besides, said case has two diametrically opposite chambers abutting on cylindrical working chambers wherein displacer shafts run. Said shaft ate equipped with pushers articulated with said cam. Rotor features oval shape in plan. Rated thicknesses of cylindrical rotor and displacer are equal. Depth of opposed chambers equals double rated thickness of the rotor.
EFFECT: simple and reliable design with wide range of adjustments.
11 dwg
The invention relates to the mechanical engineering and may be used as a hydraulic brakes with adjustable resistance to rotation on transport and in structure of weights.
Known for hydraulic transmission of hydrodynamic type that contains the torque Converter with a circle circulation concluded between the outer and inner tori installed sequentially shoulder of the pump, brake, turbine, reactor and the second brake wheels, roller freewheel, the clutch interlock pump and turbine wheels, mechanical brake, input and the output of hydroline, the input and output shafts. In the field of internal Torah is an additional circulation, hydraulically connected with the main range of circulation, one half of which is placed in the brake wheel, the other - in the pump wheel. In each of them have flat blades are rigidly connected respectively with brake and pumping wheels (see RF patent №2227233).
The disadvantage of this technical solution is its structural complexity.
The closest to the proposed technical solution is the hydrodynamic brake containing building with completed it cylindrical working chamber, which on to the wall of the working chamber cylindrical rotor fixed on the Central drive shaft and forms in the working chamber sickle cavity, two diametrically opposed located spring-loaded displacer, installed with the possibility of rotation axis and made in the form of curvilinear prism, formed by two intersecting cylindrical surfaces, the intersection of which form two ribs displacer, of which one is working, the cover, covering the working chamber with the end, the nominal thickness of the rotor and displacers corresponds to the depth of cylindrical working chamber (see RF patent №2241141).
The disadvantage of this technical solution is structural complexity and lack range of adjustment of brake torque.
The technical problem solved by the invention, is the creation of hydrodynamic brake simple and reliable construction with large range of regulation of brake torque.
To resolve this technical issue, it is proposed hydrodynamic brake containing building with completed it cylindrical working chamber, which are concentric and on to the wall of the working chamber cylindrical rotor fixed on the Central drive shaft and forms in the working chamber sickle cavity, two diametrically opposed located spring-loaded displacer, installed with the possibility of rotation axis and made in the form of curvilinear prism, formed by two intersecting cylindrical surfaces, the intersection of which form two ribs displacer, of which one is working, the cover, covering the working chamber with the end, the nominal thickness rotor and displacers equal and correspond to the depth of cylindrical working chamber, fixed on the Central drive shaft Cam, the body is made two diametrically opposite located adjacent to the cylindrical working chamber cavity, the depth of which is double nominal thickness of the rotor in the cavities are installed with the possibility of rotation axis of suspension (s) that have driven longitudinal axis displacers, the axis of suspension (s) equipped with thrusters, which are kinematically connected with the Cam, the rotor in the plan is executed oval.
Other known technical solutions of similar purpose with a similar set of essential features when searching for scientific and technical literature and patent documents by the applicant is not found. The set of essential features of the claimed hydrodynamic brake is not clear from the studied art, has significant differences from the one considered analogues. Therefore, the Complainant considers that the claimed hydrodynamic brake meets the criterion of "novelty and inventive step. Hydrodynamic brake can be made known to the equipment and used in various devices with mechanical rotating elements as the brakes of the vehicle or trainer with adjustable resistance to rotation. So he meets the criterion of "industrial applicability".
Main technical features and benefits of the proposed technical solution described in the preferred embodiment. The scope of protection of an invention is not limited to described by example, and includes various options in accordance with the General concept. In particular, the use of the screw-nut" to offset crowding along its axis is only one of many possible design solutions to make the move.
The invention is illustrated by drawings, which shows an example of the complete hydrodynamic brake in accordance with the invention.
Figure 1-3 shows a General view and device hydrodynamic brakes, 4 - 5 - hydrodynamic brake in free spins (braking torque is created), the cover and the cover removed, figure 6-7 - hydrodynamic brake in a state of partial freezes on Fig-9 - hydrodynamic brake in a state of maximum braking figure 10-11 additionally explained the work of hydrodynamic brake.
The figures indicated: building 1, 2 cap, cap 3, cylindrical, made of oval in the plan, the rotor 4, Cam 5-axis 6 shutter, the bearing axis 6 7 shutter 8, which is connected splined connection to the axis 6 can travel shutter 8 axis 6, spring 9, pressing the pusher axis 6 8 shutter to the fist 5, sickle-shaped cavity 10, 11 - the h open sickle cavity 10, working edge 12 shutter 8, screw 13, nut 14 fork CA, Central shaft 15, Cam 5 rigidly connected to the rotor 4.
Cylindrical, made of oval in the plan, the rotor 4, rigidly fixed on the Central shaft 15 in cylindrical working chamber housing 1 posted on the wall of the working chamber and forms with her two sickle cavity 10. All free cylindrical volume of the working chamber housing 1 and two diametrically opposed located cavities, adjacent to the cylindrical working chamber housing 1, which is installed with the possibility of rotation in bearings 7 axis 6 gates 8, 6 axes are installed with the possibility of moving along the axis 6 closures 8, completely filled with liquid. The rotor 4 and Cam 5 rigidly fixed on the Central shaft 15. Pusher axis 6 8 shutter is pressed by a spring 9 to the front surface of the Cam 5. The profile of the Cam 5 during the rotation of a Central shaft with 15 rotor 4 provides back-rotational motion axis 6 8 shutter shutter 8, working edge shutter 8 precisely repeats the profile of the end surface of the rotor 4. The rotation of the screw 13 moves nut 14 forklift us and being in engagement with nut 14 shutter 8 spline connection with the axis 6 8 shutter progressive, not preventing them from swinging motion. Roller Cam interacting with the Cam 5, spring-loaded in the direction of the Cam 5 by 9 spring that provides precise repetition work rib 12 8 shutter profile end surface of the rotor 4. Cam 5 and axis 6 shutter 8 the part of it that spring 9 presses to the fist 5, located between the cover 2 and 3 plug.
Works hydrodynamic brake in three modes.
1. Hydrodynamic brake does not create braking torque (full disinhibition).
The rotation of the screw 13 nut 14 fork CA shifts the shutter 8 axis 6 beyond the end of rotor profile 4. The h 11 open cavity and maximum width of the front surface of the rotor 4. Liquid at rotation meets on its path obstacles, braking torque on the rotor 4 is generated.
2. Hydrodynamic brake creates a braking torque.
The rotation of the screw 13 nut with a fork condition 14 moves the shutter 8 axis 6 to partial overlap his face-profile end of rotor profile 4. The value of open h 11 cavity smaller than the width end surface of the rotor 4. The fluid flow of inventory to gate 8, in volume after the shutter 8, creates braking torque on the rotor 4. The braking torque is determined by the amount of overlap face profiles shutter 8 and rotor 4.
3. Hydrodynamic brake is fully locked (locked).
The rotation of the screw 13 nut with a fork condition 14 moves the shutter 8 axis 6 to complete overlap end profile shutter 8 end of rotor profile 4. When you try to rotate the rotor 4 the liquid can flow from inventory to gate 8, in volume after the shutter 8, thus completely blocking the rotation of the rotor 4.
The choice of the design dimensions of the device, you can change the flow of control range braking torque on the Central shaft 15.
Hydrodynamic brake, contains a body with made it cylindrical working chamber, which are concentric and on to the wall of the working chamber the cylindrical rotor fixed on the Central drive shaft and forms in the working chamber sickle cavity, two diametrically opposed located spring-loaded displacer, installed with the possibility of rotation axis and made in the form of curvilinear prism formed by two intersecting cylindrical surfaces, the intersection of which form two ribs displacer, of which one is working, the cover, covering the working chamber with the end, the nominal thickness of the rotor and displacers equal and correspond to the depth of cylindrical working chamber, characterized in that it introduced fixed on the Central drive shaft Cam, the body is made two diametrically opposite located adjacent to the cylindrical working chamber cavity, the depth of which is double the nominal thickness of the rotor, installed with cavities the possibility of rotation axis of suspension (s) that have driven longitudinal axis displacers, the axis of suspension (s) equipped with thrusters, which are kinematically connected with the Cam, the rotor in the plan is executed oval.