Device to protect the tank engine from water hammer
(57) Abstract:The invention relates to armored technique, in particular to a device for the supply of air to the tank engine. The technical result is the reliability of the protection. The inventive transition the engine Bay made a hole, through which the adapter is installed the sensor the presence of water having an electrical connection through the amplifier mechanism stop engine light and sound alarms. 1 Il. The invention relates to the field of armored vehicles, in particular to the device power supply system air tank engine.The known device: system supply of air to the engine tank. 434 /see the Object 434. Technical description and operating instructions. The second book); the scientific research Institute of Information, 1974. S. 282-284/; system clean the tank about. 219 /see the Object 219. Technical description and operating instructions. The second book. M , Voenizdat 1979, S. 163-165/; system air supply tank T-62 /Guide material and operation of the T-62 /Guide material and operation of the T-62 tank. M, Voenizdat. 1968, S. 282-283/.These devices represent the FDS is eh. A significant drawback of the above structures is the inability to delay water entering the engine scuba driving or for other reasons /crossing mountain rivers, rainfall, violation of service technologies and so on/. This leads to dangerous malfunction and accidents tank engines.Of the analogues studied as a prototype individual system of air cleaning tank about. 219, (see "Object 219 Technical description and operating instructions". The second book. M, Voenizdat, S. 163-165) containing air intake louvers, housing, transition compartment with flange and pipe collecting dust.In a combat situation and conditions of use of tanks in peacetime, the main type of fording tank groups is crossing under water. When the tank is in a submerged state for various reasons (combat damage, depressurization of the machine through the fault of the personnel and so on ) are often cases of water ingress into the tank. As for underwater driving the air intake for the engine is carried out directly from the internal volume, the water can get into the air cleaning systems. Unobstructed ingress VM image, the existing system of air cleaning do not protect the motor from water damage, which is a significant disadvantage.The objective of the proposed technical solutions to protect the motor from water hammer when the water inside the tank.This task is achieved by the fact that in the device to protect the tank engine from water hammer, containing air intake louvers, housing, transition compartment with flange and pipe collecting dust, optionally in the transition compartment made a hole, through which the adapter is installed the sensor the presence of water having an electrical connection through the amplifier mechanism stop engine light and sound alarms.The proposed device is illustrated by a drawing.The device includes a housing 1, a transition compartment 2, the batteries of cyclones 3, the nozzles suction dust 4, a sensor 5, the mechanism for stopping the engine 6, the amplifier 7, the bracket 8, the electric light bulb 9, the audio signal 10, the flange 11, the intake louvers 12, technological hole 13, the adapter 14.The proposed device is as follows.a) In the absence of water in the transmission.Untreated air is drawn works the same compartment 2 enters the engine. The sensor 5 is always dry and the signal at the output of amplifier 7 is missing. The electromagnet mechanism for stopping the motor 6 is deenergized, the tank engine works.b) If water in the tank.Water with untreated air enters the battery of cyclones 3 and, being heavier than air, immediately settles to the bottom of the transition compartment 2 and fills the sensor 5 before the level reaches the height of the collar flange 11 When the water touches the sensor 5 varies its resistance in the direction of decreasing, i.e., an electric signal circuit: sensor 5 to the amplifier 7. The amplifier 7 amplifies the signal and feeds the electromagnet mechanism stopping the engine 6, which kills the engine. Because the engine is suppressed before it rises above the water level in the transition compartment 2 clamp transition flange, the water will not have time to get into the engine and thus the engine is protected from water hammer.The proposed system of air cleaning tank will protect the motor from water hammer when the water inside the tank for various reasons.The simplicity of the device and the use of commercially available parts, assemblies and devices will allow you to easily and quickly the STV to protect the tank engine from water hammer, contains intake louvers, housing, transition compartment with flange and pipe collecting dust, characterized in that in the transition compartment made a hole, through which the adapter is installed the sensor the presence of water having an electrical connection through the amplifier mechanism stop engine light and sound alarms.
FIELD: transport engineering; amphibian vehicles.
SUBSTANCE: proposed vehicle has trimaran water displacement body, wheeled propulsive device and water propulsor. Two pressure chambers with fans are installed in bow of body. Surface of body bottom part is provided with bend having two slot-like holes connected with pressure chambers to let out air jets created by fans and forming air cushion in under-bottom space. Wheeled propulsive device is of rolling type and it has individual drive from geared motors. Wheels of propulsive device are made in form of cylindrical housing with flanges on outer surfaces of which round-shape cross slots are milled in number corresponding to number of support and rest flexible members of rim secured by pins in holes of flanges for turning through angle of roll out to form, together with wheel rim and inner engagement of support-and-drive device of vehicle, mechanism with three degrees of freedom implementing rolling system with negative friction providing translational movement of vehicle owing to upward-forward (backward-up-ward) displacement of center of masses. Support-and-drive device can be furnished with covers interconnected by studs. End of upper stud can be made in form of cylinder fitted into extensible grip installed in upper part of vehicle body on its side to change mode of operation of wheel. Water propulsor can be made in form of paddle wheels installed on vertical posts for vertical displacement and containing cylindrical housing fitted in bearings on axle and paddles of rectangular shape or paddles with bevels to build additional traction force and increase efficiency when moving in water or negotiating bogged terrains.
EFFECT: improved operating characteristics of amphibian vehicle.
3 cl, 6 dwg
FIELD: armored equipment, in particular, armored caterpillar vehicles.
SUBSTANCE: the vehicle is provided with folding water displacement tanks, whose spaces communicate with the inner space of the hull, sections of hinged flaps-pontoons, hinge-joined along the hull on the sides and that can in the non-operating position be packed up on the left-hand and right-hand flaps of the hull from the top, built in the rear sections of the flaps-pontoons on the sides of water - motion propellers of the "packed propeller" type with a drive from the power plant, that can in the inoperating position be packed up in the recesses in the upper rear part of the hull and be hinged together with the rest sections of the flaps-pontoons, hydrofoil in the nose section of the hull. A 12.7-mm machine gun with a circular rotation is installed on the hull roof with a forward shift. The vehicle has a mass up to 5.5 tons.
EFFECT: enhanced speed and stability of motion afloat.
FIELD: transport engineering.
SUBSTANCE: invention can be used for creating amphibian with open seat and common drive for simultaneous or in-turn operation of ground and water propulsion drives. Proposed amphibian vehicle with open seat is furnished with drive engine to operate, either in turn of simultaneously, ground propulsion or water propulsion drive made in form of jet drive by means of two independent clutches. Ground propulsion drive is made as all-wheel-drive. Drive engine is installed between ground propulsion axles under seat. Front and/or rear wheels are made for turning opposite to direction of vehicle movement when moving over water. According to proposed method, ground propulsion drive is engaged at water movement, and front and/or rear wheels are set into rotation opposite to direction of movement. At movement over water control is effected by means of rotary reactive nozzle and by control of front wheels.
EFFECT: improved operating characteristics of amphibian vehicle.
8 cl, 2 dwg
FIELD: transport engineering; amphibians on pneumatic wheels.
SUBSTANCE: proposed vehicle has hull with smooth bottom and pneumatic wheels with drive and treads. Tires of pneumatic wheels are furnished with water-gripping treads. Skis are installed at adjustable angle of incidence under smooth bottom behind wheels at a distance from wheels. Skis are made adjustable in height through ski clearance and they have width not less than thickness of wheels. Ends of skis are truncated upwards, and redans are made before wheel drive axles.
EFFECT: possibility of moving over water at higher speed without considerable increase in engine power rating.
FIELD: transport engineering.
SUBSTANCE: proposed steering gear of amphibious vehicle has levers arranged in control cabin at working place of driver, and control tie-rods coupled with ground and water-propelled units. Proposed gear is furnished with turning mode selector arranged between said levers and control tie-rods. Turning mode selector is made for changing to control side gearbox distributors when moving over ground and to control rudders of water-propelled units and transmission of increased control force when moving over water. Change-over is provided through summing lever installed on axle under floor of control cabin, traction-and-lever mechanism furnished with hydraulic booster and made for converting translation of tie-rods into rotation of telescopic propeller shaft, and through mechanism to convert rotation of telescopic propeller shaft into translation of cross steering tie-rod. Steering tie-rod is coupled with inner blades of rudders of left-hand and right-hand water-propelled units. Turning mode selector can be made in form of roller clutches with rods coupled by link and installed for axial displacement by means of two-position link with fixing in operating positions by ball stop. Making of telescopic propeller shaft hydraulic system of rudder booster of water-propelled unit and mechanism for converting rotation of telescopic propeller shaft into translation of cross steering tie-rod is shown.
EFFECT: simplified design, improved reliability and operating characteristics of steering gear with possibility of control by levers both when moving over ground and over water.
5 cl, 14 dwg
SUBSTANCE: invention can be used in designing ramp and propulsion and steering gear and their hydraulic systems. Novelty in proposed water craft is that it is furnished with streamlined carrying frame for fastening devices of propulsion and steering complex installed in hull aft part and formed by two pairs of rigid longitudinal beams hinge secured by inner ends of aft sheet of hull in zone located under loading side coupled by flexible cross beams in each pair and support bar between pairs. Hydraulic heads of propulsors are hinge-mounted on outer ends of each pair of longitudinal beams, being secured on said beams to form additional cross tie between beams. Carrying frame is furnished with power hydraulic cylinders connected with hydraulic system and installed to control position of heads and loading side by turning carrying frame in aft sheet hinge joints. Body of each is provided with upper roller support, being rolling support for each hinged loading side at its opening, and lower platform being rigid base interacting with ground at resting of hinged loading side on head body in loading position of loading side. Novelty in hydraulic system of watercraft is that it is furnished, in additional to propulsor control hydraulic cylinders, with hydraulic cylinders for setting ramps, changing thrust vector, fixing loading side and locking carrying frame. Each hydraulic cylinder, including propulsor position control hydraulic cylinders, are supplied through parallel hydraulic lines connected with main line, with electric control in each line. Invention contains description of design peculiarities of each line providing required modes of operation of watercraft.
EFFECT: improved performance of watercraft and creating of hydraulic system providing required mode of operation of watercraft.
9 cl, 11 dwg
FIELD: shipbuilding; designing amphibians.
SUBSTANCE: proposed amphibian has hull including deck and bottom; located under hull are pneumatic bottles and elastic protective shock-absorbing bottom in form of skin made from strips of material possessing high abrading resistance which are laid transversely overlapping each other. Amphibian is provided with motor plant and control member. Bottom skin extends as far as upper portion of hull; it is secured at clearance between sides and skin due to projection of extreme pneumatic bottles beyond surface of bottom. Skin strips are secured by means of rope lacing on the outside of amphibian perimeter. In case of availability of fender guards on sides, rope lacing may be made by means of lacing eyes. It is good practice to build bottom of two parts: upper and lower with clearance between them which is filled with elastic deformation material. Pneumatic bottles located between bottom and skin may be assembled from components of different diameters. Extreme bottles may have similar diameters of greater magnitude. Diameter of remaining intermediate pneumatic bottles may be lesser as compared with diameter of extreme bottles.
EFFECT: simplified construction of amphibian; enhanced protection; reduced mass; enhanced strength; increased running speed; enhanced maneuverability and economical efficiency.
4 cl, 1 dwg
FIELD: amphibian aircraft control systems.
SUBSTANCE: proposed system includes water touchdown sensor, unit of amphibian aircraft motion parameter sensors and computer for forming elevator automatic deflection signal. Control system includes optimal pitch angle setter and unit of amphibian aircraft motion parameter sensors includes sensor of speed made good through the water and present pitch angle sensor. Computer includes preset pitch angle stabilization unit and smooth connection unit.
EFFECT: improved safety characteristics; enhanced seaworthiness.
FIELD: transport engineering; amphibians.
SUBSTANCE: invention relates to amphibian vehicles, particularly, to post of hydraulic systems suspension. According to invention, vehicle has at least one wheel shifted out from vehicle body to support vehicle when it is used on the ground and retracted for use on water. Vehicle is furnished additionally with hydraulic cylinder containing hydraulic fluid, piston installed for movement inside cylinder and dividing the cylinder into first and second chambers, device to connected piston with suspension lever mechanism connected with wheel, first two-position valve designed to control fluid flow between first and second chambers at least on section of working stroke of piston, and second two-position valve connected only with one of first and second chambers. When first valve is open, and second valve is closed, post provides functions of suspension and/or damping of wheel vibrations. When first valve is closed and second valve is open, post serves as drive to move wheel between extended and retracted positions.
EFFECT: provision of retraction and extension of wheel through distance exceeding that required for normal riding.
13 cl, 11 dwg
FIELD: transport engineering; amphibian vehicle power train.
SUBSTANCE: proposed power includes engine with crankshaft, clutch or fluid coupling and transmission installed in line with engine crankshaft. Transmission has input shaft set into rotation from flywheel. Moreover power train contains additionally power takeoff unit designed to drive power takeoff shaft which is made for transmission of power to propulsion set intended for moving vehicle over water. Power takeoff unit has drive device secured on end of crankshaft on which flywheel is mounted. Drive device is made for transmission of power to power takeoff shaft.
EFFECT: improved layout of power train.
19 cl, 8 dwg