Start locking circuit in operating tool with internal combustion engine

FIELD: engines and pumps.

SUBSTANCE: start locking circuit is designed for an operating tool with an internal combustion engine (20). The internal combustion engine (20) contains a cylinder (21) with a combustion chamber (25) and a control unit (60) to provide the engine operation. When the engine is running the combustion chamber (25) is supplied with combustion air and fuel, wherein the air-fuel mixture in the combustion chamber (25) is ignited with an ignition plug (26). A mode selection switch is designed for actuating the internal combustion engine (20) and has an operating position and a starting position for air-fuel enrichment. The braking unit (19) for locking is coupled with the tool operating body. When in the operating mode, the braking unit (19) for locking locks the operating body with a brake, and when in a standby condition, it unlocks the operating body without actuating the braking system. An operation transmitter is connected with the braking unit (19) for locking to detect the operating mode of the locking braking unit. There is a position sensor in the mode selection switch. The status signal for the operation transmitter (19) of the locking braking unit and the status signal for the position sensor of the mode selection switch are interconnected in such a way that the control unit (60) stops the engine operation in all cases when the mode selection switch is in the starting position, and the locking braking unit (19) is in its standby condition with the braking system off.

EFFECT: avoidance of the engine start with rich mixture without switching the locking braking unit on, as the locking braking unit locks and brakes the tool operating body.

12 cl, 5 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE two-stroke engine rpm control means and processes. Particularly, it covers ignition dwell angle control relative to TDC. At preset engine rpm, ignition dwell angle can be adjusted step-by-step. Alternation between two ignition dwell angles can be performed in one or several steps. In case engine rpm exceeds the threshold magnitude, dwell angle can be adjusted.

EFFECT: efficient control over dwell angle, engine higher reliability and longer life.

17 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in propulsion engineering. Programmed destruction part (7) is designed to shut off emergent purging channel (6) extending through diesel combustion chamber (1) of outer wall (3). Combustion chamber (1) is arranged inside the cylinder and confined by outer side of piston (3) reciprocating in cylinder to make combustion chamber outer wall (3). Emergent purging channel (6) is made in outer wall (3). Said programmed destruction part (7) is designed to protect high-output direct-flow purge two-stroke cross-head diesel engines against possible damages caused by high overpressure (py) in combustion chamber (1) brought about by diesel faults. Said programmed destruction part (7) has the point of programmed destruction at outer wall (3) to be broken at pressure (ps) required for destruction of said point. Said pressure (ps) lower that overpressure (py) wherefrom engine faults start and above maximum tolerable pressure (pn) in combustion chamber under normal operating conditions. Said programmed destruction pressure (ps) at whatever temperature (T) in temperature range (T0-T1) in combustion chamber (1) is higher than threshold pressure (pu) and lower that destruction pressure (po). Said threshold pressure (pu) is higher than maximum tolerable pressure under normal operating pressure (pn) in combustion chamber. Destruction pressure (po) is lower the lowest overpressure (py) whereat diesel faults originate. Threshold pressure (pu) is higher by least pressure (Δpu) than maximum tolerable vale under normal operating conditions (pn) in combustion chamber and/or destruction pressure (po) is lower by at least (Δpo) than the lowest overpressure (py) whereat diesel faults originate. Threshold pressure (pu) is always 10% higher than maximum pressure (pn) in combustion chamber (1) under normal operating conditions, preferably, higher than 180 bar at destruction pressure (po) being lower than 270 bar. Programmed destruction point is composed of a ring around programmed destruction plate edge with thinner wall, unlike outer wall, and bent relative to combustion chamber. Programmed destruction part (7) is made integral with programmed destruction plate. Invention covers also the diesel engine, two-stroke cross-head diesel part and method of diesel faults prevention.

EFFECT: lower probability of diesel breakage.

37 cl, 7 dwg

The invention relates to internal combustion engines and electrical equipment intended to improve the accuracy limit of the engine speed

The invention relates to internal combustion engines and electrical equipment intended for use in controlled ignition systems, turn off when the engine reaches a predetermined speed

Carburettor unit // 2553481

FIELD: engines and pumps.

SUBSTANCE: invention relates to appliances for carburettors used for drives of hand-held tools. Proposed unit comprises carburettor (9) with inlet channel section (10). Said section accommodates throttle element and air choke element. First coupling element is fixed with throttle element while second coupling element is fixed with air choke element. In compliance with this invention, first and second coupling elements make a locking device which impedes closure of air choke element at idle throttle element.

EFFECT: simplified design, inhibited closure of air choke at idle throttle element.

19 cl, 22 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry and can be used in vehicles incorporating electromechanical transmission wherein specific ICE fuel consumption is minimised owing to application of power accumulators. Proposed device comprises controlled fuel feed component incorporating ACS with feedback channels communicated with transmission elements and controlled electric power accumulator and flywheel-type power accumulator engaged with ICE shaft by controlled electromagnetic coupling. Control system control interaction of both accumulators in motion when traction motor consumes electric power and in braking when traction motor running in generator mode outputs power to drive system.

EFFECT: control system recovers power in turns at electric and flywheel power accumulators.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: procedure for control over power source of tree crop harvester consists in direct or indirect actuating one or more working devices and/or manipulator devices by means a power source. The devices are installed in the tree crop harvester and are controlled with control facilities. The control facilities generate a control command influencing state of functioning to one or more working devices or manipulator devices. The control command is repeatedly transmitted to the power source. The said repeated analogue control command facilitates change of power source functioning. Change is executed before operation of the working device and/or operating devices so, that the repeated control command influences at least one parametre of power source control at least for a short time advancing successive power source loading.

EFFECT: raised efficiency of hydro-static power transmission.

11 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. Proposed method of diesel (1) control consists in generating automatic oscillation of fuel feed device (7). On a sensor (6) signal at load decrease to magnitude smaller than 30% of rated value the fuel feed device position pickup (7) is used to feed signal from speed automatic controller (10) of control unit (13) and frequency generator via current sinusoidal oscillations of amplitude and frequency oscillator (12). Said oscillator (12) is timed by crankshaft turn angle transducer (5) with its angular position. Invention covers also the diesel control at low feed and minimum stable rpm.

EFFECT: lower minimum stable rpm at load and idling.

2 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE application in various machines incorporating an electromechanical transmission. The proposed method of stabilising the ICE minimum specific fuel rate by automatically adjusting the ICE operating conditions via a feedback circuit connected to the electromechanical transmission components consists in presetting the engine shaft rpm corresponding to the minimum specific fuel consumption, measuring the said shaft rpm variation at varying outer moment of resistance, comparing the resulted value with the preset one, amplifying the difference signal and feeding it to the AC generator excitation current control circuit input to make the aforesaid moment to comply with that developed by ICE. Note that at the same time, the electric power accumulator output voltage is measured and compared with two preset levels. Given any departure from the aforesaid preset levels, a signal is generated to cut off the ICE in case the voltage exceeds the preset level, or to cut in the ICE in case the measured voltage is lower than the preset one that allows operating the ICE in intermittent service.

EFFECT: stabilisation of minimum specific fuel rate and optimisation of ICE operating conditions at varying electromechanical transmission engine loads, simpler ICE design.

2 cl, 2 dwg

FIELD: mechanical engineering; engines.

SUBSTANCE: invention relates to devices for disconnection of engines in case of emergency situations and to compression brakes of engine trucks. Device for emergency shutting down of internal combustion engine and deceleration of vehicle by engine contains member for closing section of intake pipe line, closing member position setter and compressed air source. Closing member position setter is made in form of crankshaft speed limit pickup, oil pressure drop pickup, cooling liquid temperature rise pickup, and engine retarder control pushbutton. Intake pipeline section closing member is made in form of spool series-connected by pneumatic cylinder, in upper part of which calibrated hole communicating with atmosphere is made with fuel-feed valve connected with fuel-feed main line and with each of above-indicated pickups through check valve, and signal lamp and with engineering retarder control pushbutton and is connected in series with compressed air source. Pickups and engine retarder control pushbutton are connected in parallel.

EFFECT: improved reliability and efficiency of engine in operation, enlarged functional capabilities.

1 dwg

The invention relates to engine and can be used to control the internal combustion engine with raspredelennym sequential fuel injection and spark ignition

The invention relates to engine, in particular to a device for the automatic translation engine to idle

The invention relates to automatic control of engines, in particular to the means for automatic protection of diesel engines in case of emergency situations at the time of start

The invention relates to engine, in particular to control systems for internal combustion engines

The invention relates to the field of engineering, namely, internal combustion engines, assembled from individual modules

FIELD: mechanical engineering; engines.

SUBSTANCE: invention relates to devices for disconnection of engines in case of emergency situations and to compression brakes of engine trucks. Device for emergency shutting down of internal combustion engine and deceleration of vehicle by engine contains member for closing section of intake pipe line, closing member position setter and compressed air source. Closing member position setter is made in form of crankshaft speed limit pickup, oil pressure drop pickup, cooling liquid temperature rise pickup, and engine retarder control pushbutton. Intake pipeline section closing member is made in form of spool series-connected by pneumatic cylinder, in upper part of which calibrated hole communicating with atmosphere is made with fuel-feed valve connected with fuel-feed main line and with each of above-indicated pickups through check valve, and signal lamp and with engineering retarder control pushbutton and is connected in series with compressed air source. Pickups and engine retarder control pushbutton are connected in parallel.

EFFECT: improved reliability and efficiency of engine in operation, enlarged functional capabilities.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ICE application in various machines incorporating an electromechanical transmission. The proposed method of stabilising the ICE minimum specific fuel rate by automatically adjusting the ICE operating conditions via a feedback circuit connected to the electromechanical transmission components consists in presetting the engine shaft rpm corresponding to the minimum specific fuel consumption, measuring the said shaft rpm variation at varying outer moment of resistance, comparing the resulted value with the preset one, amplifying the difference signal and feeding it to the AC generator excitation current control circuit input to make the aforesaid moment to comply with that developed by ICE. Note that at the same time, the electric power accumulator output voltage is measured and compared with two preset levels. Given any departure from the aforesaid preset levels, a signal is generated to cut off the ICE in case the voltage exceeds the preset level, or to cut in the ICE in case the measured voltage is lower than the preset one that allows operating the ICE in intermittent service.

EFFECT: stabilisation of minimum specific fuel rate and optimisation of ICE operating conditions at varying electromechanical transmission engine loads, simpler ICE design.

2 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to automotive industry. Proposed method of diesel (1) control consists in generating automatic oscillation of fuel feed device (7). On a sensor (6) signal at load decrease to magnitude smaller than 30% of rated value the fuel feed device position pickup (7) is used to feed signal from speed automatic controller (10) of control unit (13) and frequency generator via current sinusoidal oscillations of amplitude and frequency oscillator (12). Said oscillator (12) is timed by crankshaft turn angle transducer (5) with its angular position. Invention covers also the diesel control at low feed and minimum stable rpm.

EFFECT: lower minimum stable rpm at load and idling.

2 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: claimed system comprises the device (100) to decreased the carbon emissions and carbon credit control server. The device (100) consists of the fuel data control module (110), idling limitation module (120), carbon dioxide emission limitation calculation module (130) and carbon credits conversion module (140). Note here that module (110) can define the fed fuel grade and volume and generate the data on measured volume of fed fuel. Besides, said module (110) can define the volume of consumed fuel, generate, store and control the data on fuel volume measurement. Module (120) can minimize the fuel feed into the engine for fuel consumption limitation at idling without fuel control pedal depression for a preset time interval. Besides, it normalizes the fuel feed at depression of said pedal. Module (130) can generate the data on reduction of the carbon dioxide emission. Module (140) can read off the data on reduction of carbon emission, index the history of economy value conversion and convert the carbon emissions to obtain the carbon credit. Carbon credit control serves can get the ID data on the user, the vehicle ID data, the data on carbon credit authenticity confirmation and the data on carbon emission reduction from appropriate device connected via data communication network. Besides, said server can generate and transfer the data to the carbon elision reduction device. This invention discloses the emitted carbon dioxide volume reduction in the vehicle and conversion of emissions into carbon credit.

EFFECT: decreased ejection of greenhouse gases of vehicles.

11 cl, 8 dwg

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