摘要:
An injection pump, especially for motor vehicles with a control rack and a centrifugal governor, in which the control rack is adjustable by way of a first vacuum box in dependence on the ignition key position and in which, in the stop position of the ignition key, vacuum is applied to the first vacuum box and the control rack is transferred into its turn-off position; a second temperature-dependent vacuum box adapted to be connected with vacuum is provided, whereby an end position corresponding to the full load position is adapted to be determined for the control rack by way of this second vacuum box above a predetermined engine limit temperature.
摘要:
An altitude compensation valve assembly comprising a housing structure having a bellows and a check valve unit. The check valve unit is supported for movement between a closed position, where communication between a fluid under pressure introduced into an inlet port of the valve assembly is discommunicated from the atmosphere, and an opened position where such communication is established. The check valve unit is normally biased towards the closed position and is moved towards the opened position when the pressure introduced through the inlet port exceeds a predetermined value determined in consideration with change in a altitude in which the valve assembly is operated to compensate for reduction in pressure resulting from change in altitude.
摘要:
A control arrangement for the injection quantity of an internal combustion engine in which an adjusting member for the adjustment of the feed quantity of a fuel injection pump is adapted to be adjusted by a longitudinally displaceable diaphragm bolt of a pneumatic measuring mechanism by way of a control lever, whereby the diaphragm of the pneumatic measuring mechanism is acted upon on the one side by atmospheric pressure and is exposed on the other side thereof to the pressure in a vacuum chamber connected by way of a vacuum line with a part of the suction pipe of the internal combustion engine where the vacuum in the suction pipe is being picked-up particularly in a Venturi pipe section thereof; the control lever is thereby pivotally supported with its end opposite the adjusting member of the injection pump on a part operatively connected with the engine output control member and is adapted to be adjusted about this point of pivotal support by the diaphragm-bolt engaging in the central area of the control lever; additionally, the control lever is adjustable within the pivot plane thereof by the part actuatable by the output control member of the internal combustion engine; additionally, the flow cross section of the Venturi pipe section and therewith also of the suction pipe of the internal combustion engine is not adapted to be throttled so that the cross section remains essentially constant.
摘要:
An adjustable fuel plate device for a diesel fuel pump is disclosed. The adjustable fuel plate device can include a fuel plate to limit travel of a governor arm of a diesel fuel pump for a diesel engine. The adjustable fuel plate device can also include a translation mechanism to move the fuel plate relative to the governor arm. Additionally, the adjustable fuel plate device can include a control system coupleable to the translation mechanism to control movement of the fuel plate during operation of the engine.
摘要:
A pneumatic-internal combustion (IC) engine based power management system with improved energy efficiency for automobile application. More particularly, the pneumatic IC engine based power management system comprises a compressor, a pressure vessel, a pneumatic motor and related control mechanisms to provide energy on demand and reduce environmental pollution. The compressor is driven by the IC engine during low power demand by the vehicle. The lightweight pressure vessel wrapped with high strength metal wire and/or fibers provide impact resistance adequate to store compressed air at rated pressure. For low/no load condition of engine or compressor, the IC engine will shut off rather than idling to save fuel. The stored compressed air drives the air motor that powers the vehicle's initial motion and then starts the IC engine to provide continuous power. A controller monitors the power demand and actuates different system components accordingly through sensors. The system also supports accessories such as air conditioning, heater etc. and a wheel-rim system for inflation maintenance and easy change over of tyres.
摘要:
In a Diesel engine with a Bosch-type fuel pump or the like having a control lever which determines the fuel injection quantity, idling speed is controlled by a movable stopper which abuts the control lever to place a lower limit on fuel injection quantity during idling. A control unit derives a target idling speed value according to engine temperature, electrical load, etc. and controls the pneumatic actuator of the stopper in accordance with the difference between actual engine speed during idling and the target idling speed. When the engine is not idling, the pneumatic actuator may be controlled to act as a dashpot, damping the return of the control lever to its idling position. Electromagnetically controlled valves respond to the control unit by providing atmospheric pressure or negative pressure to the pneumatic actuator. An auxiliary valve is provided for bypassing a defective atmospheric pressure supplying valve.
摘要:
A distributor type fuel injection pump has an accumulator. When an internal combustion engine is in low-speed rotation or in low-load operation, the accumulator accumulates part of the fuel pressurized within a fuel compression chamber, thereby lowering the fuel injection rate. Also, the fuel injection pump is provided with compensator which operates simultaneously with the accumulator. While the injection rate is lowered by operation of the accumulator, the compensator extends the injection period to compensate for the reduction of injection quantity attributed to reduction of the injection rate.