| 摘要 |
FIELD: engine engineering. SUBSTANCE: at the initial moment, fuel is supplied to the space controlled in accordance with engine conditions, accumulated, and displaced to the above-piston space of the pump in the delivery zone. The device has plunger pump with cam drive 2, plunger space 6 that consists of plunger 3 received in sleeve 4 with filling ports 5, plunger space 6, which is in communication with nozzles through delivery valve and passage 7 as well as with space 10 of a storage through passageway 9. The volume of the storage varies with the engine conditions due to varying the position of stop 14. The stop is made up as a three-dimensional cam of a given profile that is set in motion by amplifier 16. The space of the amplifier is controlled by actuator 18 of the controller. The cam additionally rotates due to its connection with drive 2. As a result, fuel is withdrawn from the storage and returned to the above-plunger space at the end of delivering stroke. EFFECT: improved accuracy. |
