DEVICE FOR PRELIMINARY AND MAIN INJECTION FOR SELF-IGNITION INTERNAL COMBUSTION ENGINE Russian patent published in 1994 - IPC

FIELD: manufacture of engines. SUBSTANCE: device has fuel injection pump, injector, first fuel feed pipe line with spring-loaded check valve and second fuel feed pipe line with spring-loaded check valve. First distributing device is mounted at pump outlet and is connected with the first and second fuel feed pipe lines and with first bypass valve. The second distributing device is brought in communication with inlet of injector, first and second fuel feed pipe lines and with second bypass valve. Preliminary and main injection of fuel into engine is ensured due to equal length of fuel feed pipe lines. EFFECT: enhanced efficiency. 4 cl, 4 dwg