Internal-combustion engines – Charge forming device – With fuel pump
Patent
1997-02-13
1999-10-26
Miller, Carl S.
Internal-combustion engines
Charge forming device
With fuel pump
123 9012, F02M 3704, F01L 902
Patent
active
059709561
ABSTRACT:
A control module which controls camless hydraulically driven intake and exhaust valves and an hydraulically driven fuel injector of an internal combustion engine. The module contains a valve assembly to control the intake valve, a valve assembly to control the exhaust valve and a valve assembly to control the fuel injector. The valve assemblies preferably each contain a pair of solenoid actuated two-way spool valves. The solenoids are actuated by digital pulses provided by an electronic assembly within the module. The solenoid actuated spool valves control the flow of a hydraulic fluid to and from the fuel injector and the intake and exhaust valves. The hydraulic fluid opens and closes the intake and exhaust valves. The hydraulic fluid also actuates the fuel injector to eject a fuel into a combustion chamber of the engine. The electronic assembly of each module can be connected to a main microprocessor which provides commands to each assembly. Each electronic assembly processes the command, feedback signals from the hydraulically actuated devices and historical data to insure a desired operation of the fuel injector and intake and exhaust valves.
REFERENCES:
patent: 4919102 (1990-04-01), Iwabuchi
patent: 5170755 (1992-12-01), Kano
patent: 5209453 (1993-05-01), Aota
patent: 5224683 (1993-07-01), Richeson
patent: 5237968 (1993-08-01), Miller
patent: 5237976 (1993-08-01), Lawrence
patent: 5248123 (1993-09-01), Richeson
patent: 5339777 (1994-08-01), Cannon
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