Valve control device with magnetic valve for internal combustion

Details Valve control device with magnetic valve for internal combustion Valve control device with magnetic valve for internal combustion

1989-02-17

1989-12-26

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9016, F01L 112, F01L 124, F02D 1302

Patent

active

048890847

ABSTRACT:
A hydraulic valve control device for internal combustion engines having a magnetic valve for controlling the opening and closing time of an inlet or outlet valve in which the fluid pressed out of the stroke transmission chamber by the engine valve springs is stored in a reservoir chamber integrated with the magnetic valve; the reservoir chamber, by displacing the valve member backward, functions as a reservoir piston in the opening direction. A spring acting upon the valve member in the closing direction of the magnetic valve presses the fluid back into the stroke transmission chamber, which now is expanding one again. The magnetic valve communicates with the stroke transmission chamber through the shortest possible fluid conduit.

REFERENCES:
patent: 4278233 (1981-07-01), Zurner et al.
patent: 4466390 (1984-08-01), Babitzka et al.
patent: 4671221 (1987-06-01), Geringer et al.
patent: 4674451 (1987-06-01), Rembold et al.
patent: 4696265 (1987-09-01), Nohira
patent: 4765288 (1988-08-01), Linder et al.

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