System for controlling the supercharging pressure of a turbochar

Details System for controlling the supercharging pressure of a turbochar System for controlling the supercharging pressure of a turbochar

1983-12-15

1985-10-22

Koczo, Michael

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

F02B 3712

Patent

active

045480389

ABSTRACT:
A system for correcting the supercharging pressure of an internal combustion engine having a supercharging device. A bypass is provided for bypassing a turbine of the supercharging device, a valve is provided in the bypass and an actuator for the valve is provided. The actuator comprises a housing partitioned by a first diaphragm into a supercharging pressure chamber and a first atmospheric pressure chamber, the supercharging pressure chamber communicating with the intake passage at the downstream side of the supercharging device; a first connecting rod operatively connects the first diaphragm to the valve so as to operate the valve. A compensating device is provided for offsetting the operating force by the atmospheric pressure. The compensating device comprises a housing, a second diaphragm provided in the housing, a vacuum chamber and a second atmospheric pressure chamber defined by the diaphragm, a spring for biasing the second diaphragm toward the second atmospheric chamber, and a second connecting rod for connecting the second diaphragm to the first rod so as to offset the force by the atmospheric pressure.

REFERENCES:
patent: 2248780 (1941-07-01), Pierce
patent: 2417363 (1947-03-01), Holley
patent: 2480621 (1949-08-01), Warner
patent: 2612225 (1952-09-01), Sparrow

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