Hydraulic pulse engine retarder

Details Hydraulic pulse engine retarder Hydraulic pulse engine retarder

1984-07-09

1985-04-16

Cuchlinski, Jr., William A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123 9012, 123198F, F02D 3100

Patent

active

045109001

ABSTRACT:
A compression release engine retarder for a multicylinder four-stroke cycle engine is disclosed. The retarder incorporates an hydraulic pulse generator including a multichamber positive displacement pump of the piston and cylinder or gear pump type which is positively driven at engine speed or at half engine speed in synchronism with the engine crank shaft. Means are provided to adjust the timing of the hydraulic pulses so as to control precisely the opening of the engine exhaust valves and to maximize the compression release retarding power developed by the engine. Additional means are provided to control the timing of the hydraulic pulses in response to the boost pressure in the engine inlet manifold produced by the engine turbocharger.

REFERENCES:
patent: 2635544 (1953-04-01), Lossau
patent: 3220392 (1965-11-01), Cummings
patent: 3306270 (1967-02-01), McCarl
patent: 3367312 (1968-02-01), Jonsson
patent: 3405699 (1968-10-01), Caas
patent: 3547087 (1970-12-01), Siegler
patent: 3786792 (1974-01-01), Pelizzoni et al.
patent: 3809033 (1974-05-01), Cartledge
patent: 3859970 (1975-01-01), Dreisin
patent: 4054156 (1977-10-01), Benson
patent: 4150640 (1979-04-01), Egan
patent: 4271796 (1981-06-01), Sickler et al.

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