System for retarding engine speed

Details System for retarding engine speed System for retarding engine speed

1977-06-30

1979-06-19

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123105, 123 9012, F02D 1304

Patent

active

041583485

ABSTRACT:
An engine retarder for a fuel injection engine wherein a charge of fuel is pumped to each cylinder under pressure in timed sequence to reach the cylinder near top dead center of its stroke. A selectively operated bypass valve enables that measured charge of fuel to be delivered at the same time in the cycle, not into the cylinder, but to an actuator which opens the cylinder's exhaust valve near the completion of the piston's compression stroke and then allows the valve to close, the charge of fuel being returned to the tank.

REFERENCES:
patent: 3220392 (1965-11-01), Cummins
patent: 3367312 (1968-02-01), Jonsson
patent: 3439662 (1969-04-01), Jones
patent: 3547087 (1970-12-01), Siegler
patent: 3986351 (1976-10-01), Woods et al.
patent: 4033304 (1977-07-01), Luria

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