Compression release engine retarder

Details Compression release engine retarder Compression release engine retarder

1983-05-05

1984-12-04

Lazarus, Ira S.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123 9012, 123 9015, 123198F, F02D 1304

Patent

active

044857802

ABSTRACT:
An improved engine retarder of the compression release type in which the exhaust valves are opened near the end of the compression stroke of the engine by a slave piston hydraulically interconnected with a master piston driven by an existing pushtube is provided. The improved engine retarder includes a second master piston interconnected hydraulically in parallel with the first master piston and driven by a separate existing pushtube whereby the timing of the compression release event may be regulated and the stress on the engine pushtubes may be reduced.

REFERENCES:
patent: 3220392 (1965-11-01), Cummins
patent: 3405699 (1968-10-01), Laas
patent: 3612015 (1971-10-01), Hausknecht
patent: 4033304 (1977-07-01), Luria
patent: 4150640 (1979-04-01), Egan
patent: 4153016 (1979-05-01), Hausknecht
patent: 4188925 (1980-02-01), Jordan
patent: 4271796 (1981-06-01), Sickler
patent: 4384558 (1983-05-01), Johnson
patent: 4398510 (1983-08-01), Custer
patent: 4399787 (1983-08-01), Cavanagh
patent: 4423712 (1984-01-01), Mayne et al.

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