Internal-combustion engines – Engine speed regulator – Responsive to deceleration mode
Patent
1986-12-29
1987-12-08
Cuchlinski, Jr., William A.
Internal-combustion engines
Engine speed regulator
Responsive to deceleration mode
123 9046, F02D 1304
Patent
active
047112107
ABSTRACT:
A compression braking system for an internal combustion engine is provided which includes a compact housing disposed adjacent the fuel injecting actuating assembly and the exhaust valve actuating assembly for each cylinder of the engine. The housing is provided with a first cavity in which is reciprocally mounted a first piston having one end thereof protruding from one end of the first cavity and being engaged and moved by the fuel injecting actuating assembly. A second cavity is formed in the housing in a proximate angular relation with the first cavity. Reciprocally mounted within the second cavity is a second piston having one end thereof protruding from one end of the second cavity and engaging and moving the exhaust valve actuating assembly to releases compression pressure within the cylinder and provide retarding power when the engine is in the compression braking mode. A third cavity is provided within the housing which forms a linkage passage communicating with corresponding second ends of the first and second cavities. During normal operation of the engine, the linkage passage is substantially void of hydraulic fluid, thus motion of the first piston is not hydraulically transferred to the second piston. When the engine is in a compression braking mode, hydraulic fluid fills the linkage passage thereby causing the motion of the first piston to be hydraulically transferred through the linkage passage to the second piston and effect movement of the exhaust valve actuating assembly.
REFERENCES:
patent: 2791206 (1957-05-01), Engemann
patent: 3547087 (1970-12-01), Siegler
patent: 3572300 (1971-03-01), Stager et al.
patent: 3809033 (1974-05-01), Cartledge
Cuchlinski Jr. William A.
Cummins Engine Company, Inc.
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