Apparatus and method for retarding an engine

Details Apparatus and method for retarding an engine Apparatus and method for retarding an engine

1988-05-02

1989-07-18

Myhre, Charles J.

Internal-combustion engines

Starting device

Compression relieving type

123320, 123323, F01L 1308, F02D 906

Patent

active

048482897

ABSTRACT:
The invention includes an apparatus for retarding an engine. There is a mechanism, such as a master and slave cylinder arrangement, for cracking open each exhaust valve of each cylinder of the engine near top dead center of each compression stroke. There is also provision for increasing the pressure of gases in the exhaust manifold sufficiently to open exhaust valves of other cylinders on the intake stroke after each exhaust valve on the compression stroke is so opened. The provision for increasing the pressure of gases in the exhaust manifold may include retarding timing of the cracking open of the exhaust valves on the compression stroke and a valve or other device for restricting a flow of exhaust gases from the exhaust manifold.

REFERENCES:
patent: 1637118 (1927-07-01), Kirchensteiner
patent: 3330263 (1967-07-01), Weglage et al.
patent: 4395884 (1983-08-01), Price
patent: 4474006 (1984-10-01), Price
patent: 4572114 (1986-02-01), Sickler
patent: 4662332 (1987-05-01), Bergmann et al.

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