Internal-combustion engines – Engine speed regulator – Charge proportion varying
Reexamination Certificate
2007-07-13
2010-06-08
Cronin, Stephen K (Department: 3747)
Internal-combustion engines
Engine speed regulator
Charge proportion varying
C091S244000
Reexamination Certificate
active
07730873
ABSTRACT:
In an engine having at least one cylinder with a reciprocating piston and a connecting rod for driving rotation of a crank disk and a crankshaft, a cam sleeve is moved along the crankshaft in response to a change in engine speed. The cam sleeve is coupled to a cam ring that moves with the cam sleeve and in a spiraling motion about the longitudinal axis of the crankshaft. A follower engages an outer face of the cam ring and is movable against a pushrod that opens an injector valve. The follower is structured and disposed to move in response to contact with a lobe on the outer face of the cam ring to urge the pushrod against the injector valve. The pushrod passes through a throttle control ring that rotates in an arc. Rotation of the throttle ring, with the use of a control lever, shifts the position of the pushrod on the follower relative to a fulcrum of the follower to control the distance the pushrod is driven by the follower and, thus, the amount the injector valve is opened.
REFERENCES:
patent: 313008 (1885-02-01), Lynn
patent: 2513982 (1950-07-01), Williams
patent: 3786792 (1974-01-01), Pelizzoni et al.
patent: 5149466 (1992-09-01), Megenbier
patent: 7324889 (2008-01-01), Arai et al.
Coleman Keith
Cronin Stephen K
Cyclone Power Technologies, Inc.
Robert M. Downey P.A.
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