Internal combustion engine with cylinder and piston having a...

Details Internal combustion engine with cylinder and piston having a... Internal combustion engine with cylinder and piston having a...

2007-01-23

2008-12-23

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

C123S061001

Reexamination Certificate

active

07467613

ABSTRACT:
Internal combustion engines having V-and L-configurations. There are first and second piston systems, each including: an engine block; a cylinder through the engine block; a piston within the cylinder, the piston with piston rings, including a cavity therein the underside; a stump member disposed within the cylinder and sized to be received by the cavity, and having a bore through the center to a direction of travel of the piston; a connecting rod, connected between the piston, and a crankshaft; a first and second combustion chambers defined between the piston, the cylinder, and the upper engine head, and between the piston, the cylinder, the stump member, and the cylinder floor respectively; an inlet port, an outlet port, and a spark plug/fuel injector port; each disposed through the engine block orthogonal to a direction of travel of the piston.

REFERENCES:
patent: 2070769 (1937-02-01), Wurtele
patent: 4414927 (1983-11-01), Simon
patent: 4913100 (1990-04-01), Eickmann
patent: 5676097 (1997-10-01), Montresor
patent: 5967103 (1999-10-01), Kuperman
patent: 6467440 (2002-10-01), Kozulin et al.
patent: D494191 (2004-08-01), Aketa et al.
patent: 6904883 (2005-06-01), Snyder et al.

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