Four-cycle engine

Details Four-cycle engine Four-cycle engine

2005-09-27

2005-09-27

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder head

C123S193300

Reexamination Certificate

active

06948470

ABSTRACT:
A cylinder block, a cylinder head and a cylinder head cover are stacked in order to form a four-cycle engine. A valve train of a single overhead camshaft (SOHC) type provided with an intake valve and an exhaust valve is provided in the cylinder head. A line extending parallel with a joint between the cylinder head and the cylinder head cover is inclined forward and downward toward a line parallel with a joint between the cylinder block and the cylinder head. An axis of an exhaust valve and/or an axis of a plug tube is/are perpendicular to the line extending parallel with the joint between the cylinder head and the cylinder head cover. A cylinder head hanger is integrally formed at an uppermost end of a rear portion of the cylinder head over an intake port.

REFERENCES:
patent: 3400696 (1968-09-01), Thompson
patent: 5148781 (1992-09-01), Piatti
patent: 6089196 (2000-07-01), Izuo et al.
patent: 6453861 (2002-09-01), Nomura et al.
patent: 6505592 (2003-01-01), Hayman et al.
patent: 6510837 (2003-01-01), Aoyama
patent: 1-132485 (1989-05-01), None
patent: 9-287464 (1997-11-01), None
patent: 2002-122007 (2002-04-01), None

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