Internal-combustion engines – Poppet valve operating mechanism – Rocker
Reexamination Certificate
2008-05-13
2008-05-13
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Rocker
C123S193500, C123S193600, C123S279000
Reexamination Certificate
active
07370618
ABSTRACT:
Otto cycle internal combustion engine, comprising a cylinder block including at least one cylinder having a longitudinal axis, a piston movable within said cylinder and having a recess open on a head surface of the piston, a head fastened to said cylinder block and having a surface facing the cylinder, three intake valves and two exhaust valves movable along respective rectilinear directions, a combustion chamber delimited at one side by a portion of the surface of the head facing the cylinder and, at the other side, by the surface of said recess of the piston. The directions of motion of the valves are parallel to each other, the surface of the head facing the cylinder is planar and orthogonal to the directions of motion of the valves and the combustion chamber is obtained exclusively in the piston.
REFERENCES:
patent: 5868113 (1999-02-01), Yoshikawa
patent: 6705261 (2004-03-01), Haghgooie et al.
patent: 197 16 642 (1998-10-01), None
patent: 39 43 816 (2001-01-01), None
patent: 103 04 167 (2004-08-01), None
patent: 1 253 304 (2002-04-01), None
patent: 1 348 854 (2003-10-01), None
EP Search Report, Application No. EP 07 10 0419, dated Jun. 18, 2007.
Chang Ching
Patterson & Sheridan LLP
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