Cylinder block for engine

Details Cylinder block for engine Cylinder block for engine

2006-05-02

2006-05-02

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

C123S1950HC

Reexamination Certificate

active

07036479

ABSTRACT:
A cylinder block for an engine has a cylinder assembly having a plurality of cylinders, each corresponding to one of a plurality of pistons. A block body has an outer wall accommodating the cylinder assembly, a crankcase accommodating the crankshaft, and a plurality of partitions. The partitions divide the space in the crankcase into a plurality of crank chambers. The number of the crank chambers corresponds to the number of the cylinders. The outer wall, the crankcase, and the partitions are formed integrally. A partition through portion is formed in a predetermined one of the partitions to connect an adjacent pair of the crank chambers. The partition through portion opens toward the cylinders.

REFERENCES:
patent: 6244238 (2001-06-01), Takahashi et al.
patent: 1288477 (2003-03-01), None
patent: 2000-136752 (2000-05-01), None
patent: 2001-241356 (2001-09-01), None
patent: 2002-180900 (2002-06-01), None
patent: 2003-074408 (2003-03-01), None

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