Cylinder block for internal combustion engine

Details Cylinder block for internal combustion engine Cylinder block for internal combustion engine

2006-07-25

2006-07-25

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

C123S041740, C123S041790

Reexamination Certificate

active

07080612

ABSTRACT:
A cylinder block for an internal combustion engine has a water jacket formed between cylindrically configured cylinder walls and a jacket sidewall. The cylinder walls is arranged to slideably retain pistons therein. The jacket sidewall is disposed around an external periphery of the cylinder walls. A pair of external block walls is provided on transverse sides of the cylinder block to extend almost an entire longitudinal length of the cylinder block. The external block walls are spaced apart from the jacket sidewall in a transverse direction to form gaps therebetween. The top end portions of the external block walls constitute an external flange portion of a top deck of the cylinder block. Thus, the rigidity of the top deck of the cylinder block is improved, and the sealing between the cylinder block and a cylinder head via a head gasket is improved.

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