Cylinder block

Details Cylinder block Cylinder block

1982-09-20

1984-07-24

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

123195R, F01P 302

Patent

active

044612478

ABSTRACT:
A cylinder block comprises an upper block deck disposed along whole the periphery of a cylinder-barrel section to securely connect the cylinder-barrel section with a water jacket outer wall section. The upper block deck is located below the top of the cylinder block and so positioned that its center lies at the level of an uppermost part of the skirt section of a piston which is at a range from TDC to 30 degrees relative to TDC. Additionally, upper and lower water jackets are formed at the upper and lower sides of the upper block deck, and communicate with each other through water holes formed through the upper block deck. By virtue of the thus located upper block deck, the wall of the cylinder-barrel section is effectively prevented from vibration due to piston slap, thereby greatly reducing piston slap noise emitted from the cylinder block.

REFERENCES:
patent: 1926684 (1933-09-01), Miller
patent: 3173407 (1965-03-01), Sampietro et al.
patent: 3481316 (1969-12-01), Olson et al.
patent: 4305348 (1981-12-01), Martin
AUTOMOTIVE ENGINEERING, "Diesel Noise Reduction: A Study", vol. 90, No. 6, pp. 70-74 (Jun. 1982).

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