Engine cylinder block cooling passage

Details Engine cylinder block cooling passage Engine cylinder block cooling passage

1995-07-05

1998-05-05

Kamen, Noah P.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

123 4179, F02F 110

Patent

active

057461619

ABSTRACT:
A cylinder block (10) of an internal combustion engine (12) includes a cylinder bore (14). The cylinder bore (14) has a cooling passage (18) surrounding it that extends along the cylinder bore (14) for a substantial portion of a piston stroke. The cooling passage (18) near the top of the block (28) is wider than at the bottom of the passage (18). The lower portion of the passage (18) tapers sufficiently that viscous drag affects the velocity within the coolant passage (18), the velocity varying in a direction normal to the general direction of coolant flow.

REFERENCES:
patent: 742970 (1903-01-01), Clementt
patent: 1705390 (1929-06-01), Birkigt
patent: 1731228 (1929-10-01), Burtnett
patent: 5115771 (1992-05-01), Ozawa
patent: 5211137 (1993-05-01), Kawauchi et al.
patent: 5233947 (1993-08-01), Abe et al.
patent: 5299538 (1994-04-01), Kennedy
SAE Paper 931123 "Precision Cooling of a Four Valve Per Cylinder Engine" M. J. Clouth/Jaguar Cars.

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