Cooling structure for multi-cylinder piston-engine cylinder bloc

Details Cooling structure for multi-cylinder piston-engine cylinder bloc Cooling structure for multi-cylinder piston-engine cylinder bloc

1985-03-08

1987-05-19

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

Multiple cylinders with equalized cooling

123 4174, F01P 302

Patent

active

046658670

ABSTRACT:
A cooling structure for a multi-cylinder piston-engine cylinder block includes a side coolant gallery distributing coolant into a water jacket surrounding a group of cylinders arranged from upstream to downstream. The flow cross-section of the coolant gallery decreases toward its downstream end. The water jacket has a water jacket wall which constitutes part of the coolant gallery. The water jacket wall includes a group of coolant inlets, each of which directs coolant towards the upper part of each of the cylinders. At least one coolant inlet is offset from the center of the corresponding cylinder toward a clearance between adjoining cylinders. This cooling structure can cool all of the cylinders uniformly and the entire surface of each cylinder evenly.

REFERENCES:
patent: 1680567 (1928-08-01), Pitzman
patent: 2089454 (1937-08-01), Walden
patent: 2368080 (1945-01-01), Ginn et al.
patent: 2953126 (1960-09-01), Kolbe
patent: 4419970 (1983-12-01), Shaw
patent: 4493294 (1985-01-01), Umemura

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