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U.S. Department of Energy
Office of Scientific and Technical Information

Cylinder head with coolant passage following squish area and of generally uniform cross sectional area

Patent ·
OSTI ID:6093029
For an internal combustion engine of an automotive vehicle, comprising a cylinder block formed with a cylinder bore and a piston fitted in the bore and reciprocating therein, a cylinder head is described for affixment to the cylinder block and for defining a combustion chamber in cooperation with the piston and the cylinder bore, formed with: (a) a portion which extends from a portion lying over a peripheral portion of the cylinder bore toward a central portion of the combustion chamber and which in cooperation with a portion of the piston defines a squish area of the combustion chamber; and: (b) a coolant passage formed through the cylinder head as convexly curved at a portion thereof adjacent to the squish area toward a central portion of the combustion chamber so as more extensively to overlie and directly to cool the squish area; (c) the coolant passage being of substantially the same cross sectional area along its extent.
Assignee:
Toyota Jidosha Kabushiki Kaisha, Aichi
Patent Number(s):
US 4690105
OSTI ID:
6093029
Country of Publication:
United States
Language:
English