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

Cylinder block for internal combustion engine

Patent ·
OSTI ID:5074409
This patent describes an internal combustion engine comprising: a cylinder block; means defining at least one cylinder in the cylinder block; a cylinder head attached to the cylinder block in a manner to close one end of the at least one cylinder and define a combustion chamber therein; means defining a coolant jacket in the cylinder block, the coolant jacket surrounding the at least one cylinder; a condenser in which gaseous coolant is condensed to its liquid form; means for communicating between the cylinder block and the condenser for introducing liquid coolant from the condenser into the coolant jacket; means for collecting gaseous coolant produced by the boiling of the liquid coolant introduced into the coolant jacket, the collecting means defining a cavity; means for conveying the coolant collected in the cavity to the condenser for condensation therein; an upper deck formed along the top of the cylinder block and against which the cylinder head is secured; a lower deck formed along the bottom of the cylinder block; at least one non-perforate rib member in the coolant jacket which extends between and interconnects the upper deck and the lower deck, and means defining apertures in the upper deck through which the gaseous coolant produced by the boiling of the coolant in cell-like compartments is transferred to the cavity.
Assignee:
Nissan Motor Co., Ltd., Yokohama
Patent Number(s):
US 4616600
OSTI ID:
5074409
Country of Publication:
United States
Language:
English