Internal-combustion engines – Frame construction – Horizontal cylinder
Patent
1979-09-10
1981-10-13
Cox, Ronald B.
Internal-combustion engines
Frame construction
Horizontal cylinder
123 4174, 123 4184, 123 4183, 123193C, 123193CH, F02F 700, F02F 110, F02B 7518
Patent
active
042942039
ABSTRACT:
An engine structural assembly is disclosed including an integral head and upper cylinder section assembly for use in combination with an integral crankcase and lower cylinder section assembly wherein the upper and lower assemblies are formed to receive a wet cylinder liner which is adapted to be directly contacted by engine coolant over only the exterior surfaces of the liner which are received within the upper assembly. For purposes of forming a coolant cavity around the portion of the liner received in the upper assembly, a coolant seal is provided between the liner and the upper assembly adjacent the joinder zone between the upper and lower assemblies. In one embodiment the liner includes a mid stop located adjacent the upper and lower assemblies for holding the mid section of the liner in a fixed axial position and for applying an axial compressive force to the liner along the portion of the liner received within the upper assembly. Greater efficiency, lower weight, easier maintenance and reduced manufacturing costs are achieved by limiting the total axial length of the liner received in the upper assembly to no more than 40%, and preferably approximately 30%, of the total axial length of the liner.
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Cox Ronald B.
Cummins Engine Company, Inc.
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