Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent
1999-08-02
2000-06-27
Wolfe, Willis R.
Internal-combustion engines
Cooling
With jacketed head and/or cylinder
123 4179, F02F 110
Patent
active
060793759
ABSTRACT:
An engine cylinder liner includes inner and outer walls formed integral with a head seat rim and defining a coolant jacket for cooling the inner cylinder wall. Stiffening ribs are provided for strengthening the upper liner structure to withstand combustion forces between the liner and a cylinder head attached to the head seat rim. The stiffening ribs are generally triangular and extend from a low point on the outer wall upward and inward to connection with the inner wall adjacent stud bosses in the head seat rim. Thus, connection of the ribs with the inner wall is minimized and the free flow of coolant along the inner wall is maximized, thereby improving cooling of the cylinder wall and reducing wear and scuffing of the liner in service.
REFERENCES:
patent: 1682436 (1928-08-01), Sprado
patent: 2296748 (1942-09-01), Straub
patent: 4093842 (1978-06-01), Scott
patent: 5062393 (1991-11-01), Smith et al.
patent: 5758608 (1998-06-01), Berger et al.
patent: 5842447 (1998-12-01), Krothky et al.
Cryer, III Edward J.
Duerr Werner C.
Kumar Vijaya
Ellis Dean L.
General Motors Corporation
Harris Katrina B.
Wolfe Willis R.
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