Method and apparatus for reduced oil consumption and oil deterio

Details Method and apparatus for reduced oil consumption and oil deterio Method and apparatus for reduced oil consumption and oil deterio

1989-06-01

1990-06-26

Cross, E. Rollins

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

92212, 92160, 277170, 123 74AE, F02F 500

Patent

active

049362690

ABSTRACT:
A method and apparatus for reducing oil consumption and oil deterioration in a reciprocating engine. The engine is provided with ceramic rings and ceramic cylinder linings. Minimal oil lubricant is adsorbed on the surface layer of the rings and liners to form a lubricating boundary-film on the rings and linings. Excess oil lubricant is restricted from entering the piston ring/cylinder lining region to preclude the formation of a hydrodynamic, full film lubricant layer between the rings and linings. Several engine designs are disclosed.

REFERENCES:
patent: 1423680 (1922-07-01), Pfeil
patent: 1699260 (1929-01-01), Winfield
patent: 2982589 (1961-05-01), Richardson, Jr.
patent: 3177861 (1965-04-01), Quillian, Jr.
patent: 3521531 (1970-07-01), Kaesemodel
patent: 4598675 (1986-07-01), Long
patent: 4785720 (1988-11-01), Kojima et al.

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