Piston engine having a phosphatized cylinder wall

Details Piston engine having a phosphatized cylinder wall Piston engine having a phosphatized cylinder wall

1985-04-26

1986-09-30

Feinberg, Craig R.

Internal-combustion engines

Combustion chamber

Having coating or liner

123193C, F02B 7508

Patent

active

046141855

ABSTRACT:
A method for constructing and breaking in piston engines includes applying an integral phosphate layer to the interior cylinder wall prior to the insertion of the piston into a cylinder. The invention includes the improved engine so constructed. The phosphate layer decreases oil consumption and improves piston ring seating in such an engine. The phosphatizing solution includes a zinc or manganese salt in phosphoric acid at a pH between about 2.5 and 4.

REFERENCES:
patent: 1825769 (1931-10-01), Barbarou
patent: 1867795 (1932-07-01), Angle
patent: 2926649 (1960-03-01), Hicks
patent: 3019277 (1962-01-01), Rudy

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