Scraping ring and sealing ring used with a cylinder liner in an

Details Scraping ring and sealing ring used with a cylinder liner in an Scraping ring and sealing ring used with a cylinder liner in an

1999-07-13

2000-12-26

Kamen, Noah P.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

123668, 2988806, F02F 100

Patent

active

061642606

ABSTRACT:
An internal combustion engine includes a cylinder block with a cylinder bore. A cylinder head is attached to the cylinder block and covers the cylinder bore. A cylinder liner within the cylinder bore has a distal end, an inside diameter, and an annular recess extending radially outwardly from the inside diameter at the distal end. A piston is reciprocally disposed within the cylinder liner. An annular scraping ring positioned in the annular recess has an inside diameter which is smaller than the inside diameter of the cylinder liner and is configured to scrape deposits from the piston. The scraping ring extends axially beyond the distal end of the cylinder liner. An annular sealing ring is separate from, located by and positioned radially outwardly adjacent to the scraping ring. The sealing ring directly engages and seals between the cylinder head and the distal end of the cylinder liner.

REFERENCES:
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patent: 4474147 (1984-10-01), Hoopes
patent: 4791891 (1988-12-01), Kubis et al.
patent: 4867118 (1989-09-01), Kubis et al.
patent: 5010853 (1991-04-01), Kubis et al.
patent: 5265563 (1993-11-01), Kubis et al.
patent: 5377643 (1995-01-01), Schibalsky

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