Title:
THIN WIDTH THREE-PIECE OIL RING
Document Type and Number:
Japanese Patent JPH1089477
Kind Code:
A
Abstract:
To suppress the amount of oil cunsumption by smoothly guiding the oil scraped down to an oil drain hole.
A rectangular oil through hole 11 piercing in the radial direction is formed in an inner circumferential side ring projection 4 in connection to the radial inner end of an outer circumferential side slit 6 made up in an outer circumferential side ring projection 3 of a spacer expander 2. An oil passage is augmented by this oil through hole, and then the slit 6 and the oil through hole 11 both are turned to the rectilinear oil passage, whereby the oil scraped down by two side rails 10 and 10' is smoothly guided to an inner circumferential side of the expander 2.
Inventors:
ISHIHARA KATSUSHI
Application Number:
JP26528796A
Publication Date:
April 07, 1998
Filing Date:
September 13, 1996
Export Citation:
Assignee:
NIPPON PISTON RING CO LTD
International Classes:
F02F5/00; F16J9/06; (IPC1-7): F16J9/06; F02F5/00
Attorney, Agent or Firm:
Kazuhiro Kitazawa (1 outside)