Title:
PISTON AND PISTON RING COMBINATION STRUCTURE AND PARTITION RING
Document Type and Number:
WIPO Patent Application WO/2022/210299
Kind Code:
A1
Abstract:
According to the present invention, a piston and piston ring combination structure comprises a ring groove that is provided in an outer circumferential surface of a piston and is for installing a piston ring, one or more piston rings that are installed in the ring groove, and a partition ring that is installed in the ring groove so as to be aligned with the one or more piston rings in the axial direction of the piston. The partition ring is fitted onto a bottom groove wall surface that is a bottom surface of the ring groove so as to be at a prescribed interval from an inner wall of a cylinder.
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Inventors:
NAGAKURA HIROYUKI (JP)
INAMORI SHUICHI (JP)
AYUZAWA NORIAKI (JP)
KAWAI KIYOYUKI (JP)
INAMORI SHUICHI (JP)
AYUZAWA NORIAKI (JP)
KAWAI KIYOYUKI (JP)
Application Number:
PCT/JP2022/014139
Publication Date:
October 06, 2022
Filing Date:
March 24, 2022
Export Citation:
Assignee:
TPR CO LTD (JP)
International Classes:
F02F5/00; F02F3/00; F16J9/16; F16J9/22
Foreign References:
| JPH0363745U | 1991-06-21 | |||
| JPS6240368U | 1987-03-10 | |||
| JPH0643416U | 1994-06-10 |
Attorney, Agent or Firm:
IP Firm SHUWA (JP)
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