Title:
OIL SUCTION MECHANISM
Document Type and Number:
Japanese Patent JP2020148100
Kind Code:
A
Abstract:
To efficiently remove excessive oil on a cylinder inner wall surface.SOLUTION: An oil suction mechanism comprises: a first oil passage 41 formed in at least a connecting rod 6, having a first discharge port 43 for discharging oil and formed in at one end of the first oil passage 41, and having a sliding area 46a on which an inertia body 45 is slidably provided; and a second oil passage 42 communicating a suction port 26 with the first oil passage 41, the suction port 26 opened to an outer circumferential surface 21a of a piston body portion 21. The first oil passage 41 comprises a first connection port 47 formed between the first discharge port 43 and the sliding area 46a, the second oil passage 42 being connected to the first connection port 47. The first oil passage 41 has, between the first discharge port 43 and the first connection portion 47, a first restriction portion 48 permitting the flow of oil from a sliding area 46a side to a first discharge port 43 side, and suppressing the flow of oil from the first discharge port 43 side to the sliding area 46a side. The second oil passage 42 has a second restriction portion 50 permitting the flow of oil from a suction port 26 side to the first connection portion 47 side, and suppressing the flow of oil from the first connection portion 47 side to the suction port 26 side.SELECTED DRAWING: Figure 2
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Inventors:
KITAGAWA TETSUO
MOCHIZUKI HIROSHI
MOCHIZUKI HIROSHI
Application Number:
JP2019043981A
Publication Date:
September 17, 2020
Filing Date:
March 11, 2019
Export Citation:
Assignee:
SUBARU CORP
International Classes:
F02F3/00; F16C7/02; F16J1/08; F16J1/09; F16J1/16
Attorney, Agent or Firm:
Aomi patent office