Patent · US Active

Variable compression ratio mechanism

US11098620B2 · kind B2 · utility

1Cited by

3References

8Claims

0Family size

Assignee

IHI Corporation · JP

Inventors

Yutaka Masuda · Tokyo, JP
Jun Teramoto · Tokyo, JP
Ryo Ohara · Tokyo, JP

Key dates

Filing date	Nov 20, 2020
Grant date	Aug 24, 2021
Priority date	—
Expiry date	Nov 20, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M2001/066
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Provided is a compression ratio varying mechanism, including a communication hole including: a first opening opened in an outer peripheral side surface of a piston rod; and a second opening, which is prevented from being opposed to the first opening in a radial direction of a piston rod, and is connected to an oil passage at a position apart from the first opening in a stroke direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.