Title:
Variable-length Cong Rod and a variable compression ratio internal-combustion engine
Document Type and Number:
Japanese Patent JP6172135
Kind Code:
B2
Abstract:
A variable length connecting rod which can change the effective length comprises a connecting rod body, an eccentric member which is attached at the small end to the connecting rod body to be able to swivel and which changes the effective length of a variable length connecting rod when swiveled, one piston mechanism which has one hydraulic cylinder which is provided in the connecting rod body and one hydraulic piston which slides in the hydraulic cylinder, a direction switching mechanism which switches between supply and discharge of hydraulic fluid to the hydraulic cylinder, and a hydraulic fluid supply source which supplies the hydraulic cylinder with hydraulic fluid. The piston mechanism is configured so that the eccentric member swivels in one direction if hydraulic fluid is supplied to the hydraulic cylinder and so that the eccentric member swivels in the other direction if hydraulic fluid is discharged from the hydraulic cylinder.
Inventors:
Shuichi Ezaki
Akio Kidooka
Yoshiro Kamo
Akio Kidooka
Yoshiro Kamo
Application Number:
JP2014259413A
Publication Date:
August 02, 2017
Filing Date:
December 22, 2014
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D15/02; F02B75/04; F16C7/06
Domestic Patent References:
| JP59040537U | ||||
| JP2011196549A | ||||
| JP3242433A |
Foreign References:
| WO2014019683A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Koichi Ito
Yuichi Morimoto
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Koichi Ito
Yuichi Morimoto