Title:
Variable compression ratio engine tubular control valve
Document Type and Number:
Japanese Patent JP5968903
Kind Code:
B2
Abstract:
A tubular valve for adjusting the compression ratio of a variable compression ratio engine includes a straight tube capable of longitudinal translational movement in a valve casing including a low-pressure chamber, the straight tube including a first end opening into the low-pressure chamber and a second end opening into a high-pressure chamber, the second end adapted to contact with at least one shut-off surface secured to the valve casing to seal the second end, the straight tube contacting the shut-off surface by at least one nonreturn and shut-off spring; sealing element for sealing between the external surface of the straight tube and the valve casing isolating the high-pressure chamber from the low-pressure chamber, the sealing element including a nonreturn tube inside which the straight tube is held; and an electric actuator for applying to the straight tube a force opposing that of the spring.
Inventors:
RABHI Vianney
Application Number:
JP2013545475A
Publication Date:
August 10, 2016
Filing Date:
December 21, 2011
Export Citation:
Assignee:
RABHI Vianney
International Classes:
F02B75/04; F16K31/04; F16K31/06
Domestic Patent References:
| JP2010525207A | ||||
| JP62043274U |
Foreign References:
| WO2006064865A1 | ||||
| US6354250 |
Attorney, Agent or Firm:
Yuji Tsujida
Yoshihiro Shimizu
Shinichi Abe
Yoshihiro Shimizu
Shinichi Abe