Title:
OPEN AND CLOSE CONTROL DEVICE OF WASTE GATE VALVE
Document Type and Number:
Japanese Patent JP2012097678
Kind Code:
A
Abstract:
To prevent the occurrence of a turbo lag associated with an opening/closing operation of a waste gate valve.
An opening/closing control device of the waste gate valve 210 which is located on a bypass passage 111 bypassing a turbine wheel 101 includes: a negative pressure actuator 230 for opening and closing the waste gate valve 210; a negative pressure source 260 driven by an engine 1; a shut-off valve 240 inserted between the negative pressure actuator 230 and the negative pressure source 260; and a shut-off valve control unit 320 for controlling the opening/closing of the shut-off valve 240. In addition, the shut-off valve control unit 320 closes the shut-off valve 240 when a stop condition of the engine 1 is satisfied.
Inventors:
OKI TOSHINORI
Application Number:
JP2010247083A
Publication Date:
May 24, 2012
Filing Date:
November 04, 2010
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02B37/12; F02B37/18
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office