Title:
内燃機関用過給システム
Document Type and Number:
Japanese Patent JP6384391
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To satisfy an acceleration request by starting supercharging operation of a supercharger and supercharging operation of an electric supercharger at the same time, while suppressing the occurrence of surge in the supercharger when there is the acceleration request.SOLUTION: An internal combustion engine supercharging system includes a supercharger 4 having a turbine 4b including a turbine wheel arranged in an exhaust passage 2 and a compressor 4a including a compressor impeller arranged in an intake passage 3, the turbine wheel and the compressor impeller being connected via a rotary shaft 4c, an intake passage 3' arranged in parallel to a portion of the intake passage 3 where the compressor 4a is arranged, and an electric supercharger 5 arranged in the intake passage 3'. Herein, a bypass passage 6 is provided for communicating a position of the exhaust passage 2 upstream of the turbine 4b with a position of the intake passage 3' downstream of the electric supercharger 5. A bypass valve 7 is arranged in the bypass passage 6. The bypass valve 7 is opened when a supercharging pressure at the time of the acceleration request is a predetermined value or lower.SELECTED DRAWING: Figure 1
Inventors:
Recorded History
Application Number:
JP2015078557A
Publication Date:
September 05, 2018
Filing Date:
April 07, 2015
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02B37/04; F02B37/12; F02B37/16; F02B37/18
Domestic Patent References:
| JP2016104977A | ||||
| JP2014125898A | ||||
| JP2009299522A | ||||
| JP2008045524A | ||||
| JP2007077854A | ||||
| JP2006097591A | ||||
| JP61261622A | ||||
| JP2000500544A | ||||
| JP2016050568A |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi