Invention Grant
US08453437B2 Secondary air supply device for internal combustion engine and control method of the secondary air supply device
失效
用于内燃机的二次空气供应装置和二次空气供应装置的控制方法
- Patent Title: Secondary air supply device for internal combustion engine and control method of the secondary air supply device
- Patent Title (中): 用于内燃机的二次空气供应装置和二次空气供应装置的控制方法
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Application No.: US12441726Application Date: 2008-01-28
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Publication No.: US08453437B2Publication Date: 2013-06-04
- Inventor: Kunihiro Sugihara
- Applicant: Kunihiro Sugihara
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-017697 20070129
- International Application: PCT/IB2008/000187 WO 20080128
- International Announcement: WO2008/093203 WO 20080807
- Main IPC: F01N3/00
- IPC: F01N3/00

Abstract:
A secondary air supply device for an internal combustion engine includes: an electric air pump that supplies secondary air into an exhaust pipe of the internal combustion engine; a controller that controls actuation of the electric air pump according to an operating state of the internal combustion engine; and an air flow mechanism that rotates the electric air pump by causing air in the electric air pump to flow. The controller uses the air flow mechanism to rotate the electric air pump before energizing the electric air pump.
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