Invention Grant
- Patent Title: Checking functionality of fuel tank vapor pressure sensor
- Patent Title (中): 检查燃油箱蒸汽压力传感器的功能
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Application No.: US12707728Application Date: 2010-02-18
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Publication No.: US08342157B2Publication Date: 2013-01-01
- Inventor: Raffi Der Manuelian , Kenneth J. Kalvelage , Timothy E. McCarthy
- Applicant: Raffi Der Manuelian , Kenneth J. Kalvelage , Timothy E. McCarthy
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F02M33/02
- IPC: F02M33/02
Abstract:
A vehicle fuel emissions system includes a fuel tank, a tank pressure sensor indicating a pressure differential between the tank and a port communicating with the atmosphere, a pump for selectively producing vacuum in the tank, and a passage connecting the pump and a pressure sensor air reference port external to the system.
Public/Granted literature
- US20110197862A1 Checking Functionality of Fuel Tank Vapor Pressure Sensor Public/Granted day:2011-08-18
Information query
