发明授权
- 专利标题： Device for detecting malfunction of fuel evaporative purge system
- 专利标题（中）： 用于检测燃料蒸发吹扫系统故障的装置
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申请号： US395804申请日： 1989-08-18
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公开(公告)号： US4962744A公开(公告)日： 1990-10-16
- 发明人: Kouji Uranishi , Takaaki Itou
- 申请人： Kouji Uranishi , Takaaki Itou
- 申请人地址： JPX
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JPX
- 优先权： JPX63-112144[U] 19880829
- 主分类号： F02D41/00
- IPC分类号： F02D41/00 ; F02D41/22 ; F02M25/08
摘要：
A device for detecting a malfunction of a fuel evaporative purge system comprises a temperature sensor for detecting a temperature inside a canister. During the absorbing and purging operations of the purge system, the device calculates changes in the temperature when absorbing and purging and compares the temperature changes with predetermined values denoting that the purge system is operating normally, and determines whether a malfunction has occurred in the purge system from the result of the comparison.
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