| 摘要 |
PROBLEM TO BE SOLVED: To provide an ejector device for detecting clogging of a fluid in an ejector. SOLUTION: This ejector device has the ejector 40. The ejector 40 discharges air introduced from upstream of a throttle valve 22 of a suction pipe 14 to downstream the throttle valve 22 of an intake manifold 24, and thereby introduces brake booster negative pressure larger than intake manifold negative pressure into a brake booster 34. An ON-OFF valve 42 is disposed between the ejector 40 and the suction pipe 14 to switch between communication and shutoff of them so as to control operation/non-operation of the ejector 40. The clogging of the passage of the ejector 40 is determined based on difference in air amount sucked into the suction pipe 14 before and after the switching between the operation and non-operation of the ejector 40 by the ON-OFF valve 42. COPYRIGHT: (C)2005,JPO&NCIPI
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