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31. 实用新型

JPS56150824U 失效
公开(公告)号：JPS56150824U
公开(公告)日：1981-11-12
申请号：JP4902980
申请日：1980-04-11
IPC分类号： H01H13/36 , F02D9/00 , F02D35/00 , F02M3/00 , F02M3/08 , F02M19/00 , F02M19/01 , H01H13/12

33. 发明专利

JPS5544323B2 失效
公开(公告)号：JPS5544323B2
公开(公告)日：1980-11-12
申请号：JP3885674
申请日：1974-04-08
IPC分类号： G01N19/00 , F02M19/01 , G01B13/00 , G01B13/10 , G01B13/20 , G01B13/24 , G01L7/00

36. 发明专利

JPS5569749A CARBURETOR 失效
公开(公告)号：JPS5569749A
公开(公告)日：1980-05-26
申请号：JP14097778
申请日：1978-11-17
申请人： HITACHI LTD
发明人： ISHIMA KENJI , ICHIKAWA KUNIO , MINAMI YOUICHI
IPC分类号： F02M19/01 , F02M19/00
摘要： PURPOSE:To improve work efficiency in the measurement of minute quantities of fuel flow, by providing a measuring hole, which operates also as a drain hole, in the neighborhood of extension of the axis of a jet shaft so as to connect a fuel measuring terminal from outside directly to a fuel measuring jet or its supporting unit. CONSTITUTION:The variable venturi carburetor is provided with main jet 5, slow jet 6 and starter jet 7. Here, a drain plug, which is normally placed nearly in the center of a float chamber and which is provided with a blind plug, is provided on an extension of the axis of main jet 5 and starter jet 7 and is used as fuel measuring hole 8. Measurement of fuel is operated by using desk tester 10 provided with vacuum pump 9, the fuel flow meter 12 connected to fuel tank 11, fuel switching valve 13 and fuel flow measuring terminal 14. By this, it is possible to read various fuel directly by using measuring hole 8, so that measuring precision and efficiency can be increased.

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