| 摘要 |
The throttle device (12) is arranged in front of the narrowest cross-section (11) of the venturi tube (10) and the main nozzle aperture (15) and the no-load nozzle aperture (27) are downstream of the throttle device. A venting conduit (25) is provided from the venting chamber (24) of the regulating membrane (21) leading to a section of the venturi tube (10) downstream of the throttle device.- DETAILED DESCRIPTION - The issuing point (26) of the venting conduit is so arranged in its position that with the throttle device opened the vacuum in the venting chamber is less than that at the no-load nozzle aperture (27)
|
