Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1992-07-07
1993-02-23
Wolfe, Willis R.
Internal-combustion engines
Engine speed regulator
Idle speed control
25112915, 251214, 251318, F02D 4116, F16K 3102, F16K 4100
Patent
active
051880733
ABSTRACT:
A fluid control valve which regulates a flow rate of a liquid and, more particularly, which controls a fluid by axially moving a valve body fixed to a valve shaft. The fluid control valve comprises a device for absorbing vibrations of the valve shaft in a direction perpendicular to the axis thereof. More specifically, there is provided a device for exerting a pressing force to lightly press the valve shaft against the inner walls of bearings. Alternatively, the valve shaft may be held between a plurality of elastic plates fixed on the inner surface of a valve casing. A support member for such a valve shaft used in the fluid control valve comprises a disk having a center hole through which the valve shaft is inserted, an annular member formed around the disk, and an elastic piece one end of which is secured to the disk or the annular member, while the other end of the elastic piece is extended to the vicinity of the center of the hole, so that the annular member is fixed on the inner surface of the valve casing, and that the distal end of the elastic piece is pressed against the valve shaft which is extended through the hole. According to the invention, vibrations of the center shaft in radial directions can be suppressed to prevent unstable movements of the valve.
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Ejiri Yuki
Honma Hideki
Niida Chiaki
Okazaki Tsutomu
Saeki Hiroaki
Hitachi , Ltd.
Hitachi Automotive Engineering Co. Ltd.
Wolfe Willis R.
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