Multiple throttle device

Details Multiple throttle device Multiple throttle device

2006-11-28

2006-11-28

Argenbright, T. M. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

C123S399000

Reexamination Certificate

active

07140349

ABSTRACT:
According to the present apparatus, on multi-throttle apparatus provided with multiple throttle valves20that are respectively disposed in multiple intake passages11, a throttle shaft30that simultaneously opens/closes the throttle valves20, drive means50that drives the throttle shaft30, and a return spring60, the driving force of the drive means50is applied to an approximate center of the throttle shaft30, the energizing force of the return spring60is applied close to the location to which the energizing force is applied, and bearings40are provided in mutual intervals between the multiple intake passages11to support the throttle shaft30. Consequently, torsion of the throttle shaft30is prevented, and the throttle valves20are opened/closed synchronously without generating a phase shift. Consequently, electronic control is provided for multi-throttle apparatuses applied to engines of two-wheeled vehicles and the like, and the synchronization among throttle valves is secured.

REFERENCES:
patent: 5651343 (1997-07-01), Evans et al.
patent: 2002/0056824 (2002-05-01), Rentschler et al.
patent: 5-40285 (1993-10-01), None
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patent: 8-218945 (1996-08-01), None
patent: 2002-242680 (2002-08-01), None
patent: 2002-256895 (2002-09-01), None
patent: 2002-256896 (2002-09-01), None

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