Tandem valve type throttle body

Details Tandem valve type throttle body Tandem valve type throttle body

2005-01-18

2005-01-18

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

C123S399000, C123S442000

Reexamination Certificate

active

06843223

ABSTRACT:
To improve freedom of mounting to a motor cycle, a tandem valve type throttle body is provided with a throttle valve (4) in the downstream side of an intake passage (2) and a sub throttle valve (9) in the upstream side thereof, a sub throttle valve shaft (8) is rotated by a motor (M), a sub throttle valve lever (10) and a throttle valve lever (5) are connected by a transmission member, the shaft (8) and a sensor rotor (TA) of an opening degree sensor (T) are energized in the opening direction of the shaft (9) by a rotor spring (TC), a link lever spring (14) pressing the transmission member (12) in one direction is energized in the closing direction of the valve (9), and torque is set so as to cancel spring forces applied to the shaft (8) by both the springs (TC), (14).

REFERENCES:
patent: 5-113138 (1993-05-01), None

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