Internal-combustion engines – Engine speed regulator – Specific throttle valve structure
Reexamination Certificate
2008-01-11
2009-10-20
Kwon, John T (Department: 3747)
Internal-combustion engines
Engine speed regulator
Specific throttle valve structure
C123S336000, C123S400000
Reexamination Certificate
active
07603978
ABSTRACT:
To stably maintain an opening degree characteristic of a driven lever, the driven lever (5) is attached to one end (3A) of a main throttle shaft (3) to which a main throttle valve (4) is attached, a cam lever (10) is attached to one end (8A) of a sub throttle shaft (8) to which a sub throttle valve (9) is attached, a cam surface (10A) of the cam lever (10) faces to a roller (5A) of the driven lever (5), a cup-shaped throttle cover (12) is arranged on one side wall (1A) of a throttle body (1), an opening portion (12C) of a throttle cover (12) is closed by a closing cover (20), and a lever storage chamber (22) formed by the throttle cover (12) and the closing cover (20) accommodates the cam lever (10) and the driven lever (5).
REFERENCES:
patent: 4344396 (1982-08-01), Yamada
patent: 4982710 (1991-01-01), Ohta et al.
patent: 5150761 (1992-09-01), Shimanaka et al.
patent: 6530362 (2003-03-01), Yanagii
patent: 6751949 (2004-06-01), Tamura et al.
patent: 7261082 (2007-08-01), Kondo
patent: 2002/0050268 (2002-05-01), Deguchi
patent: 2005-090471 (2005-04-01), None
Inagawa Ryouji
Kojima Yoji
Bacon & Thomas PLLC
Keihin Corporation
Kwon John T
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