Internal-combustion engines – Engine speed regulator – Specific throttle valve structure
Reexamination Certificate
2008-03-21
2009-12-29
Solis, Erick (Department: 3747)
Internal-combustion engines
Engine speed regulator
Specific throttle valve structure
C123S188140, C123S308000, C123S432000
Reexamination Certificate
active
07637244
ABSTRACT:
An intake air amount controlling apparatus of an engine is provided. The apparatus comprises an intake manifold that is branched from an intake manifold collecting portion of the engine. The intake manifold communicates with an intake port of a cylinder head of a corresponding cylinder. The apparatus further comprises a throttle valve in the intake manifold of the cylinder and a throttle bore provided in the intake manifold. The throttle bore has a curved surface. The throttle valve rotates such that one half of the throttle valve contacts with the curved surface of the throttle bore until the throttle valve reaches a predetermined opening degree. Thus, an air flow via the one half of the throttle valve is prevented from entering the intake port. An air flow via the other half of the throttle valve is allowed to enter the intake port. Areas of cross sections, which are orthogonal to an air flow passing in the intake manifold, of the intake manifold at upstream and downstream of the throttle valve are larger than an area of a cross section, which is orthogonal to an air flow entering the intake port, crossing an open face at which the intake manifold communicates with the intake port.
REFERENCES:
patent: 4323038 (1982-04-01), Motosugi et al.
patent: 5417190 (1995-05-01), Ando et al.
patent: 5671712 (1997-09-01), Uchida
patent: 5799638 (1998-09-01), Tsuchida et al.
patent: 6047950 (2000-04-01), Pontoppidan et al.
patent: 6148794 (2000-11-01), Tsuzuku et al.
patent: 6443124 (2002-09-01), Yamaguchi et al.
patent: 6772730 (2004-08-01), Kohlen
patent: 6971632 (2005-12-01), Elliot et al.
patent: 7128050 (2006-10-01), Abe
patent: 2005/0274354 (2005-12-01), Suzuki et al.
patent: 2007/0044754 (2007-03-01), Peffley et al.
patent: 2007/0227495 (2007-10-01), Isaji et al.
patent: 08-312358 (1996-11-01), None
Akazaki Shusuke
Yamamoto Yuji
Honda Motor Co. Ltd.
Lahive & Cockfield LLP
Laurentano, Esq. Anthony A.
Solis Erick
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