Variable valve mechanism

Details Variable valve mechanism Variable valve mechanism

2007-04-24

2007-04-24

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090170, C123S090310

Reexamination Certificate

active

10548199

ABSTRACT:
Intake camshafts10, 14for driving valve bodies32(intake valve) are positioned in right- and left-hand banks, respectively. A variable valve mechanism30is positioned in each of the right- and left-hand banks in such a manner as to form mirror-image symmetry. The variable valve mechanism30includes a control shaft60for controlling the operating angle of the valve body. The respective control shafts in the right- and left-hand banks are controlled in symmetrical directions. The right- and left-hand intake camshafts10, 14rotate in opposite directions and at a speed that is synchronized with the speed of a crankshaft.

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patent: 6419607 (2002-07-01), Wild et al.
patent: 6457446 (2002-10-01), Willmot
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patent: A 10-169421 (1998-06-01), None
patent: A 2001-123810 (2001-05-01), None
patent: A 2001-182505 (2001-07-01), None
patent: A 2002-371816 (2002-12-01), None

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