Over-center actuator

Details Over-center actuator Over-center actuator

2007-10-30

2007-10-30

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

C123S184560

Reexamination Certificate

active

10977659

ABSTRACT:
The disclosure allows a short runner valve or manifold tuning valve type manifold tuning device to retain sufficient force on the valve assembly in its closed state to eliminate any vibration or chatter from the system under normal engine operation. The disclosure also allows the device to be “pulsed” to the open or closed position; thus no electrical power is required to keep the system in one state. This is especially useful if activated times are extended due to certain engine operating conditions.

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patent: 6286181 (2001-09-01), Kasper et al.
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patent: 2001/0022010 (2001-09-01), Kasper
patent: 2003/0205043 (2003-11-01), Ward

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