Electronically controlled engine mount

Details Electronically controlled engine mount Electronically controlled engine mount

1997-05-09

2000-09-19

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, F16F 1300

Patent

active

061200123

ABSTRACT:
An engine mount which is capable of changing its vibration transmission characteristics with a simple structure using an inexpensive actuator is provided. A partition is inserted to a side member to which a mount rubber (rubber vibration isolator) of the engine mount is spliced to close a space between the mount rubber and to create an air chamber. An air duct pipe which communicates with the air chamber is connected to the side member and is connected to a VSV (vacuum switching valve) via a connection pipe. The VSV is controlled to ON/OFF states based on a driving voltage Vout from an ECU which corresponds to explosive vibrations of the engine to switch pressure within the air chamber to negative pressure of a vacuum tank in which negative pressure of an intake manifold is accumulated or to atmospheric pressure, interlocking with the vibration of the engine. Thereby, the vibration transmission characteristics of the engine mount may be adequately changed and the vehicular vibration may be reduced significantly.

REFERENCES:
patent: 4590564 (1986-05-01), Ishikawa et al.
patent: 4650170 (1987-03-01), Fukushima
patent: 4693455 (1987-09-01), Andra267140.1

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