Actuator with energy recovery return

Details Actuator with energy recovery return Actuator with energy recovery return

1990-07-24

1991-06-11

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Pneumatic system

123 9011, 91459, 91 42, 137906, 1376256, 13762564, 92 82, 92 92, F01L 904, F01L 902

Patent

active

050223593

ABSTRACT:
An electronically controlled actuator which compresses a fluid thereby storing potential energy as it transitions from a first to a second position is disclosed. The compressed fluid exerts a high force on the actuator and the potential energy is recovered in returning the actuator to the first position. A latching arrangement automatically locks the actuator shaft as it reaches the second position. The latching arrangement is selectively unlocked at the prescribed time to allow the stored potential energy to return the actuator to the first position.

REFERENCES:
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patent: 3431031 (1969-03-01), Ike
patent: 3479927 (1969-11-01), Woodward
patent: 4597322 (1986-07-01), Garnjust et al.
patent: 4852528 (1989-08-01), Richeson et al.
patent: 4873948 (1989-10-01), Richeson et al.
patent: 4878464 (1989-11-01), Richeson, Jr. et al.
patent: 4899700 (1990-02-01), Richeson, Jr. et al.
patent: 4915015 (1990-04-01), Richeson et al.
patent: 4967702 (1990-11-01), Richeson et al.

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