Electro-pneumatic actuator

Details Electro-pneumatic actuator Electro-pneumatic actuator

F - Mech Eng,Light,Heat,Weapons

15

B

342/24, 138/83

F15B 15/14 (2006.01) F01L 9/02 (2006.01) F01L 9/04 (2006.01)

Patent

CA 2007076

PHA. 40-558 08-08-1989 ABSTRACT: ELECTRO-PNEUMATIC ACTUATOR A bistable electronically controlled pneumatically powered transducer for use, for example, as a valve mechanism actuator in an internal combustion engine is disclosed. The transducer has a piston which is coupled to an engine valve, for example. The piston is powered by a pneumatic source and is held in each of its extreme positions, and air control valves are held in their closed positions by pressurized air and/or permanent magnet latching arrangements and the control valves are released therefrom to supply air to the piston, and the piston is released therefrom to be pneumatically driven to the other extreme position by an electromagnetic neutralization of the permanent magnet field. The piston forms a part of the magnetic latching circuit and that magnetic circuit also includes a radially slotted ferromagnetic member to both complete the magnetic circuit and provide a good air communication path from a high pressure air inlet to the control valve. A pair of auxiliary pistons movable with the piston compress air to a pressure above the pressure of the pneumatic source for aiding reclosure of the control valves as well as aiding maintenance of those control valves in their closed positions thereby reducing the size and cost of the latching permanent magnets.

Affiliated with

Also associated with

Rating

Electro-pneumatic actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-pneumatic actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-pneumatic actuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1869182