Start-up and control method and apparatus for resonant free pist

Details Start-up and control method and apparatus for resonant free pist Start-up and control method and apparatus for resonant free pist

1982-07-27

1984-03-06

Ostrager, Allen M.

Power plants

Motor operated by expansion and/or contraction of a unit of...

Unit of mass is a gas which is heated or cooled in one of a...

60518, 62 6, F02G 106

Patent

active

044346174

ABSTRACT:
A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine. The excitation control circuit is designed so that it selectively and controllably causes the displacer electrodynamic machine to function either as a generator load to extract power from the displacer or the control circuit selectively can be operated to cause the displacer electrodynamic machine to operate as an electric drive motor to apply additional input power to the displacer in addition to the thermodynamic power feedback to the displacer whereby the displacer linear electrodynamic machine also is used in the electric drive motor mode as a means for initially starting the resonant free-piston Stirling engine.

REFERENCES:
patent: 4215548 (1980-08-01), Beremand
patent: 4345437 (1982-10-01), Dineen
patent: 4361008 (1982-11-01), Dineen
patent: 4389849 (1983-06-01), Gasser et al.

Affiliated with

Also associated with

Rating

Start-up and control method and apparatus for resonant free pist does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Start-up and control method and apparatus for resonant free pist, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Start-up and control method and apparatus for resonant free pist will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-735873