Electrical generator or motor structure – Dynamoelectric – Reciprocating
Patent
1994-01-14
1995-10-17
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Reciprocating
H02K 3500
Patent
active
054593603
ABSTRACT:
A piston-mounted power generator has a piston-mounted magnet unit (1) formed of a coil (2) with a permanent magnet core (3) that is fitted with pole extensions (5, 6). The unit (1) is mounted to the piston skirt (8) with the pole extensions having a small clearance from the inner wall (10) of the piston cylinder formed by cylinder wall liner (12). Shallow grooves (14) are machined into the cylinder wall (10). The grooves (14) have a crescent-shaped longitudinal cross section, that extends circumferentially in the cylinder wall (10) for a distance that is only slightly longer than the width of the pole extensions. The width of each groove (14) is equal to the spacing between the pole extensions (5, 6) and the axial spacing between the adjacent pairs of grooves (14) is equal to the thickness of the pole extensions (5, 6). Electrical power is generated in the coil 2 by the rapid change in flux in the magnetic circuit linked through it as the effective gap between the poles and wall changes as the poles (5, 6) pass each of the grooves (14) and is maximized when the spacing of the poles and grooves results in the magnetic circuit being made and broken simultaneously at both poles. Transducers and telemetry modules (TTM) can be mounted within the interior of the piston and electrically connect to the coil to be powered thereby. To increase the power generated, the grooves (14') can be backfilled with a nonmagnetic material (15) by flame-spraying or the like. For special pistons, annular grooves can be used instead ones having the preferred crescent shape.
REFERENCES:
patent: 3065366 (1959-05-01), Speiser et al.
patent: 3105153 (1960-08-01), James, Jr.
patent: 3206609 (1962-04-01), Dawes
patent: 4019103 (1977-04-01), Davis et al.
patent: 4631455 (1986-12-01), Taishoff
patent: 5179304 (1993-01-01), Kenjo et al.
Archuleta Steven A.
Varo Richard G.
Cummins Engine Company, Inc.
Jones Judson H.
Stephan Steven L.
LandOfFree
Piston-mounted power generator, especially for telemetry systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piston-mounted power generator, especially for telemetry systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piston-mounted power generator, especially for telemetry systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-599670