Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-09-07
1995-02-28
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 54, 310 62, H02K 132, H02K 906
Patent
active
053940407
ABSTRACT:
A heat dissipator for an electric motor includes an impeller having an internal heat transfer mechanism. The heat transfer mechanism provides efficient heat transfer from the motor armature to the surrounding environment without forcing cooling fluids into the motor and without transferring heat through the motor housing. The motor can therefore be encased in sealed, light-weight plastic motor housing having relatively poor heat transfer characteristics without danger of overheating. The impeller is preferably designed to displace fluids without turbulence, thereby reducing noise and increasing efficiency. To this end, the impeller employs annular disks stacked on a shaft which may be rotatably mounted in a specially shaped housing and which preferably is formed from an extension of the motor drive shaft. The disks and a complementary surface cooperate so as to use a combination of surface friction, centrifugal forces, and a venturi effect to propel fluids without turbulence. This type of impeller is also preferred because it is sufficiently compact to be attachable to a conventional motor without prohibitively increasing the size of the overall system.
REFERENCES:
patent: 1739137 (1929-12-01), Gay
patent: 2327786 (1943-08-01), Heintz
patent: 2632598 (1953-03-01), Wales, Jr.
patent: 3017848 (1962-01-01), Bishop
patent: 3094273 (1963-06-01), Hull et al.
patent: 3275223 (1966-09-01), Fowell
patent: 3842596 (1974-10-01), Gray
patent: 3866668 (1975-02-01), Doerner
patent: 3914630 (1975-10-01), Lloyd et al.
patent: 4036584 (1977-07-01), Glass
patent: 4137472 (1979-01-01), Workman
patent: 4240000 (1980-12-01), Harano et al.
patent: 4322646 (1982-03-01), Persson
patent: 4406959 (1983-09-01), Harano et al.
patent: 4869644 (1989-09-01), Takigawa
patent: 5073736 (1991-12-01), Gschwender et al.
patent: 5192183 (1993-03-01), Wilkinson
patent: 5209644 (1993-05-01), Dorman
patent: 5283488 (1994-02-01), Ponnappan et al.
Heat Pipe Technology, Inc.
LaBalle Clayton E.
Stephan Steven L.
LandOfFree
Electric motor having internal heat dissipator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric motor having internal heat dissipator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric motor having internal heat dissipator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-850402