Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1997-10-31
1999-12-07
Thorpe, Timothy S.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
417357, 417370, 310 54, 310 86, F04B 3906
Patent
active
059972610
ABSTRACT:
A brushless water pump motor includes a pump housing having an impeller chamber with an impeller disposed therein, and a motor assembly coupled at a first end thereof to the pump housing. The motor assembly includes a stator assembly having laminations and windings, the stator having an interior portion defining a rotor chamber in which a rotor assembly is disposed. There is a partition structure provided between the rotor assembly and the stator assembly for isolating the stator assembly from the rotor chamber, and the partition structure has a wall in communication with the rotor chamber. The pump/motor assembly further includes a hollow shaft in communication with the rotor chamber, such that the rotor assembly and impeller are mounted on the hollow shaft. A bearing structure is operatively associated with the hollow portion of the shaft for supporting the shaft for rotational movement. The pump motor further includes an electronic control unit coupled to a second end of the motor assembly and has an upper surface in communication with the rotor chamber. A fluid flow path structure is arranged to permit fluid to pass from a high pressure portion of the impeller chamber to enter the rotor chamber to submerge the rotor assembly in the fluid and fluid may contact the upper surface of the electronic control unit to cool the electronic control unit. By contacting the wall of the partition structure, the fluid cools the laminations and windings, and by entering the hollow portion of the shaft, the fluid cools the bearing structure.
REFERENCES:
patent: 2809590 (1957-10-01), Brown
patent: 2871791 (1959-02-01), Litzenberg
patent: 2925041 (1960-02-01), Sigmund
patent: 2939399 (1960-06-01), Rutschi
patent: 3118384 (1964-01-01), Sence et al.
patent: 3135211 (1964-06-01), Pezzillo
patent: 3220349 (1965-11-01), White
patent: 3220350 (1965-11-01), White
patent: 3225698 (1965-12-01), Spisiak
patent: 3288073 (1966-11-01), Pezzillo
patent: 3588290 (1971-06-01), Kreutzkampf
patent: 3644067 (1972-02-01), Yowell
patent: 4013384 (1977-03-01), Oikawa
patent: 4047847 (1977-09-01), Oikawa
patent: 4644202 (1987-02-01), Kroy et al.
patent: 4652218 (1987-03-01), Tsutsui et al.
patent: 4684329 (1987-08-01), Hashimoto
patent: 4890988 (1990-01-01), Kramer et al.
patent: 4998865 (1991-03-01), Nakanishi et al.
patent: 5118466 (1992-06-01), Raymond et al.
patent: 5248245 (1993-09-01), Behnke et al.
patent: 5306972 (1994-04-01), Hokanson et al.
patent: 5332369 (1994-07-01), Jensen
patent: 5365132 (1994-11-01), Hann et al.
patent: 5592039 (1997-01-01), Guardiani
patent: 5785013 (1998-07-01), Sinn et al.
Horski Marek
Kershaw Peter A.
Muszynski Jerzy
Siemens Canada Limited
Thorpe Timothy S.
Tyler Cheryl J.
LandOfFree
Pump motor having fluid cooling system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pump motor having fluid cooling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump motor having fluid cooling system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-817156