Submerged rotor electric water pump with structural wetsleeve
First Claim
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1. An electric pump comprising:
- a rotor,a wetsleeve surrounding the rotor, wherein the wetsleeve includes;
a cap that is a flanged portion of said wetsleeve;
a sleeve that houses the rotor; and
a seat in communication with a shaft of the rotor so that the seat assists in supporting the shaft;
a stator assembled to the wetsleeve, wherein the rotor and stator have a magnetic air gap;
an electronic donut that includes a printed circuit board and assists in controlling the electric pump, wherein the electronic donut is in direct contact with the wetsleeve so that the electronic donut is cooled by fluid moving through the wetsleeve;
a boot portion that surrounds the electronic donut and stator; and
a volute having an input and an output so that fluid is circulated through the pump, wherein the volute includes a power supply connection;
wherein the wetsleeve includes a power adapter configured so that the power supply connection extends through the wetsleeve and is in communication with the electronic donut.
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Abstract
An electric water pump, and more specifically an electric water pump having an improved wet sleeve so that the water pump is free of a housing. The electric water includes a pump rotor having a shaft. A wetsleeve surrounds the rotor and has a cap, a sleeve that houses the rotor, and a seat in communication with the shaft of the rotor so that the seat assists in supporting the shaft a stator. Surrounding the wet sleeve and the rotor is a volute covering an upper portion of the rotor, wet sleeve, and stator. The electric water pump further includes a rubber boot covering a lower portion of the rotor, wet sleeve, and stator and is in communication with the volute forming a cover.
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Citations
15 Claims
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1. An electric pump comprising:
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a rotor, a wetsleeve surrounding the rotor, wherein the wetsleeve includes;
a cap that is a flanged portion of said wetsleeve;
a sleeve that houses the rotor; and
a seat in communication with a shaft of the rotor so that the seat assists in supporting the shaft;a stator assembled to the wetsleeve, wherein the rotor and stator have a magnetic air gap; an electronic donut that includes a printed circuit board and assists in controlling the electric pump, wherein the electronic donut is in direct contact with the wetsleeve so that the electronic donut is cooled by fluid moving through the wetsleeve; a boot portion that surrounds the electronic donut and stator; and a volute having an input and an output so that fluid is circulated through the pump, wherein the volute includes a power supply connection;
wherein the wetsleeve includes a power adapter configured so that the power supply connection extends through the wetsleeve and is in communication with the electronic donut. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electric pump comprising:
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a rotor having a shaft; a wetsleeve surrounding the rotor, wherein the wetsleeve comprises; a cap; a sleeve that houses the rotor; and a seat in communication with the shaft of the rotor so that the seat assists in supporting the shaft; a stator surrounding the wetsleeve and the rotor; a volute covering an upper portion of the rotor, wetsleeve, and stator, wherein the volute includes a power supply connection; a rubber boot covering a lower portion of the rotor, wetsleeve, and stator, wherein the rubber boot connects to the volute forming a cover; wherein the rotor and stator have a magnetic air gap of about 1.5 mm or less; and an electronic donut that includes a printed circuit board and assists in controlling the electric pump, wherein the electronic donut is in direct contact with the wetsleeve so that the electronic donut is cooled by a fluid moving through the wetsleeve, and wherein the wetsleeve includes a power adapter configured so that the power supply connection extends through the wetsleeve and is in communication with the electronic donut. - View Dependent Claims (14, 15)
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Specification