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US 12,049,925 B2Granted
Systems and method for an electric motor with spray ring
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsDarren J. Ziskovsky, Aaron D. Gries, Martin D. Fairchild
Life of this patent
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Abstract
Various systems and methods are provided for an electric motor of a vehicle, and particularly to an electric motor including a coolant spray ring. In one example, a method of manufacture comprises forming, via injection molding, a unitary motor spray ring including a plurality of axial grooves joined to a plurality of nozzle orifices.
Claims20
A method of manufacture, comprising:
- seating a first mold section against a mold base and positioning a plurality of pins extending from the mold base through the first mold section, wherein the first mold section includes an annular surface shaped to mold an inner circumferential surface of a unitary electric motor spray ring;
- and
- forming, via injection molding, the electric motor spray ring including a plurality of axial grooves joined to a plurality of nozzle orifices, the plurality of nozzle orifices being at the inner circumferential surface, the electric motor spray ring formed with a first ring structure and a second ring structure that is directly adjacent to the first ring structure in an axial direction,
- wherein the plurality of pins is shaped to mold the plurality of axial grooves and the plurality of nozzle orifices;
- and
- wherein the plurality of axial grooves are formed into an axial surface of the first ring structure of the electric motor spray ring,
- the plurality of axial grooves extending in the axial direction across an entire axial width of the first ring structure from a first radial surface of the first ring structure to a juncture where the axial surface of the first ring structure and a second radial surface of the second ring structure of the electric motor spray ring meet, and wherein the first radial surface is an end surface of the electric motor spray ring.
4 more elements
A method of manufacture for an electric motor spray ring, comprising:
- sealing a first mold section against a base;
- sealing a second mold section against the first mold section;
- and
- injecting a material into a cavity, wherein the cavity is formed between the first mold section and the second mold section, wherein the cavity is configured to form a unitary electric motor spray ring, the unitary electric motor spray ring comprising a first ring structure and a second ring structure that is directly adjacent to the first ring structure in an axial direction, and wherein the material injected into the cavity is further injected against a plurality of pins extending from the base into the cavity configured to form into an axial surface of the electric motor spray ring with a plurality of axial grooves extending in the axial direction across an entire axial width of the first ring structure from a first radial surface of the first ring structure to a juncture where the axial surface of the first ring structure and a second radial surface of the second ring structure meet, and wherein the first radial surface is an end surface of the electric motor spray ring.
1 more element
An injection molded spray ring for an electric motor, comprising:
- a plurality of axial grooves molded in an outer circumferential surface;
- a plurality of nozzle orifices molded in an inner circumferential surface, in fluidic communication with the plurality of axial grooves;
- and
- a plurality of nozzle guide surfaces molded between the plurality of axial grooves and the plurality of nozzle orifices and curving in a direction toward a central opening of the spray ring,
- wherein the plurality of axial grooves are formed into an axial surface of the spray ring, the plurality of axial grooves extending from a first radial surface of the spray ring to a juncture where the axial surface and a second radial surface of the spray ring meet, and wherein the first radial surface is an end surface of the spray ring.
2 more elements
Dependencies are inferred from the claim text.