Fixed-rail rotor pump and fixed-rail rotor pump combined supercharging internal-combustion engine
US-10161299-B2 · Dec 25, 2018 · US
Electric Oil Pump
US2016245283A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016245283-A1 |
| Application number | US-201615047197-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 18, 2016 |
| Priority date | Feb 19, 2015 |
| Publication date | Aug 25, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An electric oil pump is provided to including: (i) a pump part housed in a pump part-accommodating portion formed in a metal pump housing; (ii) an electric motor part housed in an electric motor part-accommodating portion formed in the pump housing; and (iii) a drive control part having (a) a control part case fastened to the pump housing and formed of synthetic resin, (b) a control board for supplying a driving current to the electric motor part, and (c) a metal control part cover fastened to the control part case and accommodating the control board. In this pump, the control part cover and the pump housing are covered with an oxide film having corrosion resistance and heat resistance at least at their outer surface, and the pump housing provided with the oxide film is fixed to an automatic transmission casing in a manner to be immersed in a hydraulic oil.
First claim
Opening claim text (preview).
What is claimed is: 1 . An electric oil pump comprising: a pump part housed in a pump part-accommodating portion formed in a metal pump housing; an electric motor part housed in an electric motor part-accommodating portion formed in the pump housing; and a drive control part comprising: a control part case fastened to the pump housing and formed of synthetic resin; a control board for supplying a driving current to the electric motor part; and a metal control part cover fastened to the control part case and accommodating the control board, wherein the pump housing is fixed to a casing of an automatic transmission in a manner to be immersed in a hydraulic oil, and wherein the control part cover and the pump housing are covered with an oxide film having corrosion resistance and heat resistance at least at their outer surface, and the pump housing provided with the oxide film is fixed to the casing of the automatic transmission in a manner to be immersed in the hydraulic oil. 2 . An electric oil pump as claimed in claim 1 , wherein the pump housing and the control part cover are formed of aluminum alloy, and the oxide film comprises aluminum oxide and formed on the outer surface of the pump housing and the outer surface of the control part cover by anodic oxidation treatment. 3 . An electric oil pump as claimed in claim 2 , wherein the oxide film comprising aluminum oxide is subjected to sealing treatment.
Assignees
Inventors
Classifications
of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member · CPC title
- F04C15/0003Primary
Sealing arrangements in rotary-piston machines or pumps (sealing in general F16J) · CPC title
Prime movers · CPC title
Toothed wheels · CPC title
- F04C2/086Primary
Carter · CPC title
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- What does patent US2016245283A1 cover?
- An electric oil pump is provided to including: (i) a pump part housed in a pump part-accommodating portion formed in a metal pump housing; (ii) an electric motor part housed in an electric motor part-accommodating portion formed in the pump housing; and (iii) a drive control part having (a) a control part case fastened to the pump housing and formed of synthetic resin, (b) a control board for s…
- Who is the assignee on this patent?
- Hitachi Automotive Systems Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04C15/0003. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Aug 25 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).