Rotary-member lubricating structure
US-2015362024-A1 · Dec 17, 2015 · US
Efficiency spur gear set housing
US9068643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9068643-B2 |
| Application number | US-201213676735-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2012 |
| Priority date | Nov 14, 2012 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
Official abstract text for this publication.
A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
First claim
Opening claim text (preview).
We claim: 1. A housing for a spur gear set, the housing comprising a first member and a second member affixed together to define a gear cavity within which are located a drive gear and a driven gear submerged in fluid, the gear cavity having an area where the gears mesh, the first member comprising an inner wall forming a substantially planar rear inner surface of the gear cavity, the second member forming a substantially planar front inner surface of the gear cavity, the housing f…
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- F16H57/0409Primary
Mechanical Engineering · mapped topic
- F16H57/0424Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US9068643B2 cover?
- A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where …
- Who is the assignee on this patent?
- Caterpillar Inc
- What technology area does this patent fall under?
- Primary CPC classification F16H57/0409. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).