Differential gear device
US-2019170241-A1 · Jun 6, 2019 · US
Differential apparatus
US10859151B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10859151-B2 |
| Application number | US-201916285167-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2019 |
| Priority date | Mar 1, 2018 |
| Publication date | Dec 8, 2020 |
| Grant date | Dec 8, 2020 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A differential apparatus including a rotating body configured to rotate around a rotation axis to transmit power to a differential mechanism, and a groove formed on the rotating body and configured to guide an oil scooped up by rotation of the rotating body inward in a rotation radial direction of the rotating body.
First claim
Opening claim text (preview).
What is claimed is: 1. A differential apparatus comprising: a differential case configured to house a differential mechanism and rotate around a rotation axis to transmit power to the differential mechanism; and a groove formed on an outer surface of the differential case and configured to guide an oil scooped up by rotation of the differential case inward in a rotation radial direction of the differential case, wherein an opening portion of the groove is formed on a surface perpendicular to the rotation axis of the differential case, wherein the differential apparatus further comprises: a rib formed on the differential case so as to protrude axially along an outer circumference of the groove. 2. The differential apparatus according to claim 1 , wherein a front end portion of the groove in a rotation direction of the differential case is formed outward in the rotation radial direction of the differential case than a rear end portion of the groove in the rotation direction of the differential case, wherein an oil guiding portion between the front end portion and the rear end portion of the groove extends so as to get closer to the rotation axis of the differential case gradually from the front end portion to the rear end portion. 3. The differential apparatus according to claim 1 , further comprising: a lid provided on the differential case so as to partially block the opening portion of the groove. 4. The differential apparatus according to claim 1 , wherein the opening portion of the groove is formed on the differential case so as to oppose to the rotation axis of the differential case. 5. The differential apparatus according to claim 1 , further comprising: an introducing portion formed on the differential case to introduce the oil from the groove into the differential case.
Assignees
Inventors
Classifications
- F16H57/0427Primary
on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force · CPC title
characterised by features of the rotating cases · CPC title
Axle or inter-axle differentials · CPC title
- F16H57/0424Primary
Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes · CPC title
on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10859151B2 cover?
- A differential apparatus including a rotating body configured to rotate around a rotation axis to transmit power to a differential mechanism, and a groove formed on the rotating body and configured to guide an oil scooped up by rotation of the rotating body inward in a rotation radial direction of the rotating body.
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H57/0427. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 08 2020 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).