Stator body centering feature for torque converter
US-2015369069-A1 · Dec 24, 2015 · US
Drive plate and manufacturing method for the same
US9328811B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9328811-B2 |
| Application number | US-201213447826-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2012 |
| Priority date | May 24, 2011 |
| Publication date | May 3, 2016 |
| Grant date | May 3, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A drive plate includes a disk-shaped plate portion; and a tooth-shaped portion formed at an outer peripheral end of the plate portion. The plate portion and the tooth-shaped portion are integrally shaped from a single steel plate material. The plate portion and the tooth-shaped portion include a carburized layer provided over an entire surface layer of the plate portion and the tooth-shaped portion, the carburized layer having a carbon concentration higher than that of a center portion of the plate portion and the tooth-shaped portion in a thickness direction. The carburized layer of the plate portion is higher in hardness than the center portion of the plate portion in the thickness direction. The carburized layer of the tooth-shaped portion has been subjected to a quenching process, and is further higher in hardness than the carburized layer of the plate portion.
First claim
Opening claim text (preview).
What is claimed is: 1. A drive plate comprising: a disk-shaped plate portion; and a tooth-shaped portion formed at an outer peripheral end of the plate portion, wherein: the plate portion and the tooth-shaped portion are integrally shaped from a single steel plate material; the plate portion and the tooth-shaped portion include a carburized layer provided over an entire surface layer of the plate portion and the tooth-shaped portion, the carburized layer having a carbon concentration higher than that of a center portion of the plate portion and the tooth-shaped portion in a thickness direction; the carburized layer of the plate portion is higher in hardness than the center portion of the plate portion in the thickness direction; and the carburized layer of the tooth-shaped portion has been subjected to a quenching process, and is further higher in hardness than the carburized layer of the plate portion, wherein the center portion of the plate portion in the thickness direction has a ferrite structure, the carburized layer of the plate portion has a pearlite structure, and the carburized layer of the tooth-shaped portion has a martensite structure. 2. The drive plate according to claim 1 , wherein the center portion of the plate portion and the tooth-shaped portion in the thickness direction has a carbon concentration of equal to or less than 0.2% by mass, and the carburized layer has a carbon concentration exceeding 0.2% by mass. 3. The drive plate according to claim 1 , wherein the tooth-shaped portion has a surface hardness of equal to or more than 700 HV. 4. The drive plate according to claim 2 , wherein the tooth-shaped portion has a surface hardness of equal to or more than 700 HV.
Assignees
Inventors
Classifications
Ferrous alloys, e.g. steel alloys (cast-iron alloys C22C37/00) · CPC title
Rotary bodies · CPC title
of ferrous surfaces · CPC title
for gear wheels, worm wheels, or the like · CPC title
- F16H41/24Primary
Details · CPC title
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Frequently asked questions
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- What does patent US9328811B2 cover?
- A drive plate includes a disk-shaped plate portion; and a tooth-shaped portion formed at an outer peripheral end of the plate portion. The plate portion and the tooth-shaped portion are integrally shaped from a single steel plate material. The plate portion and the tooth-shaped portion include a carburized layer provided over an entire surface layer of the plate portion and the tooth-shaped por…
- Who is the assignee on this patent?
- Iwata Daisuke, Hori Tomoyuki, Yokoyama Naoki, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification F16H41/24. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue May 03 2016 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).