Timing belt cover assembly for vehicle
US-2017292601-A1 · Oct 12, 2017 · US
Chain cover
US11242820B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11242820-B2 |
| Application number | US-202016898755-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 11, 2020 |
| Priority date | Jun 21, 2019 |
| Publication date | Feb 8, 2022 |
| Grant date | Feb 8, 2022 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.
First claim
Opening claim text (preview).
The invention claimed is: 1. A chain cover that is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft, the chain cover comprising: a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted; and a general portion that is a section different from the crankshaft-side opening forming portion, wherein the crankshaft-side opening forming portion is made of a first material, the general portion is made of a second material, the first material and the second material are different from each other, the chain cover includes a camshaft-side opening into which the camshaft is inserted, a section of the chain cover that defines the camshaft-side opening is made of a third material, and the third material is different from both the first material and the second material. 2. The chain cover according to claim 1 , wherein the third material has a lower coefficient of linear expansion than the second material. 3. The chain cover according to claim 1 , wherein the third material has a lower water absorbency than the second material. 4. The chain cover according to claim 1 , wherein at least one of the first material, the second material, and the third material is a plastic material. 5. The chain cover according to claim 1 , comprising fixing portions used to fix the chain cover to the internal combustion engine, wherein the fixing portions are provided in a region of the chain cover that includes the section defining the camshaft-side opening and is made of the third material, and the fixing portions are located on opposite sides of the camshaft-side opening. 6. The chain cover according to claim 1 , wherein the first material is a metal material, the third material is a first plastic material, the second material is a second plastic material, and the first plastic material has a lower coefficient of linear expansion than the second plastic material. 7. The chain cover according to claim 1 , wherein the first material is a metal material, the third material is a first plastic material, the second material is a second plastic material, and the first plastic material has a lower water absorbency than the second plastic material.
Assignees
Inventors
Classifications
- F02F7/0065Primary
Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety · CPC title
Two phasers on different camshafts · CPC title
Double overhead camshafts [DOHC] · CPC title
Adaptations for fitting the engine, e.g. front-plates or bell-housings · CPC title
- F01L1/022Primary
Chain drive · CPC title
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Frequently asked questions
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- What does patent US11242820B2 cover?
- A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The cranksha…
- Who is the assignee on this patent?
- Toyota Boshoku Kk
- What technology area does this patent fall under?
- Primary CPC classification F02F7/0065. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 08 2022 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).