Manual window treatment having a floating chain tensioner
US-12123258-B2 · Oct 22, 2024 · US
Tensioning device with at least two vent elements
US8974333B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8974333-B2 |
| Application number | US-201113703615-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 30, 2011 |
| Priority date | Mar 9, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A tensioning device for a continuous drive element includes a housing, a tensioning piston movably guided in the housing, and a pressure chamber for hydraulic fluid formed between the housing and the tensioning piston, wherein the tensioning piston comprises a vent opening, and a vent channel between the pressure chamber and the vent opening, formed by assembling at least two vent elements, wherein in the one vent element, in the contact surface to the second vent element, separate partial areas of the vent channel are formed by molded groove sections which are connected to each other by transfer grooves molded in the second vent element in the contact surface to the first vent element, such that sections of a main portion of the cross-section of flow of the vent channel are arranged on one side, and sections are arranged on another side of a plane spanned by the contact surfaces.
First claim
Opening claim text (preview).
The invention claimed is: 1. A tensioning device for a continuous drive element, in particular a timing chain of an internal combustion engine, comprising: a housing, a tensioning piston movably guided in the housing, and a pressure chamber for a hydraulic fluid formed between the housing and the tensioning piston, wherein the tensioning piston comprises a vent opening, and a vent channel disposed between the pressure chamber and the vent opening is provided, which is formed by ass…
Assignees
Inventors
Classifications
- F16H7/08Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F16H7/0836Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8974333B2 cover?
- A tensioning device for a continuous drive element includes a housing, a tensioning piston movably guided in the housing, and a pressure chamber for hydraulic fluid formed between the housing and the tensioning piston, wherein the tensioning piston comprises a vent opening, and a vent channel between the pressure chamber and the vent opening, formed by assembling at least two vent elements, whe…
- Who is the assignee on this patent?
- Bauer Christian, Schmid Tobias, Iwis Motorsysteme Gmbh & Co Kg
- What technology area does this patent fall under?
- Primary CPC classification F16H7/08. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 10 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).