Variable camshaft timing assembly
US-2020165943-A1 · May 28, 2020 · US
Dual cam phaser
US10823017B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10823017-B2 |
| Application number | US-201916706104-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2019 |
| Priority date | Dec 13, 2018 |
| Publication date | Nov 3, 2020 |
| Grant date | Nov 3, 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 dual cam phaser for an internal combustion engine, the dual cam phaser including a stator which is drivable by a crankshaft; a rotor which rotatable relative to the stator; a first camshaft; a second camshaft; and a mechanical switching element which is connected to the first camshaft and the second camshaft, wherein the first camshaft and the second camshaft are arranged coaxial with one another, wherein the first camshaft or the second camshaft is connected with the rotor to rotate together with the rotor, and wherein a phase difference between the first camshaft and the second is adjustable by the mechanical switching element.
First claim
Opening claim text (preview).
What is claimed is: 1. A dual cam phaser for an internal combustion engine, the dual cam phaser comprising: a stator configured to be driven by a crankshaft; a rotor configured to rotate relative to the stator; a first camshaft; a second camshaft; a mechanical switching element connected to the first camshaft and the second camshaft, wherein the first camshaft and the second camshaft are coaxially arranged, wherein the first camshaft or the second camshaft is connected to the rotor so as to rotate together with the rotor, wherein the mechanical switching element is configured to adjust a phase difference between the first camshaft and the second camshaft, wherein the mechanical switching element includes a first adjusting element, a second adjusting element, and a third adjusting element, wherein the first adjusting element, the second adjusting element, and the third adjusting element pivot about a common pivot joint, wherein the first adjusting element is connected to the first camshaft, the second adjusting element is connected to the second camshaft, and the third adjusting element is connected to a connection component that is fixed at the stator; and a stator connection element which connects the connection component to the stator, wherein the third adjusting element is connected to the connection component via the stator connection element. 2. The dual cam phaser according to claim 1 , wherein the mechanical switching element is configured to switch between a first switching position, in which the first camshaft is in a first phase position relative to the second camshaft, and a second switching position, in which the first camshaft is in a second phase position relative to the second camshaft. 3. The dual cam phaser according to claim 1 , wherein the first camshaft is an inlet camshaft and the second camshaft is an outlet camshaft. 4. The dual cam phaser according to claim 1 , wherein the mechanical switching element connects to the first camshaft and the second camshaft such that the first camshaft and the second camshaft rotate in opposite directions relative to each other as the rotor rotates. 5. The dual cam phaser according to claim 1 , wherein the connection component is a housing or a cover of the dual cam phaser. 6. The dual cam phaser according to claim 1 , wherein the second camshaft is connected to the rotor via a rotor connection element, and wherein the second adjusting element is connected to the second camshaft via the rotor connection element.
Assignees
Inventors
Classifications
Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod · CPC title
Two phasers on one camshaft · CPC title
- F01L1/3442Primary
using hydraulic chambers with variable volume to transmit the rotating force · CPC title
Camshafts position or phase sensors · CPC title
Phaser return springs · 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 US10823017B2 cover?
- A dual cam phaser for an internal combustion engine, the dual cam phaser including a stator which is drivable by a crankshaft; a rotor which rotatable relative to the stator; a first camshaft; a second camshaft; and a mechanical switching element which is connected to the first camshaft and the second camshaft, wherein the first camshaft and the second camshaft are arranged coaxial with one ano…
- Who is the assignee on this patent?
- ECO Holding 1 GmbH
- What technology area does this patent fall under?
- Primary CPC classification F01L1/3442. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 03 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).