Hydraulic circuit, method for operating the same

US8997958B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8997958-B2
Application numberUS-201214115761-A
CountryUS
Kind codeB2
Filing dateApr 27, 2012
Priority dateMay 6, 2011
Publication dateApr 7, 2015
Grant dateApr 7, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A dual clutch transmission, in particular of a motor vehicle, includes a hydraulic circuit for cooling the dual clutch transmission, wherein the hydraulic circuit includes at least one pump for conveying a hydraulic medium flow, at least one cooler for cooling the hydraulic medium flow, and a volume control valve for adjusting the hydraulic medium flow for at least one cooling system associated with clutches of the dual clutch transmission. The volume control valve is designed to convey the hydraulic medium flow in a first switching state to a first cooling system associated with a first of the clutches, and in at least one second switching state to a second cooling system associated with a second of the clutches.

First claim

Opening claim text (preview).

The invention claimed is: 1. A dual clutch transmission comprising clutches and a hydraulic circuit for cooling the dual clutch transmission, wherein the hydraulic circuit comprises: a tank providing a hydraulic medium, at least one pump for conveying a hydraulic medium flow, at least one cooler for cooling the hydraulic medium flow, a volume control valve for adjusting the hydraulic medium flow for at least one cooling system associated with the clutches, wherein the volume…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • F16D25/14Primary

    Mechanical Engineering · mapped topic

  • F16H61/688Primary

    Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US8997958B2 cover?
A dual clutch transmission, in particular of a motor vehicle, includes a hydraulic circuit for cooling the dual clutch transmission, wherein the hydraulic circuit includes at least one pump for conveying a hydraulic medium flow, at least one cooler for cooling the hydraulic medium flow, and a volume control valve for adjusting the hydraulic medium flow for at least one cooling system associated…
Who is the assignee on this patent?
Schuller Dietmar, Fleischmann Hans-Peter, Herold Stephan, and 1 more
What technology area does this patent fall under?
Primary CPC classification F16H61/0206. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 07 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).