Hydraulic transmission device allowing energy recovery

US9464641B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9464641-B2
Application numberUS-201213362383-A
CountryUS
Kind codeB2
Filing dateJan 31, 2012
Priority dateJan 31, 2011
Publication dateOct 11, 2016
Grant dateOct 11, 2016

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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.

An hydraulic transmission device ( 10,110 ) comprising an hydraulic motor ( 16, 18 ), an hydraulic pump ( 20 ), a fluid accumulator ( 22 ). The device has an accumulator-driven mode, an energy-recovery mode, a pump-driven mode. In the pump-driven mode, the pump supplies the motor with fluid drawn from an unpressurized reservoir; and in the energy-recovery mode, the motor is supplied by the pump drawing fluid from said reservoir. An assembly ( 1 ) comprising a device ( 10,110 ) as defined above, a shaft ( 11, 13 ), and a mass ( 12, 14 ) mounted eccentrically on the shaft.

First claim

Opening claim text (preview).

The invention claimed is: 1. An hydraulic transmission device, comprising: at least one hydraulic rotary motor; the at least one hydraulic rotary motor exchanging fluid via two main ports, namely one feed port and one exhaust port; a hydraulic pump; a fluid accumulator, capable of storing and delivering fluid under pressure; the device being capable of operating: in a pump-driven mode, in which the pump supplies fluid under pressure to the at least one hydraulic rotary mo…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • F15B1/024Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Operations & Transport · mapped topic

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Frequently asked questions

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What does patent US9464641B2 cover?
An hydraulic transmission device ( 10,110 ) comprising an hydraulic motor ( 16, 18 ), an hydraulic pump ( 20 ), a fluid accumulator ( 22 ). The device has an accumulator-driven mode, an energy-recovery mode, a pump-driven mode. In the pump-driven mode, the pump supplies the motor with fluid drawn from an unpressurized reservoir; and in the energy-recovery mode, the motor is supplied by the pump…
Who is the assignee on this patent?
Heren Jean, Poclain Hydraulics Ind
What technology area does this patent fall under?
Primary CPC classification F15B1/024. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Oct 11 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).