Variable Displacement Power Controllers and Applications
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Method and system for storing and reusing hydraulic energy
US9677572B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9677572-B2 |
| Application number | US-201514981977-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2015 |
| Priority date | Dec 29, 2015 |
| Publication date | Jun 13, 2017 |
| Grant date | Jun 13, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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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 method for storing and reusing hydraulic energy in a machine is disclosed. The method includes transferring the hydraulic energy from an actuator to an upstream side of a motor pump via a first valve, during a normal mode. The method includes directing excess hydraulic energy from a downstream side of the motor pump to an accumulator by opening an accumulator valve and closing a bypass valve, during an energy saving mode. The method includes retrieving stored hydraulic energy from the accumulator to the upstream side of the motor pump by opening the accumulator valve, during an energy discharging mode.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for storing and reusing hydraulic energy in a machine, the method comprising: during a normal mode, transferring the hydraulic energy from an actuator to an upstream side of a motor pump via a first valve; during an energy saving mode, directing excess hydraulic energy from a downstream side of the motor pump to an accumulator by opening an accumulator valve and closing a bypass valve; and during an energy discharging mode, retrieving stored hydraulic energy from the accumulator to the upstream side of the motor pump by opening the accumulator valve.
Assignees
Inventors
Classifications
Control of a negative load, i.e. of a load generating hydraulic energy · CPC title
Cross-Sectional Technologies · mapped topic
having accumulator charging devices · CPC title
variable capacity · CPC title
being connected to a pressure source and an output member · CPC title
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Frequently asked questions
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- What does patent US9677572B2 cover?
- A method for storing and reusing hydraulic energy in a machine is disclosed. The method includes transferring the hydraulic energy from an actuator to an upstream side of a motor pump via a first valve, during a normal mode. The method includes directing excess hydraulic energy from a downstream side of the motor pump to an accumulator by opening an accumulator valve and closing a bypass valve,…
- Who is the assignee on this patent?
- Caterpillar Inc
- 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 Jun 13 2017 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).