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US-2024200556-A1 · Jun 20, 2024 · US
System for controlling hydraulic pump in construction machine
US9303636B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303636-B2 |
| Application number | US-201013810824-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2010 |
| Priority date | Jul 19, 2010 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump to enhance operability by the driver. The present invention provides the system for controlling the hydraulic pump in the construction machine, which is characterized by detecting the discharge pressure of the hydraulic pump and the operation activity of an operation lever, and comparing the detected discharge pressure of the hydraulic pump and a predetermined pressure value, and when the detected discharge pressure exceeds the predetermined pressure value, the maximum dischargeable flow of the hydraulic pump is reduced in proportion to the difference between the detected pressure and the predetermined pressure value.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hydraulic pump control system for a construction machine, comprising a variable displacement hydraulic pump, at least one hydraulic actuator connected to the hydraulic pump, a spool configured to control hydraulic fluid supplied to the actuator when the spool is shifted by a signal pressure that is supplied to the spool in proportion to a manipulation amount of a manipulation lever, a discharge pressure detection sensor installed in a discharge flow p…
Assignees
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Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Fixed Constructions · mapped topic
- F04B39/00Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9303636B2 cover?
- Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump to enhance operability by the driver. The present invention provides the system for controlling the hydraulic pump in the construction machine, which is characterized by detecting the discharge pressur…
- Who is the assignee on this patent?
- Joung Hea-Gyoon, Lee Sang-Hee, Shin Hung-Ju, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F04B39/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 05 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).