Drive device and method of controlling the same
US-2024392530-A1 · Nov 28, 2024 · US
Pump control operating system of construction machine
US8984875B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8984875-B2 |
| Application number | US-201013519043-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 23, 2010 |
| Priority date | Dec 24, 2009 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
Official abstract text for this publication.
The present disclosure is a construction machine, such as an excavator, which comprises a plurality of hydraulically driven actuators, in which some of the actuators are provided in a one-to-one pump system where hydraulic pumps are connected to the respective actuators such that a working fluid is supplied from the respective pumps, and the remaining actuators are provided in an auxiliary control valve system where the working fluid is distributed by an auxiliary control valve connected to one or more pumps. When an amount of the working fluid of an actuator associated with the auxiliary control valve is insufficient, the actuator associated with the auxiliary control valve is connected to a pump of the one-to-one pump system to share the pump of the one-to-one pump system.
First claim
Opening claim text (preview).
The invention claimed is: 1. A pump control operating system of a construction machine comprising: a plurality of hydraulically driven actuators, wherein some of the actuators are provided in a one-to-one pump system where hydraulic pumps are connected to the respective actuators such that a working fluid is supplied from the respective pumps, and the remaining actuators are provided in an auxiliary control valve system where the working fluid is distributed by an auxiliary cont…
Assignees
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Classifications
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
- E02F9/2217Primary
Fixed Constructions · mapped topic
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Frequently asked questions
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- What does patent US8984875B2 cover?
- The present disclosure is a construction machine, such as an excavator, which comprises a plurality of hydraulically driven actuators, in which some of the actuators are provided in a one-to-one pump system where hydraulic pumps are connected to the respective actuators such that a working fluid is supplied from the respective pumps, and the remaining actuators are provided in an auxiliary cont…
- Who is the assignee on this patent?
- Jang Dal Sik, Doosan Infracore Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification E02F9/2217. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 24 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).