Pressure valve
US-10502338-B2 · Dec 10, 2019 · US
Pilot-operated pressure control valve
US9512930B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9512930-B2 |
| Application number | US-201013510256-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 15, 2010 |
| Priority date | Nov 17, 2009 |
| Publication date | Dec 6, 2016 |
| Grant date | Dec 6, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
A pilot-controlled pressure control valve is disclosed. The pilot-controlled pressure control valve has a pilot control stage, a spool valve, and an overload spring. The pilot control stage includes a pilot control piston which has a pilot control spring. The pilot control spring acts in a closing direction of the pilot control stage. The pilot control spring is supported on the spool valve which can be positioned by a control pressure against the force of the overload spring. The control pressure is configured to set a preload of the pilot control spring. At the same time, in a loaded position, in which the pilot control valve has minimum preload, the spool valve rests against a stop. A preload of the overload spring and a position of the stop can be set independently of one another.
First claim
Opening claim text (preview).
The invention claimed is: 1. A pilot-controlled pressure limiting valve comprising: a main stage; and a pilot-control stage including a pilot control piston that is loaded by a pilot control spring in a closing direction of the pilot control stage, wherein the pilot control spring is supported on a control slide which is configured to be positioned by a control pressure counter to a force of an overdrive spring in order to adjust a preload of the pilot control spring, wherei…
Assignees
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Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
- F16K17/105Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9512930B2 cover?
- A pilot-controlled pressure control valve is disclosed. The pilot-controlled pressure control valve has a pilot control stage, a spool valve, and an overload spring. The pilot control stage includes a pilot control piston which has a pilot control spring. The pilot control spring acts in a closing direction of the pilot control stage. The pilot control spring is supported on the spool valve whi…
- Who is the assignee on this patent?
- Jerchen Adrian, Geiger Thorsten, Graf Ludmilla, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F16K17/105. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 06 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).