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Control valve, in particular for metering in a fluid for a delivery pump which is arranged downstream
US9719475B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9719475-B2 |
| Application number | US-201514859793-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2015 |
| Priority date | Dec 1, 2009 |
| Publication date | Aug 1, 2017 |
| Grant date | Aug 1, 2017 |
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Abstract
Official abstract text for this publication.
A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid can flow back through the flow channel at least temporarily counter to the opening direction of the valve element. Upstream of the valve element as viewed in the backflow direction, the flow channel has a fluidically active shield which keeps the backflow at least partially free of a face of the valve element.
First claim
Opening claim text (preview).
What is claimed is: 1. A control valve, in particular for metering a fluid for a delivery pump arranged downstream, having a flow channel, an axially movable valve needle, and a valve element that can be urged in an opening direction by the valve needle and is disposed in the flow channel, and when the valve element is actuated in the opening direction by the valve needle, the flow channel can at least temporarily experience a backflow of the fluid through it counter to the opening…
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Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9719475B2 cover?
- A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid…
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- What technology area does this patent fall under?
- Primary CPC classification F02M63/0031. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 01 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).