Measurement method for steam valve and measurement device for steam valve
US-2024344631-A1 · Oct 17, 2024 · US
Valve device and manufacturing method for the same
US9309991B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9309991-B2 |
| Application number | US-201314015109-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2013 |
| Priority date | Oct 26, 2012 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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- Title
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Abstract
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A control unit generates a control signal for controlling an actuator to manipulate a valve element and to control a quantity of flow in a passage according to both an opening position of the valve element and a predetermined correlation between the opening position and the quantity of flow. The control unit includes a storage unit storing an error-characteristic function and a compensation unit to compensate the control signal according to the error-characteristic function. An actual correlation between the opening position and the quantity of flow is actually measured separately from the predetermined correlation. The error-characteristic function is an approximation of a relation between an opening position x in the predetermined correlation and an opening position y in the actual correlation at a same quantity of flow, which are calculated beforehand with reference to the actual correlation and the predetermined correlation.
First claim
Opening claim text (preview).
What is claimed is: 1. A manufacturing method for a valve device, the valve device comprising: a valve element configured to open and close a passage to variably control a quantity of flow of fluid through the passage; an actuator configured to manipulate the valve element; a sensor configured to detect an opening position of the valve element; and a control unit configured to generate a control signal for controlling the actuator according to both an output of the sensor an…
Assignees
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Classifications
- F16K37/0083Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · 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 US9309991B2 cover?
- A control unit generates a control signal for controlling an actuator to manipulate a valve element and to control a quantity of flow in a passage according to both an opening position of the valve element and a predetermined correlation between the opening position and the quantity of flow. The control unit includes a storage unit storing an error-characteristic function and a compensation uni…
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification F16K37/0083. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 12 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).