Throttle valve
US-2016116918-A1 · Apr 28, 2016 · US
Valve device and poppet
US2016312902A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016312902-A1 |
| Application number | US-201615138686-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 26, 2016 |
| Priority date | Apr 27, 2015 |
| Publication date | Oct 27, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A valve device includes: a poppet that is formed in a hollow shaft shape except for a leading end, has a tapered closure part at the leading end and a side hole passing through a wall of the hollow shaft-shaped part, and rotates around a shaft center thereof during opening and closing actions; and a valve seat having a sloped seat surface with which the closure part of the poppet comes into contact when closing the valve device. The closure part of the poppet or the seat surface of the valve seat, whichever has a higher hardness, has a cut mark of the opposite direction from a direction of rotation of the poppet around the shaft center that occurs during the valve closing action.
First claim
Opening claim text (preview).
What is claimed is: 1 . A valve device comprising: a poppet that is formed in a hollow shaft shape except for a leading end, has a tapered closure part at the leading end and a side hole passing through a wall of the hollow shaft-shaped part, and rotates around a shaft center thereof during opening and closing actions; and a valve seat having a sloped seat surface with which the closure part of the poppet comes into contact when closing the valve device, wherein the closure part of the poppet or the seat surface of the valve seat, whichever has a higher hardness, has a cut mark of the opposite direction from a direction of rotation of the poppet around the shaft center that occurs during the valve closing action. 2 . The valve device according to claim 1 , wherein the side hole is either a right side hole perpendicular to the shaft center or an oblique hole oblique to the shaft center. 3 . The valve device according to claim 2 , wherein the oblique hole is composed of a first hole perpendicular to the shaft center, and a second oblique hole that intersects with the first hole and inclines toward the closure part while extending toward an outer periphery of the poppet. 4 . The valve device according to claim 1 , wherein the poppet has the two side holes, and is configured such that a force couple is exerted by a fluid flowing through the two side holes. 5 . A poppet that is formed in a hollow shaft shape except for a leading end, has a sloped surface at the leading end and a side hole passing through a wall of the hollow shaft-shaped part, and rotates around a shaft center thereof when there is a fluid flowing through the side hole, the poppet comprising, in the sloped surface, a cut mark of the opposite direction from a direction of rotation of the poppet around the shaft center that occurs when the poppet moves in a direction toward the leading end. 6 . The poppet according to claim 5 , wherein the side hole is either a right side hole perpendicular to the shaft center or an oblique hole oblique to the shaft center. 7 . The poppet according to claim 6 , wherein the oblique hole is composed of a first hole perpendicular to the shaft center, and a second oblique hole that intersects with the first hole and inclines toward the leading end while extending toward an outer periphery of the poppet. 8 . The poppet according to claim 5 , wherein the poppet has the two side holes formed therein, and is configured such that a force couple is exerted by a fluid flowing through the two side holes.
Assignees
Inventors
Classifications
- F16K1/385Primary
contacting in the closed position, over a substantial axial length, a seat surface having the same inclination · CPC title
for monitoring or controlling fuel cells · CPC title
in direct contact with the pressure vessel · CPC title
comprising a valve · CPC title
Check-valves or non-return valves · CPC title
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Frequently asked questions
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- What does patent US2016312902A1 cover?
- A valve device includes: a poppet that is formed in a hollow shaft shape except for a leading end, has a tapered closure part at the leading end and a side hole passing through a wall of the hollow shaft-shaped part, and rotates around a shaft center thereof during opening and closing actions; and a valve seat having a sloped seat surface with which the closure part of the poppet comes into con…
- Who is the assignee on this patent?
- Jtekt Corp, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16K1/385. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Oct 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).