Throttle valve

Patent metadata

Field	Value
Publication number	US-10018281-B2
Application number	US-201615184530-A
Country	US
Kind code	B2
Filing date	Jun 16, 2016
Priority date	Jun 16, 2016
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A throttle valve is provided, including a throttle valve body, a valve plug, a hollow seal, a cover, a spring, and a bushing. A flow path is formed in the throttle valve body. The valve plug is disposed in the throttle valve body. The degree of opening of the flow path is modified by rotating the valve plug. The hollow seal is disposed in the throttle valve body. The hollow seal abuts the valve plug. The cover is connected to the throttle valve body. An outlet is formed on the cover, the cover comprises a cover flange, and the cover flange surrounds the outlet. The spring abuts the cover flange to apply an elastic force to the hollow seal for tightly contacting the hollow seal with the valve plug. The spring is telescoped on the bushing, and a first end of the bushing pushes the hollow seal.

First claim

What is claimed is:

1. A throttle valve, comprising:
a throttle valve body, wherein a flow path is formed in the throttle valve body;
a valve plug, disposed in the throttle valve body, wherein a degree of opening of the flow path is modified by rotating the valve plug around a plug axis;
a hollow seal, disposed in the throttle valve body, wherein the hollow seal abuts the valve plug in a path direction, wherein the path direction is perpendicular to the plug axis;
a cover, connected to the throttle valve body, wherein an outlet is formed on the cover, the cover comprises a cover flange, and the cover flange surrounds the outlet;
a spring, which abuts the cover flange to apply an elastic force to the hollow seal for tightly contacting the hollow seal with the valve plug; and
a bushing, wherein the spring is telescoped on the bushing, and a first end of the bushing pushes the hollow seal,
wherein the bushing comprises a bushing flange, an end of the spring abuts the cover flange, and the other end of the spring abuts the bushing flange, and
wherein the bushing comprises a second end, and the second end passes through the outlet.

2. The throttle valve as claimed in claim 1 , wherein the bushing flange is formed on the first end.

3. The throttle valve as claimed in claim 1 , wherein the bushing comprises a bushing through hole, and an aperture of the bushing through hole is smaller than an aperture of the outlet.

4. The throttle valve as claimed in claim 1 , wherein the bushing comprises aluminum alloy.

5. The throttle valve as claimed in claim 1 , wherein the throttle valve body comprises an inlet, and the inlet and the outlet are located on a straight line.

Assignees

• Vanguard Int Semiconduct Corp

Inventors

• Yang Reunn-Chang

Classifications

• F16K27/12 Primary

  Covers for housings · CPC title

• F16K5/0471

  between housing and plug · CPC title

• F16K5/181

  with the housing or parts of the housing mechanically pressing the seals against the plugs · CPC title

• F16K5/0407

  with particular plug arrangements, e.g. particular shape or built-in means · CPC title

• F16K27/065

  with cylindrical plugs · CPC title