Intake control valve and intake apparatus

Patent metadata

Field	Value
Publication number	US-9732666-B2
Application number	US-201514660010-A
Country	US
Kind code	B2
Filing date	Mar 17, 2015
Priority date	Mar 18, 2014
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

An intake control valve includes a valve body being made of resin, the valve body configured to be pivotally mounted to a surge tank of an internal combustion engine, the valve body pivoting between an open position and a closed position to for opening and closing a fluid passage formed at a division wall, the division wall dividing inside of the surge tank into two portions; and a bearing being made of metal, the bearing being integrally provided with a first end portion of the valve body by insert molding when resin molding the resin-made valve body.

First claim

The invention claimed is:

1. An intake control valve, comprising:
a valve body being made of resin, the valve body configured to be pivotally mounted to a surge tank of an internal combustion engine, the valve body pivoting between an open position and a closed position to for opening and closing a fluid passage formed at a division wall, the division wall dividing inside of the surge tank into two portions; and
a bearing being made of metal, the bearing being integrally provided with a first end portion of the valve body by insert molding when resin molding the resin-made valve body, wherein
the bearing is made from a plate-shaped body which is rolled to be formed in a cylindrical shape, the bearing including a pair of facing surfaces facing each other in a circumferential direction; and
the cylindrical bearing including an inner circumferential surface which extends continuously throughout a whole circumference of the bearing in the circumferential direction is formed by a contact of the pair of facing surfaces of the bearing with each other by a molding pressure applied when resin molding the resin-made valve body.

2. The intake control valve according to claim 1 , wherein the bearing includes a resin layer provided at an inner circumferential surface of the bearing, the resin layer being made from a material which includes slidability.

3. The intake control valve according to claim 2 , wherein the resin layer is made of fluororesin.

4. The intake control valve according to claim 1 , wherein the bearing is made from a plate-shaped body which is made of metal, the plate-shaped body being rolled to be formed in a cylindrical shape.

5. The intake control valve according to claim 1 , wherein the bearing includes a flange portion being provided at an outer end portion of the first end portion of the resin-made valve body.

6. The intake control valve according to claim 5 , wherein
the bearing includes a resin layer provided at a surface of the flange portion, the surface extending continuously from an inner circumferential surface of the bearing; and
the resin layer is made from a material which includes sound absorbability.

7. The intake control valve according to claim 1 , wherein the bearing is pivotally supported by a shaft member, the shaft member being fixed to a shaft member fixing portion of the division wall of the surge tank.

8. The intake control valve according to claim 1 , further comprising:
a pivot shaft being made of metal, the pivot shaft being integrally provided with a second end portion of the valve body by insert molding when resin molding the resin-made valve body.

9. An intake apparatus, comprising:
a surge tank being provided at an internal combustion engine;
a valve body being made of resin, the valve body being pivotally mounted to the surge tank of an internal combustion engine, the valve body pivoting between an open position and a closed position to for opening and closing a fluid passage formed at a division wall, the division wall dividing inside of the surge tank into two portions; and
a bearing being made of metal, the bearing being integrally provided with a first end portion of the valve body by insert molding when resin molding the resin-made valve body, wherein
the bearing is made from a plate-shaped body which is rolled to be formed in a cylindrical shape, the bearing including a pair of facing surfaces facing each other in a circumferential direction; and
the cylindrical bearing including an inner circumferential surface which extends continuously throughout a whole circumference of the bearing in the circumferential direction is formed by a contact of the pair of facing surfaces of the bearing with each other by a molding pressure applied when resin molding the resin-made valve body.

10. The intake apparatus according to claim 9 , wherein the bearing includes a resin layer provided at an inner circumferential surface of the bearing, the resin layer being made from a material which includes slidability.

11. The intake apparatus according to claim 10 , wherein the resin layer is made of fluororesin.

12. The intake apparatus according to claim 9 , wherein the bearing is made from a plate-shaped body which is made of metal, the plate-shaped body being rolled to be formed in a cylindrical shape.

13. The intake apparatus according to claim 9 , wherein the bearing includes a flange portion being provided at an outer end portion of the first end portion of the resin-made valve body.

14. The intake apparatus according to claim 13 , wherein
the bearing includes a resin layer provided at a surface of the flange portion, the surface extending continuously from an inner circumferential surface of the bearing; and
the resin layer is made from a material which includes sound absorbability.

15. The intake apparatus according to claim 9 , wherein the bearing is pivotally supported by a shaft member, the shaft member being fixed to a shaft member fixing portion of the division wall of the surge tank.

16. The intake apparatus according to claim 9 , further comprising:
a pivot shaft being made of metal, the pivot shaft being integrally provided with a second end portion of the valve body by insert molding when resin molding the resin-made valve body.

Assignees

• Aisin Seiki

Inventors

• Hasegawa Motonobu
• Ishii Masato
• Kato Takuya
• Sekiguchi Keisuke

Classifications

• F02D9/1085

  Non-organic materials, e.g. metals, alloys, ceramics · CPC title

• F02D9/107

  Manufacturing or mounting details · CPC title

• F02B27/0273

  Flap valves · CPC title

• F02D9/1015

  Details of the edge of the flap, e.g. for lowering flow noise or improving flow sealing in closed flap position · CPC title

• F02B27/0252 Primary

  Multiple plenum chambers or plenum chambers having inner separation walls, e.g. comprising valves for the same group of cylinders · CPC title