Air intake device

Patent metadata

Field	Value
Publication number	US-10240653-B2
Application number	US-201715631938-A
Country	US
Kind code	B2
Filing date	Jun 23, 2017
Priority date	Jun 24, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

An air intake device includes: an air intake valve provided so as to change intake air by rotation of a rotation shaft; an actuator which is a driving source for rotating and driving the rotation shaft of the air intake valve; a first link member rotatable by a predetermined operation angle about the rotation shaft; a second link member rotatably connected to the first link member; a connection member which connects the first link member and the second link member so as to be rotatable to each other; and a biasing member whose one side end is engaged to the first link member and whose other side end is engaged to the second link member or the connection member to bias the first link member and the second link member or the connection member so that rattling between the first link member and the second link member is suppressed.

First claim

What is claimed is:

1. An air intake device, comprising:
an air intake valve which is provided so as to change intake air by rotation of a rotation shaft;
an actuator which is a driving source for rotating and driving the rotation shaft of the air intake valve;
a first link member rotatable by a predetermined operation angle about the rotation shaft;
a second link member rotatably connected to the first link member;
a connection member which connects the first link member and the second link member so as to be rotatable to each other; and
a biasing member whose one side end is engaged to the first link member and whose other side end is engaged to the second link member or the connection member to bias the first link member and the second link member or the connection member so that rattling between the first link member and the second link member is suppressed.

2. The air intake device according to claim 1 ,
wherein the rotation shaft includes a drive side rotation shaft which is rotated by driving force of the actuator,
the first link member includes a drive side link member which is rotated by the drive side rotation shaft,
the connection member includes a first connection member which connects the drive side link member and the second link member, and
the second link member is rotated via the first connection member according to rotation of the drive side link member, in a state where the second link member or the first link member is biased by the biasing member with respect to the drive side link member in a direction along a rotation direction of the drive side link member.

3. The air intake device according to claim 2 ,
wherein the rotation shaft further includes a driven side rotation shaft which is rotated according to the rotation of the drive side rotation shaft,
the first link member further includes a driven side link member for rotating the driven side rotation shaft according to the rotation of the second link member,
the connection member includes a second connection member which connects the driven side link member and the second link member to each other, and
the driven side link member and the driven side rotation shaft are rotated via the second connection member according to the rotation of the second link member, in a state where the second link member or the second connection member is biased by the biasing member with respect to the driven side link member in a direction along a rotation direction of the driven side link member.

4. The air intake device according to claim 1 ,
wherein the connection member is a pin member,
the biasing member is a torsion coil spring, and
in a state where one side end of the torsion coil spring is engaged to the first link member and the other side end of the torsion coil spring is engaged to the pin member, the other side end of the torsion coil spring biases the pin member in a direction along a rotation direction of the first link member.

5. The air intake device according to claim 2 ,
wherein the connection member is a pin member,
the biasing member is a torsion coil spring, and
in a state where one side end of the torsion coil spring is engaged to the first link member and the other side end of the torsion coil spring is engaged to the pin member, the other side end of the torsion coil spring biases the pin member in a direction along a rotation direction of the first link member.

6. The air intake device according to claim 3 ,
wherein the connection member is a pin member,
the biasing member is a torsion coil spring, and
in a state where one side end of the torsion coil spring is engaged to the first link member and the other side end of the torsion coil spring is engaged to the pin member, the other side end of the torsion coil spring biases the pin member in a direction along a rotation direction of the first link member.

7. The air intake device according to claim 1 ,
wherein the biasing member is a torsion coil spring, and
in a state where one side end of the torsion coil spring is engaged to the first link member and the other side end of the torsion coil spring is engaged to the second link member, the other side end of the torsion coil spring biases the second link member in the direction along the rotation direction of the first link member.

8. The air intake device according to claim 2 ,
wherein the biasing member is a torsion coil spring, and
in a state where one side end of the torsion coil spring is engaged to the first link member and the other side end of the torsion coil spring is engaged to the second link member, the other side end of the torsion coil spring biases the second link member in the direction along the rotation direction of the first link member.

9. The air intake device according to claim 3 ,
wherein the biasing member is a torsion coil spring, and
in a state where one side end of the torsion coil spring is engaged to the first link member and the other side end of the torsion coil spring is engaged to the second link member, the other side end of the torsion coil spring biases the second link member in the direction along the rotation direction of the first link member.

10. The air intake device according to claim 3 ,
wherein the air intake valve includes a first air intake valve provided so as to change intake air of a cylinder row on one side in the V-type internal combustion engine and a second air intake valve provided so as to change intake air of a cylinder row on the other side in the V-type internal combustion engine,
the drive side rotation shaft rotates the first air intake valve by a predetermined operation angle by the driving force of the actuator and the driven side rotation shaft rotates the second air intake valve by a predetermined operation angle via the drive side link member, the first connection member, the second link member, the second connection member, and the driven side link member according to the rotation of the drive side rotation shaft, and
the biasing member includes a first biasing member which biases the second link member or the first connection member in a direction along a rotation direction of the drive side link member and a second biasing member which biases the second link member or the second connection member in a direction along a rotation direction of the driven side link member.

11. The air intake device according to claim 4 ,
wherein the first link member includes a first engagement portion to which one side end of the torsion coil spring is engaged.

12. The air intake device according to claim 5 ,
wherein the first link member includes a first engagement portion to which one side end of the torsion coil spring is engaged.

13. The air intake device according to claim 6 ,
wherein the first link member includes a first engagement portion to which one side end of the torsion coil spring is engaged.

14. The air intake device according to claim 7 ,
wherein the second link member includes a second engagement portion to which the other side end of the torsion coil spring is engaged.

15. The air intake device according to claim 8 ,
wherein the second link member includes a second engagement portion to which the other side end of the torsion coil spring is engaged.

16. The air intake device according to claim 9 ,
wherein the second link member includes a second engagement portion to which the other side end of the torsion coil spring is engaged.

17. The air intake device according to claim 3 ,
wherein the drive side link member includes a long hole into which the first connection memb

Assignees

• Aisin Seiki

Inventors

• MITSUOKA Mitsuki
• Ishihara Hiromitsu

Classifications

• F02M35/116 Primary

  for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft · CPC title

• F02M35/10091

  characterised by details of intake ducts: shapes; connections; arrangements (ducts within or on the plenum chamber F02M35/10039) · CPC title

• F02M35/1085

  the combustion chamber having multiple intake valves (modifying induction systems for imparting a rotation to the charge in the cylinder and having multiple air inlets F02B31/08; shape or arrangement of intake or exhaust channels in cylinder heads F02F1/42) · CPC title

• F16F1/041 Primary

  with means for modifying the spring characteristics (F16F1/12, F16F3/06 take precedence; fluid regulation of coil spring characteristics in vehicle suspensions B60G17/0272) · CPC title

• Y02T10/146

  Cross-Sectional Technologies · mapped topic