Intake module of a fresh air system

Patent metadata

Field	Value
Publication number	US-10196990-B2
Application number	US-201615557730-A
Country	US
Kind code	B2
Filing date	Mar 7, 2016
Priority date	Mar 13, 2015
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

An intake module of a fresh air system for an internal combustion engine may include a housing having a plurality of openings through which fresh air is flowable, and a control device for controlling a cross-section of at least one of the openings. The control device may include at least one control staff and at least one control valve arranged on the control shaft in a rotationally fixed manner for the at least one opening. The control shaft may be mounted on the housing by at least one bearing bracket such that the control shaft is rotatable about a rotational axis. The housing may have at least one bearing receiving portion for receiving the bearing bracket. The bearing receiving portion may have an insertion opening through which the bearing bracket may be inserted in an insertion direction oriented perpendicular to the rotational axis. The bearing bracket may have two outer surfaces facing away from one another in a transverse direction running perpendicular to the rotational axis and to the insertion direction. On each outer surface, the bearing bracket may have at least two positioning blocks projecting therefrom and spaced apart from one another in the insertion direction. The bearing receiving portion may have a guide contour for each positioning block for aligning the bearing bracket in a longitudinal direction running parallel to the rotational axis, and in the transverse direction.

First claim

The invention claimed is:

1. An intake module of a fresh air system for an internal combustion engine, comprising:
a housing having a plurality of openings through which fresh air is flowable;
a control device for controlling a cross section, through which flow can pass, of at least one of the openings;
wherein the control device has at least one control shaft and at least one control valve, which is arranged on the at least one control shaft in a rotationally fixed manner, for the at least one opening;
wherein the at least one control shaft is mounted on the housing by at least one bearing bracket such that the at least one control shaft is rotatable about a rotational axis;
wherein the housing has at least one bearing receiving portion for receiving the at least one bearing bracket;
wherein the at least one bearing receiving portion has an insertion opening;
wherein the at least one bearing bracket is inserted in an insertion direction, which is oriented perpendicular to the rotational axis, through the insertion opening into the at least one bearing receiving portion;
wherein the at least one bearing bracket has on an outside thereof two outer surfaces, which face away from one another with respect to a transverse direction, which runs perpendicular to the rotational axis and perpendicular to the insertion direction;
wherein, on each outer surface, the at least one bearing bracket has at least two positioning blocks projecting therefrom in the transverse direction and spaced apart from one another with a space therebetween in the insertion direction;
wherein the at least one bearing receiving portion has on an inside thereof a guide contour, which is complementary thereto, for each positioning block for aligning the at least one bearing bracket in a longitudinal direction, which runs parallel to the rotational axis, and in the transverse direction.

2. The intake module according to claim 1 , wherein the at least one bearing bracket, on the outer surfaces, is in contact with the housing only via the positioning blocks.

3. The intake module according to claim 1 , wherein the at least one bearing bracket in at least one of the longitudinal direction, the insertion direction, and the transverse direction is in contact with the housing only via the positioning blocks.

4. The intake module according to claim 1 , wherein at least one of:
each positioning block has a length, which is measured parallel to the longitudinal direction and which is smaller than a length of the at least one bearing bracket, which is measured parallel to the longitudinal direction; and
each positioning block has a height, which is measured parallel to the insertion direction and which is smaller than a height of the at least one bearing bracket, which is measured parallel to the insertion direction.

5. The intake module according to claim 1 , wherein at least one of:
each positioning block is spaced apart from two longitudinal ends of the at least one bearing bracket, which are spaced apart from one another in the longitudinal direction; and
each positioning block is spaced apart from two other ends of the at least one bearing bracket, which are spaced apart from one another in the insertion direction.

6. The intake module according to claim 1 , wherein each positioning block has one guide surface, which runs at a right angle to the transverse direction and faces away from the at least one bearing bracket, at least one guide surface, which runs at a right angle to the insertion direction and leads in the insertion direction, and two guide surfaces, which run at right angles to the longitudinal direction and which face away from one another.

7. The intake module according to claim 1 , wherein:
each positioning block has two flat longitudinal positioning surfaces, which face away from one another with respect to the longitudinal direction and which extend parallel to one another and perpendicular to the longitudinal direction; and
the at least one bearing receiving portion on the inside thereof has two flat longitudinal guide surfaces, which face one another with respect to the longitudinal direction and which extend parallel to one another and perpendicular to the longitudinal direction and against which one of the longitudinal positioning surfaces of each positioning block abuts in a flat manner.

8. The intake module according to claim 1 , wherein:
each positioning block has a flat transverse positioning surface, which extends perpendicular to the transverse direction; and
the at least one bearing receiving portion has on the inside thereof a flat transverse guide surface for each positioning block, which extends perpendicular to the transverse direction and against which the transverse positioning surface of each positioning block abuts in a flat manner.

9. The intake module according to claim 1 , wherein:
on each outer surface, the at least two positioning blocks are aligned relative to one another in the insertion direction; and
the one of the at least two positioning blocks that leads in the insertion direction is smaller than the other of the at least two positioning blocks that trails in the insertion direction.

10. The intake module according to claim 9 , wherein the one of the at least two positioning blocks is arranged between the at least one control shaft and the other of the at least two positioning blocks in the insertion direction.

11. The intake module according to claim 1 , wherein at least one of the positioning blocks at each outer surface has a flat stop surface, which leads in the insertion direction and which extends perpendicular to the insertion direction and which abuts flat against a flat counter stop surface, which is embodied on the inside of the at least one bearing receiving portion.

12. The intake module according to claim 1 , wherein:
the at least one bearing bracket has a first bearing part and a second bearing part;
the first bearing part has a first bearing section against which the at least one control shaft abuts with a first circumferential section;
the second bearing part has a second bearing section, which is located opposite the first bearing section and against which the at least one control shaft abuts with a second circumferential section, which is located opposite the first circumferential section;
each of the first bearing part and the second bearing part has a respective inner surface, the inner surface of the first bearing part facing the inner surface of the second bearing part with respect to the transverse direction, and at least one flat positioning surface, which extends perpendicular to the transverse direction; and
the at least one flat positioning surface of the first bearing part abuts flat against the at least one flat positioning surface of the second bearing part.

13. The intake module according to claim 12 , wherein:
the first bearing part has, on the inner surface thereof, at least one guide pin, which projects in the transverse direction; and
the second bearing part has, on the inner surface thereof, at least one guide opening, which is oriented in the transverse direction and which is complementary to the at least one guide pin, and into which the at least one guide pin is inserted in the transverse direction.

14. The intake module according to claim 1 , wherein
the housing has at least one inlet opening for fresh air and a flange section, which has the plurality of openings, which form outlet openings for fresh air.

15. The intake module according to claim 14 , wherein
the at least one bearing receiving portion is embodied on a connection side of

Assignees

• Mahle Int Gmbh

Inventors

• Dettinger Marco
• Endress Mathias
• Gueth Wolfgang

Classifications

• F02D9/1095 Primary

  Rotating on a common axis, e.g. having a common shaft · CPC title

• F02M35/10039 Primary

  Intake ducts situated partly within or on the plenum chamber housing · CPC title

• F02M35/10255 Primary

  Arrangements of valves; Multi-way valves (F02M35/10032 takes precedence; valves in the plenum chamber F02M35/10065; check valves F02M35/10275) · CPC title

• F02M35/10078

  Connections of intake systems to the engine · CPC title

• F02D9/106

  Sealing of the valve shaft in the housing, e.g. details of the bearings · CPC title