Arrangement for attaching a control valve to a flow channel housing of an internal combustion engine

Patent metadata

Field	Value
Publication number	US-10041452-B2
Application number	US-201515121041-A
Country	US
Kind code	B2
Filing date	Feb 9, 2015
Priority date	Feb 26, 2014
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

An arrangement for attaching a control valve to a flow channel housing of an internal combustion engine which includes an insertion housing part which projects into the flow channel housing. The arrangement includes an actuator housing, an actuator arranged in the actuator housing, a housing plate which rests on the flow channel housing, screws, and a collar flange which radially surrounds the housing plate. The insertion housing part extends on a first side of the housing plate and the actuator housing extends on a second opposite side of the housing plate. The collar flange comprises a screw hole pattern arranged thereon and through-holes arranged therein. The screw hole pattern corresponds to a connecting bore pattern of the flow channel housing. The control valve is attached to the flow channel housing via the screws being inserted through the through-holes of the collar flange.

First claim

What is claimed is:

1. An arrangement for attaching a control valve to a flow channel housing of an internal combustion engine, the arrangement comprising:
an insertion housing part configured to project into the flow channel housing;
an actuator housing;
an actuator arranged in the actuator housing;
a housing plate configured to rest on the flow channel housing, the insertion housing part extending on a first side of the housing plate and the actuator housing extending on a second side of the housing plate which is arranged opposite to the first side;
screws; and
a collar flange configured to radially surround the housing plate, the collar flange comprising a screw hole pattern arranged thereon and through-holes arranged therein,
wherein,
the screw hole pattern corresponds to a connecting bore pattern of the flow channel housing,
the control valve is attached to the flow channel housing via the screws being inserted through the through-holes of the collar flange,
the actuator housing comprises an actuator housing part configured to extend from the housing plate, the actuator housing part comprising a circumference,
the housing plate, the insertion housing part and the actuator housing part are provided as a one piece light-metal casting,
the collar flange comprises an inner circumference, and
the circumference of the actuator housing part is smaller than the inner circumference of the collar flange.

2. The arrangement as recited in claim 1 , wherein,
the collar flange comprises a first axial section configured to face toward the flow channel housing, the first axial section comprising an inner circumference,
the collar flange comprises an outer circumference, and
the inner circumference of the first axial section substantially corresponds to the outer circumference of the housing plate.

3. The arrangement as recited in claim 2 , wherein,
the collar flange further comprises a second axial section configured to face away from the flow channel housing and to axially abut on the housing plate, the second axial section comprising an inner circumference, and
the inner circumference of the second axial section is smaller than the inner circumference of the first axial section.

4. The arrangement as recited in claim 2 , wherein,
the first axial section further comprises an axial height,
the housing plate comprises an axial height, and
the axial height of the first axial section is less than the axial height of the housing plate.

5. The arrangement as recited in claim 1 , further comprising:
a sealing arranged between the flow channel housing and the housing plate, the sealing being configured to be elastically deformed by the attachment of the control valve via the screws being inserted through the through holes of the collar flange ( 44 ).

6. The arrangement as recited in claim 5 , wherein the sealing is a metal bead sealing.

7. The arrangement as recited in claim 5 , wherein,
the housing plate comprises an axial end and an axial height,
the sealing comprises an axial height,
the collar flange further comprises screw domes which comprise an axial height oriented toward the flow channel housing as measured from the axial end of the housing plate, the through holes being formed on the screw domes, and
the axial height of the screw domes is less than a sum of the axial height of the housing plate and the axial height of the sealing.

8. The arrangement as recited in claim 7 , wherein,
the axial height of the screw domes is greater than an axial height of a rest of the circumference of the collar flange.

9. The arrangement as recited in claim 1 , wherein the collar flange is non-detachably fastened to the housing plate.

10. The arrangement as recited in claim 1 , wherein the collar flange is provided as a pressure-cast part, a punched part, a stamp-bent part, or an embossed part.

11. The arrangement as recited in claim 1 , wherein the insertion housing part comprises an inlet and an outlet, the arrangement further comprising:
a control body configured to govern a passage between the inlet and the outlet and to be moved by the actuator.

Assignees

• Pierburg Gmbh

Inventors

• Simons Norbert

Classifications

• F16K27/00

  Construction of housing (methods for welding housings B23K); Use of materials therefor · CPC title

• F02M26/65 Primary

  Constructional details of EGR valves · CPC title

• F16K27/02

  of lift valves (for reducing the flow resistance of screw-spindle lift-valves F16K1/06) · CPC title

• F02M26/54

  Rotary actuators, e.g. step motors · CPC title

• F02M26/12

  characterised by means for attaching parts of an EGR system to each other or to engine parts · CPC title