# US 9,752,538 B2 · Drive arrangement for an assembly of an internal combustion engine, and exhaust-gas recirculation valve

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- Number: US 9,752,538 B2
- Document ID: US9752538B2
- Status: Granted
- Kind: B2
- Application number: 14/770,090
- Filed: 2014-01-21
- Published: 2016-01-07
- Granted: 2017-09-05
- Earliest claimed: 2013-02-27
- Assignees: Pierburg GmbH
- Applicants: Pierburg GmbH
- Inventors: Osman Sari; Norbert Simons; Robert Sabic; Manfred Bohnen
- Web page: https://patentgrep.com/patent/US9752538B2

## CPC

- F02M 26/54: Rotary actuators, e.g. step motors
- F02D 9/1035: {Details of the valve housing}
- F16F 1/373: characterised by having a particular shape {(F16F9/58 takes precedence)}
- F16F 1/376: having projections, studs, serrations or the like on at least one surface ({F16F1/3835} , F16F1/387 take precedence)
- H02K 5/00: Casings; Enclosures; Supports
- H02K 5/24: specially adapted for suppression or reduction of noise or vibrations
- F01M 5/021: {by heating}
- F01P 11/20: concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
- F02N 19/02: Aiding engine start by thermal means, e.g. using lighted wicks
- F02N 19/04: by heating of fluids used in engines
- F02N 19/10: by heating of engine coolants
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W)
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01P: COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K11/00; heat-transfer, heat-exchange or heat-storage materials C09K5/00; {cooling of gas-turbine engines F02C7/12}; heat exchange in general, radiators F28)
- F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR

## Abstract

A drive arrangement for an aggregate of an internal combustion engine includes a drive element, a housing, and an intermediate element. The housing comprises a static receiving part comprising a stop, and a cover fastened on the static receiving part. The cover is configured to bear axially against the stop. The intermediate element is arranged, in a preloaded state, between the drive element and the housing, radially between the cover and the drive element, and, in an elastically deformed state, axially between the drive element and the cover.

## Claims

### Claim 1

A drive arrangement for an aggregate of an internal combustion engine, the drive arrangement comprising:
a drive element;
a housing comprising,
a static receiving part comprising a stop, the static receiving part being configured to have the drive element be arranged therein, and
a cover fastened on the static receiving part, the cover being configured to bear axially against the stop and to be shiftable against the stop; and
an intermediate element arranged,
in a preloaded state, between the drive element and the housing,
radially between the cover and the drive element, and
in an elastically deformed state, axially between the drive element and the cover.

### Claim 2 (depends on 1)

The drive arrangement as recited in claim 1, wherein,
the drive element comprises an axial end,
the intermediate element further comprises a central opening, and
the axial end of the drive element extends through or into the central opening.

### Claim 3 (depends on 2)

The drive arrangement as recited in claim 2, wherein,
the drive element comprises a drive element axial abutment face,
the cover comprises a cover axial abutment face, and
the intermediate element further comprises a disk-shaped portion from which at least one projection extends in an axial direction, the at least one projection being arranged in an elastically deformed state between the cover axial abutment face and the drive element axial abutment face.

### Claim 4 (depends on 3)

The drive arrangement as recited in claim 3, wherein the at least one projection comprises an annular shape.

### Claim 5 (depends on 3)

The drive arrangement as recited in claim 3, wherein the at least one projection is formed as a plurality of nubs distributed along a periphery of the disk-shaped portion.

### Claim 6 (depends on 2)

The drive arrangement as recited in claim 2, wherein the intermediate element further comprises an annular collar which is configured to be elastic, to extend axially, to be inwardly abutted by the drive element, and to be radially outwardly abutted by the cover.

### Claim 7 (depends on 6)

The drive arrangement as recited in claim 6, wherein the annular collar comprises raised portions on its outer peripheral surface distributed along an outer periphery.

### Claim 8 (depends on 6)

The drive arrangement as recited in claim 6, wherein the annular collar is arranged on an outer periphery of the disk-shaped portion.

### Claim 9 (depends on 6)

The drive arrangement as recited in claim 6, wherein,
the cover further comprises a cup-shaped receiving portion formed thereon, and
the annular collar is further configured to surround the central opening and the axial end of the drive element, and to be radially surrounded by the cup-shaped receiving portion.

### Claim 10 (depends on 9)

The drive arrangement as recited in claim 9, wherein the cover with its cup-shaped receiving portion is formed as a deep-drawn component.

### Claim 11 (depends on 1)

The drive arrangement as recited in claim 1, wherein the intermediate element is formed in one piece from an elastomer or from an elastic non-metallic material.

### Claim 12

An exhaust gas recirculation valve comprising:
a housing comprising,
a static receiving part comprising a stop, and
a cover fastened on the static receiving part, the cover being configured to bear axially against the stop and to be shiftable against the stop;
an A-bearing plate formed on the housing;
a transmission;
a passage between an inlet and an outlet;
a valve configured to regulate the passage between the inlet and the outlet;
an intermediate element configured to be elastically deformed so as to have a spring force;
an electric motor serving as a drive element arranged in the static receiving part, the electric motor being configured to drive the valve via the transmission;
wherein,
the elastically deformed intermediate element is arranged axially between the electric motor and the cover, and
the electric motor, via the spring force of the elastically deformed intermediate element, is axially preloaded against the A-bearing plate and is radially supported in the cover by the intermediate element.

### Claim 13 (depends on 12)

The exhaust gas recirculation valve according to claim 12, wherein the exhaust gas recirculation valve comprises a drive arrangement comprising:
the electric motor as the drive element;
the housing; and
the intermediate element.
