# US 10,767,764 B2 · Turbocharger

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- Number: US 10,767,764 B2
- Document ID: US10767764B2
- Status: Granted
- Kind: B2
- Application number: 15/680,892
- Filed: 2017-08-18
- Published: 2017-11-30
- Granted: 2020-09-08
- Earliest claimed: 2015-03-19
- Assignees: Bayerische Motoren Werke Aktiengesellschaft
- Applicants: Bayerische Motoren Werke Aktiengesellschaft
- Inventors: Manfred Fraenk
- Web page: https://patentgrep.com/patent/US10767764B2

## CPC

- F16K 1/427: {Attachment of the seat to the housing by one or more additional fixing elements}
- F01D 17/105: {by passing part of the fluid}
- F02B 37/183: {Arrangements of bypass valves or actuators therefor}
- F02C 6/12: Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
- F02C 7/20: Mounting or supporting of plant; Accommodating heat expansion or creep
- F05D 2220/40: in turbochargers
- F05D 2230/60: Assembly methods
- F05D 2260/30: Retaining components in desired mutual position
- F05D 2260/36: by a form fit connection, e.g. by interlocking
- F05D 2300/501: Elasticity
- Y02T 10/12: Improving ICE efficiencies
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A turbocharger for a motor vehicle has a housing and a valve seat in the housing. The valve seat is retained in an interlocking manner in the housing by at least one elastic securing element.

## Claims

### Claim 1

A turbocharger for a motor vehicle, comprising:
a housing;
a valve seat arranged in the housing; and
at least one elastic securing element by which the valve seat is held in the housing in an interlocking connection.

### Claim 2 (depends on 1)

The turbocharger according to claim 1, wherein
the interlocking connection between the housing and the valve seat is configured via the elastic securing element so that the elastic securing element is tensioned before forming the interlocking connection of the valve seat and the housing and has the tension at least partly relaxed after forming the interlocking connection.

### Claim 3 (depends on 2)

The turbocharger according to claim 2, wherein
the elastic securing element protrudes into a material recess in the housing.

### Claim 4 (depends on 3)

The turbocharger according to claim 3, wherein the material recess is ring shaped.

### Claim 5 (depends on 3)

The turbocharger according to claim 3, wherein the elastic securing element is a snap ring.

### Claim 6 (depends on 2)

The turbocharger according to claim 2, wherein
the elastic securing element protrudes into a material recess on the valve seat.

### Claim 7 (depends on 6)

The turbocharger according to claim 6, wherein the material recess is ring shaped.

### Claim 8 (depends on 6)

The turbocharger according to claim 6, wherein the elastic securing is a snap ring.

### Claim 9 (depends on 2)

The turbocharger according to claim 2, wherein the elastic securing element is a snap ring.

### Claim 10 (depends on 1)

The turbocharger according to claim 1, wherein
the housing has an annular end stop against which an end face of the valve seat presses.

### Claim 11 (depends on 1)

The turbocharger according to claim 1, further comprising:
a bypass channel in the housing, wherein
the valve seat is arranged in the bypass channel.

### Claim 12

A method of manufacturing a turbocharger having a housing and a valve seat arranged in the housing, the method comprising the acts of:
providing the valve seat with an elastic securing element, the elastic securing element being tensioned for connecting the valve seat and the housing;
introducing the valve seat having the tensioned elastic securing element into the housing, wherein the elastic securing element at least partly relaxes the tension as soon as the valve seat reaches an end installation position in the housing.