# US 9,518,479 B2 · Turbine housing of an exhaust turbocharger

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- Number: US 9,518,479 B2
- Document ID: US9518479B2
- Status: Granted
- Kind: B2
- Application number: 14/002,822
- Filed: 2012-03-08
- Published: 2013-12-26
- Granted: 2016-12-13
- Earliest claimed: 2011-03-14
- Assignees: BorgWarner Inc.
- Applicants: Volker Joergl; Sylvia Haller; Harald Roclawski
- Inventors: Volker Joergl; Sylvia Haller; Harald Roclawski
- Web page: https://patentgrep.com/patent/US9518479B2

## CPC

- F01D 25/14: Casings modified therefor (double casings F01D25/26)
- F02B 39/005: {Cooling of pump drives}
- F02C 6/12: Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
- F05D 2220/40: in turbochargers
- 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

## Abstract

A turbine housing of the exhaust turbocharger, having an inlet, which is adjoined by a spiral; having an outlet; and having a coolant arrangement; wherein the coolant arrangement has a plurality of coolant ducts, which branch off from an inlet duct section and open into an outlet duct section.

## Claims

### Claim 1

A product comprising turbine housing of an exhaust turbocharger comprising an inlet, which is adjoined by a spiral; an outlet; and a coolant arrangement; wherein the coolant arrangement has a plurality of coolant ducts, which at least substantially branch off from an inlet duct section and open into an outlet duct section.

### Claim 2 (depends on 1)

The product as set forth in claim 1, wherein the coolant ducts are constructed and arranged to be supplied separately with coolant.

### Claim 3 (depends on 1)

The product as set forth in claim 1, wherein the coolant ducts lead to coolant sections which are matched in terms of shape and dimensioning to the respective turbine housing regions to be cooled.

### Claim 4 (depends on 1)

The product as set forth in claim 1, wherein the coolant ducts are arranged at least substantially parallel to one another.

### Claim 5 (depends on 1)

The product as set forth in claim 1, wherein the coolant ducts can be controlled by means of flow control devices.

### Claim 6 (depends on 5)

The product as set forth in claim 5, wherein the control devices are designed as orifices, valves, flaps or the like.

### Claim 7 (depends on 1)

The product as set forth in claim 1, wherein the coolant ducts leading to coolant sections with a high heat input have a lower flow resistance than the coolant lines leading to coolant sections with a lower heat input.

### Claim 8 (depends on 1)

The product as set forth in claim 1, wherein the inlet is provided with a heat shield.

### Claim 9 (depends on 1)

The product as set forth in claim 1, wherein the outlet is provided with a heat shield.

### Claim 10 (depends on 1)

The product as set forth in claim 1, wherein the coolant ducts and the coolant sections are cast into the turbine housing.

### Claim 11 (depends on 1)

The product as set forth in claim 1, wherein the turbine housing material comprises aluminum.