# US 9,752,489 B2 · Connector for coupling exhaust manifold with turbocharger housing

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- Number: US 9,752,489 B2
- Document ID: US9752489B2
- Status: Granted
- Kind: B2
- Application number: 14/313,855
- Filed: 2014-06-24
- Published: 2015-04-09
- Granted: 2017-09-05
- Earliest claimed: 2013-10-08
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corp.
- Inventors: Dong Ho Chu
- Web page: https://patentgrep.com/patent/US9752489B2

## CPC

- F01N 13/10: of exhaust manifolds {(with cooling jacket F01N3/046)}
- F01N 13/102: {having thermal insulation}
- F01N 13/1805: {Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body (pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K)}
- F02B 37/02: Gas passages between engine outlet and pump drive, e.g. reservoirs
- F02B 37/025: {Multiple scrolls or multiple gas passages guiding the gas to the pump drive}
- F02B 67/10: of charging or scavenging apparatus
- Y02T 10/12: Improving ICE efficiencies
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A connector for coupling an exhaust manifold with a turbocharger housing may include a manifold coupling part coupled with the exhaust manifold, a housing coupling part integrally coupled with an end of the manifold coupling part and coupled with the turbocharger housing, and a plurality of exhaust gas paths penetrating through the manifold coupling part and the housing coupling part.

## Claims

### Claim 1

A connector for coupling an exhaust manifold with a turbocharger housing, comprising:
a manifold coupling part coupled with the exhaust manifold;
a housing coupling part integrally coupled with an end of the manifold coupling part and coupled with the turbocharger housing; and
a plurality of exhaust gas paths penetrating through the manifold coupling part and the housing coupling part,
wherein the housing coupling part protrudes outwardly from the manifold coupling part, and
wherein an outer stepped surface is formed between the manifold coupling part and the housing coupling part, the outer stepped surface contacting the exhaust manifold, and
wherein an outer side of the housing coupling part is integrally provided with a plurality of outer grooves so as to reduce a temperature of the exhaust gas by increasing heat exchange depending on an increase in a surface area.

### Claim 2 (depends on 1)

The connector according to claim 1,
wherein an end of the housing coupling part is formed to an outer edge more protruding outwards than the exhaust gas path,
wherein an inner stepped surface of the housing coupling part is disposed between the exhaust gas path and the outer edge, and
wherein the inner stepped surface is provided with at least two exhaust gas paths which are spaced apart from each other.

### Claim 3 (depends on 2)

The connector according to claim 2, wherein the inner stepped surface is provided with a plurality of stepped surface holes for relaxing stress concentration and reducing a weight by reducing a deviation in thickness between the exhaust gas paths so as to integrally penetrate through the housing coupling part and the manifold coupling part.

### Claim 4 (depends on 1)

The connector according to claim 1, wherein the exhaust gas paths have a circular shape or an oval shape without a notch so as not to affect a flow of exhaust gas.

### Claim 5 (depends on 1)

The connector according to claim 1,
wherein the manifold coupling part is inserted into a space part between an inskin and an outskin of the exhaust manifold,
wherein the inskin is welded to an inner circumferential surface of the exhaust gas path in a contact state therebetween,
wherein the outskin is welded to an outer surface of the manifold coupling part in a contact state therebetween and an end of the outskin is coupled with the outer stepped surface in a contact state therebetween.