# US 2018/0320641 A1 · Fuel reforming system

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- Number: US 2018/0320641 A1
- Document ID: US20180320641A1
- Status: Published application
- Kind: A1
- Application number: 15/719,355
- Filed: 2017-09-28
- Published: 2018-11-08
- Earliest claimed: 2017-05-08
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Hong Kil BAEK; Seung Woo Lee; Tae Won Lee
- Web page: https://patentgrep.com/patent/US20180320641A1

## CPC

- F02M 26/36: with means for adding fluids other than exhaust gas to the recirculation passage; with reformers
- F01P 3/20: Cooling circuits not specific to a single part of engine or machine (F01P3/22 takes precedence)
- F01P 7/16: by thermostatic control
- F02M 25/12: the apparatus having means for generating such gases (using rays and simultaneously generating ozone F02M27/06)
- F02M 26/06: Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
- F02M 26/28: with liquid-cooled heat exchangers
- F02M 53/043: {with cooling means other than air cooling}
- F01P 2060/16: Outlet manifold
- Y02T 10/12: Improving ICE efficiencies
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A fuel reforming system may include an engine combusting reformed gas to generate mechanical power; an intake line connected to the engine to supply reformed gas and air to the engine; an exhaust line connected to the engine to circulate exhaust gas exhausted from the engine; a fuel reformer provided at an exhaust gas recirculation (EGR) line diverging from the exhaust line, mixing the exhaust gas passing through the EGR line with the fuel and reforming the fuel mixed in the EGR gas; a water temperature controller (WTC) provided at the engine to control coolant cooling the engine; and a radiator radiating a portion of heat generated from the engine to atmosphere through the coolant.

## Claims

### Claim 1

A fuel reforming system, comprising:
an engine combusting reformed gas to generate mechanical power;
an intake line connected to the engine to supply the reformed gas and an air to the engine;
an exhaust line connected to the engine to circulate exhaust gas expelled from the engine;
a fuel reformer provided at an exhaust gas recirculation (EGR) line diverging from the exhaust line, mixing the exhaust gas passing through the EGR line with a fuel and reforming the fuel mixed in EGR gas;
a water temperature controller (WTC) provided at the engine to control coolant cooling the engine; and
a radiator radiating a portion of heat generated from the engine to atmosphere through the coolant,
wherein the fuel reformer includes,
a housing;
a mixing portion provided in the housing and being a space mixing the fuel supplied from outside and the EGR gas;
a fuel injector provided at a side of the housing and supplying the fuel to the mixing portion; and
a coolant entrance and a coolant exit provided around the fuel injector and which the coolant inflows into and outflows from an internal to the fuel reformer.

### Claim 2 (depends on 1)

The fuel reforming system of claim 1, wherein the water temperature controller is provided at a side of an engine exit.

### Claim 3 (depends on 1)

The fuel reforming system of claim 1, wherein the fuel reformer further includes:
an EGR pipe provided at a first side of the mixing portion and through which the EGR gas inflows; and
a reforming catalyst portion provided at a second side of the mixing portion and reforming the fuel and the EGR gas mixed in the mixing portion.

### Claim 4 (depends on 1)

The fuel reforming system of claim 1, wherein a coolant passage is provided to connect an engine exit, the coolant entrance, the coolant exit, the radiator, and an engine entrance in series.

### Claim 5 (depends on 1)

The fuel reforming system of claim 1, further including:
a compressor connected to the intake line and compressing and supplying the reformed gas and the air to the engine; and
a turbine connected to the exhaust line and rotating by the exhaust gas to generate power.

### Claim 6 (depends on 1)

The fuel reforming system of claim 1, wherein
at the EGR line, an EGR cooler cooling the reformed gas and an EGR valve disposed at a rear end portion of the EGR cooler and adjusting a flow rate of the reformed gas are disposed.

### Claim 7 (depends on 6)

The fuel reforming system of claim 6, wherein the fuel reformer is disposed at a front portion of the EGR cooler in the EGR line.