# US 2014/0193759 A1 · Evaporator burner for a mobile heating device

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- Number: US 2014/0193759 A1
- Document ID: US20140193759A1
- Status: Published application
- Kind: A1
- Application number: 14/110,241
- Filed: 2012-04-05
- Published: 2014-07-10
- Earliest claimed: 2011-04-30
- Assignees: Webasto SE
- Applicants: Webasto SE
- Inventors: Steffen Weber
- Web page: https://patentgrep.com/patent/US20140193759A1

## CPC

- F23D 3/22: Devices for mixing evaporated fuel with air
- F23C 7/06: for heating the incoming air (arrangements of regenerators and recuperators F23L15/00)
- F23D 3/40: the capillary action taking place in one or more rigid porous bodies
- F23D 11/443: {heated by the main burner flame}
- F23D 14/145: {combustion being stabilised at a screen or a perforated plate}
- F23D 2900/00016: Preventing or reducing deposit build-up on burner parts, e.g. from carbon
- F23D 2900/21002: for use in car heating systems
- F23D: BURNERS
- F23C: METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR (burners F23D)

## Abstract

An evaporator burner for a mobile heating device is provided, with: a combustion chamber surrounding a combustion space for converting fuel with combustion air; an evaporator receiving portion for receiving an evaporator body for evaporating liquid fuel, the evaporator receiving portion being arranged at a rear side of the combustion space; a burner cap which closes the combustion space at the rear side of the evaporator receiving portion and which is connected to the combustion chamber; and a fuel pipe for supplying fuel to the evaporator body, the fuel pipe opening into the evaporator receiving portion. The fuel pipe is thermally coupled to the burner cap and the burner cap is provided with an air heat exchanger for cooling the burner cap over which supplied combustion air is guidable during operation.

## Claims

### Claim 1

An evaporator burner for a mobile heating device, comprising:
a combustion chamber surrounding a combustion space for converting fuel with combustion air;
an evaporator receiving portion for receiving an evaporator body for evaporating liquid fuel, the evaporator receiving portion being arranged at a rear side of the combustion space;
a burner cap which closes the combustion space at the rear side of the evaporator receiving portion and which is connected to the combustion chamber; and
a fuel pipe for supplying fuel to the evaporator body, the fuel pipe opening into the evaporator receiving portion;
wherein the fuel pipe is thermally coupled to the burner cap and the burner cap is provided with an air heat exchanger for cooling the burner cap over which supplied combustion air is guidable during operation.

### Claim 2 (depends on 1)

The evaporator burner according to claim 1, wherein the burner cap is connected to the combustion chamber only via one substantially line-shaped junction.

### Claim 3 (depends on 1)

The evaporator burner according to claim 1, wherein the air heat exchanger comprises a plurality of heat exchanger fins.

### Claim 4 (depends on 1)

The evaporator burner according to claim 1, wherein the air heat exchanger is arranged in the combustion air supply upstream of the combustion space.

### Claim 5 (depends on 1)

The evaporator burner according to claim 1, wherein the burner cap is made from aluminum or from an aluminum alloy.

### Claim 6 (depends on 1)

The evaporator burner according to claim 1, wherein the burner cap and the evaporator receiving portion are formed as separate components.

### Claim 7 (depends on 6)

The evaporator burner according to claim 6, wherein the burner cap and the evaporator receiving portion are arranged spatially spaced from each other.

### Claim 8 (depends on 1)

The evaporator burner according to claim 1, wherein the combustion chamber comprises a plurality of holes for supply of combustion air into the combustion space.