Evaporator assembly for mobile heating devices

Patent metadata

Field	Value
Publication number	US-11530813-B2
Application number	US-201917055216-A
Country	US
Kind code	B2
Filing date	May 9, 2019
Priority date	May 15, 2018
Publication date	Dec 20, 2022
Grant date	Dec 20, 2022

Abstract

An evaporator subassembly for mobile heating devices, in particular for a motor vehicle, having the following: an evaporator, an evaporator receptacle which is constructed to receive the evaporator, a glow plug and a combustion chamber, wherein the glow plug extends or is constructed to be extensible obliquely relative to a main surface of the evaporator into the combustion chamber.

First claim

The invention claimed is:

1. An evaporator subassembly for mobile heating devices, in particular for a motor vehicle, having the following:
an evaporator;
an evaporator receptacle which is constructed to receive the evaporator, wherein a main member of the evaporator is disc-shaped and/or plate-shaped;
a glow plug and
a combustion chamber,
wherein at least a portion of the glow plug extends or is constructed to be extensible into the combustion chamber angled obliquely relative to a main surface of the evaporator and at a position offset from the main surface of the evaporator main surface, wherein a free spatial portion is located between the main surface of the evaporator and the at least a portion of the glow plug in the combustion chamber.

2. The evaporator subassembly according to claim 1 , wherein at least one central projection projects from a main surface of the evaporator.

3. The evaporator subassembly according to claim 2 , wherein a cross-sectional profile of the projection of the evaporator is constructed to be polygonal.

4. The evaporator subassembly according to according to claim 2 , wherein the projection of the evaporator is constructed as a ring.

5. The evaporator subassembly according to according to claim 2 , wherein the projection is an integral component of the evaporator.

6. The evaporator subassembly according to claim 1 wherein a one-stage, two-stage or multi-stage evaporator dome is provided between the evaporator receptacle and a fuel supply line.

7. The evaporator subassembly according to claim 1 , wherein the glow plug is received in the evaporator receptacle via a glow plug bush.

8. Evaporator subassembly according to claim 7 , wherein the glow plug is fixed in the glow plug bush by a bent plate member, and/or a thread and/or a press-fit.

9. The evaporator subassembly according to claim 1 , wherein the evaporator comprises a porous nonwoven material, and/or a textile moulded fibre member, and/or a porous heat-resistant metal.

10. The evaporator subassembly according to claim 1 , further comprising a flame detector which forms an integral component with the glow plug.

11. The evaporator subassembly according to claim 1 , wherein the evaporator receptacle has at least one combustion air perforation.

12. A motor vehicle, comprising an evaporator subassembly according claim 1 .

13. Method for producing an evaporator subassembly according to claim 1 , comprising the following steps:
forming the evaporator receptacle;
providing the evaporator; and
receiving the evaporator in the evaporator receptacle.

14. Method for production according to claim 13 , wherein a projection is formed extending from a main surface of the evaporator in one step with the evaporator by pressing a basic material into a negative mould, or is fitted to the evaporator by sintering or welding.

15. A kit for producing an evaporator subassembly according to claim 1 comprising an evaporator receptacle and at least two different evaporators which can be received selectively in the evaporator receptacle and which are constructed differently.

16. The evaporator subassembly according to claim 1 , wherein the evaporator comprises a nonwoven metal fiber.

17. The evaporator subassembly according to claim 1 , wherein the evaporator comprises steel.

18. The evaporator subassembly according to claim 1 , wherein the glow plug extends into the combustion chamber through a side wall of the evaporator receptacle.

Assignees

• Webasto SE

Inventors

• Meier Bengt
• Dell Vitali
• Moesl Klaus
• Rutsche Andreas
• Pannwitz Thorsten
• Arends Verena

Classifications

• F23D3/40 Primary

  the capillary action taking place in one or more rigid porous bodies · CPC title

• F23D3/22

  Devices for mixing evaporated fuel with air · CPC title

• F23D2202/00

  Liquid fuel burners · CPC title

• F23Q7/08

  for evaporating and igniting liquid fuel, e.g. in hurricane lanterns · CPC title

• F02M31/16

  Other apparatus for heating fuel · CPC title