公开(公告)号：US20210114434A1

公开(公告)日：2021-04-22

申请号：US16464373

申请日：2017-11-22

Applicant: Webasto SE

Inventor： ANDREAS RUTSCHE ,  VITALI DELL ,  MATTHIAS PFAU

IPC: B60H1/22

Abstract: A method to operate a fuel-operated vehicle heater comprising the lowering of a combustion air ratio λ between supplied combustion air and supplied fuel to a combustion chamber of the fuel-operated vehicle heater from a starting value λstart>1 to a range λ

公开(公告)号：US20200011527A1

公开(公告)日：2020-01-09

申请号：US16489230

申请日：2018-03-06

Applicant: Webasto SE

Inventor： KLAUS MÖSL ,  BJÖRN SMIGIEL ,  PAUL LEINSLE ,  VITALI DELL ,  MATTHIAS PFAU ,  MARCUS GOWITZKE

IPC: F23D14/72 ,  F23N5/08

Abstract: Burner (10), in particular for a vehicle heater (12), having an orifice plate (14) separating an inner combustion region (16) from an outer region (18), wherein a photosensitive sensor (20) is arranged in the outer region (18), wherein at least two separate air inlet openings (22, 24, 26, 28) are being provided in the orifice plate (14), wherein one of the at least two air inlet openings (22, 24, 26, 28) is additionally formed as a light opening (28) which also allows light to pass from the inner combustion region (16) to the photosensitive sensor (20) that is arranged in the outer region (18), wherein the at least two air inlet openings (22, 24, 26, 28) are being shaped such that the same combustion air quantities flow into the internal combustion region (16) per unit time, respectively, and wherein the orifice plate (14) is transparent and/or the light opening (28) has a shape different from the air inlet openings (22, 24, 26) that are not formed as light opening such that an illumination area defined by the light opening (28) is larger than a reference illumination area defined by one of the at least two air inlet openings (22, 24, 26) that are not formed as light opening (28).