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US 9,897,311 B2Granted
Combustion chamber assembly unit for a vaporizing burner
AssigneeEberspächer Climate Control Systems GmbH & Co. KG
InventorsAndreas Collmer, Axel Kouril, Uwe Grotstollen, Lars Bendix, Marcus Heim, Oliver Roppelt
Life of this patent
Estimating the term…
Abstract
A combustion chamber assembly unit, especially for a vaporizing burner and particularly especially for a vehicle heater, includes at least two combustion chamber elements (12, 20, 26, 32, 50, 52, 64, 102, 126) with wall areas (12, 34, 46, 54, 64, 104, 130, 140, 142). The at least two combustion chamber elements are arranged in a radially staggered pattern in relation to a longitudinal axis (L) of the combustion chamber and are fixed to one another by laser welding.
Claims13
A vaporizing burner combustion chamber assembly unit for a vehicle heater, the combustion chamber assembly unit comprising:
- at least two combustion chamber elements with wall areas, which are arranged radially staggered in relation to one another in reference to a longitudinal axis of the combustion chamber and are fixed to one another by laser welding;
- a porous evaporator medium,
- wherein:
- one of the at least two combustion chamber elements comprises a circumferential wall, which surrounds the longitudinal axis of the combustion chamber without interruptions and extends essentially in a direction of the longitudinal axis of the combustion chamber;
- another of the at least two combustion chamber elements comprises a circumferential wall, which surrounds the longitudinal axis of the combustion chamber without interruptions and extends essentially in the direction of the longitudinal axis of the combustion chamber;
- and
- the circumferential wall of the one combustion chamber element extends axially at least partially over the circumferential wall of the other combustion chamber element, on an outer side and is fixed to same by laser welding,
- wherein the at least two combustion chamber elements with wall areas comprise a bottom assembly unit comprising:
- the one of the at least two combustion chamber elements comprising a bottom element forming a combustion chamber element with a first bottom wall and with a first circumferential wall, which extends from an outer edge area of the first bottom wall essentially in the direction of the longitudinal axis of the combustion chamber, in a direction away from the combustion chamber;
- and
- the other of the at least two combustion chamber elements comprising a ring-shaped first holding part forming a combustion chamber element with a second circumferential wall and with a contact area touching the porous evaporator medium provided at the first bottom wall, wherein the second circumferential wall extends axially at least partially over the first circumferential wall on an outer side and is fixed to same by laser welding,
- wherein the bottom assembly unit further comprises a second holding part forming a combustion chamber element with a second bottom wall and with a third circumferential wall, which extends from a radially outer edge area of the second bottom wall essentially in the direction of the longitudinal axis of the combustion chamber in the direction away from a combustion chamber, wherein at least the first circumferential wall extends axially at least partially over the third circumferential wall on an outer side and is fixed to same by laser welding, and wherein a first mounting space is formed between the first bottom wall and the second bottom wall,
- wherein:
- the second circumferential wall is fixed at the first circumferential wall in a first axial area by laser welding;
- at least the first circumferential wall is fixed at the third circumferential wall in a second axial area by laser welding;
- and
- the first axial area is axially offset in relation to the second axial area.
14 more elements
A burner comprising:
- a bottom element with a first bottom wall having an outer edge, said bottom element including a first circumferential wall extending from said outer edge in a first axial direction of said first circumferential wall;
- a porous evaporator medium mounted on a side of said first bottom wall facing in a second axial direction of said first circumferential wall, said second axial direction being opposite to said first axial direction;
- a first holding part with a second circumferential wall and with a contact area extending radially inward from said second circumferential wall, said second circumferential wall extending axially at least partially over, and fixed to, said first circumferential wall on a radial outer side of said first circumferential wall, said first holding part being arranged on said bottom element to place said contact area in contact with a side of said porous evaporator medium facing in said second axial direction;
- a second holding part with a second bottom wall having an outer edge, said second holding part including a third circumferential wall extending from said outer edge of said second bottom wall in said first axial direction, said first circumferential wall extending axially at least partially over, and fixed to, said third circumferential wall on a radial outer side of said third circumferential wall, said second holding part being arranged in said bottom element to position said second bottom wall axially spaced from said first bottom wall in said first axial direction, said first and second axial walls and their axial spacing define a mounting space.
1 more element
Dependencies are inferred from the claim text.