Plate kind heat exchanger
AssigneeDanfoss A/S
InventorsHelge Nielsen, Henrik Agerley Thomsen
Life of this patent
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Abstract
The present invention introduces a heat exchanger including a stack of heat transfer plates positioned between two end plates in which recesses formed in edge regions are adapted to accommodate bolts reaching from a first to a second of said two end plates, said at least one of said recesses formed with locking features adapted to engage with a locking device including an opening, where the locking device is to be positioned on the respective end plate with the opening aligned with the recess in such a manner that a bolt positioned in the recess also can project through said opening. This prevents the bold from falling out of the recesses.
Claims20
A heat exchanger comprising a stack of heat transfer plates positioned between two end plates in which recesses formed in edge regions are adapted to accommodate bolts reaching from a first to a second of said two end plates, said at least one of said recesses formed with locking features adapted to engage with a locking device comprising an opening, where the locking device is to be positioned on the respective end plate with the opening aligned with the recess in such a manner that a bolt positioned in the recess also can project through said opening.
A locking device to be used in connection with a heat exchanger comprising a stack of heat transfer plates positioned between two end plates, wherein said locking device comprises a main section adapted to be positioned on the surface of an end plate and is formed with a locking section projecting with an angel relative to the main portion and adapted to match with a locking feature in said end plate.
A method to assemble a heat exchanger comprising a stack of heat transfer plates positioned between a first and second end plate each having at least one recesses formed in an edge region, said method being to for locking devices each comprising a main section formed with an opening and a locking section to be positioned with the main section resting on the surface of said end plate with the opening aligned with the respective end plate recess and the locking section engaging a locking feature of the respective end plate, and positioning a bolt through the aligned openings and recesses of respectively the first and second end plate, said bolt having a polygonal end section positioned on the main section of the first end plate.
Dependencies are inferred from the claim text.