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US 5,687,473 AGranted
Apparatus and method for mounting a hairpin tube to a heat exchanger
AssigneeKyoshin Kogyo Co., Ltd.
InventorKenji Tokura
Life of this patent
Estimating the term…
Abstract
A method for mounting a hairpin tube to a heat exchanger body where a rod member is inserted into at least one of plural through holes defined in each of plural radiation fins stacked in the heat exchanger body. The rod member is further extended through the associated through holes of the stacked radiation fins. The hairpin tube is then inserted into the corresponding through holes.
Claims12
An apparatus for mounting a hairpin tube to a heat exchanger body, which comprises:
- a base;
- a reciprocating member movable forward and backward longitudinally of said base;
- a rod member mounted on said reciprocating member and insertable into through holes defined in each of plural radiation fins stacked in the heat exchanger body from the through hole of the radiation fin closer to one end of the heat exchanger body to the radiation fin closer to the opposite end of the heat exchanger body;
- a hairpin tube transporting member for transporting the hairpin tube such that an open end of the hairpin tube is inserted into the through hole of the radiation fin closer to the opposite end of the heat exchanger body;
- and
- means for imparting motion to said rod member for smoothly inserting said rod member into said through holes wherein said motion is independent of the motion of said reciprocating member.
3 more elements
An apparatus for mounting a hairpin tube to a heat exchanger body, which comprises:
- a base;
- a reciprocating member movable forward and backward longitudinally of said base;
- rod members mounted on said reciprocating member such that each said rod member is inserted into at least one of plural through holes defined in each of plural radiation fins stacked in the heat exchanger body from the through holes of the radiation fin closer to one end of the heat exchanger body to the radiation fin closer to the opposite end of said heat exchanger body, and each said rod member being positioned to correspond to at least one of the through holes;
- a hairpin tube transporting member for transporting the hairpin tube such that an open end of the hairpin tube is inserted into the through holes from at least one of the ends of the heat exchanger body, wherein the hairpin tube to be inserted from the one end of the heat exchanger body is inserted into through holes of said radiation fins other than the through holes into which said rod members are inserted;
- and
- means for imparting motion to said rod members for smoothly inserting said rod members into said through holes wherein said motion is independent of the motion of said reciprocating member.
3 more elements
An apparatus for mounting a hairpin tube to a heat exchanger body, which comprises:
- a base;
- a reciprocating member movable forward and backward longitudinally of said base;
- rod members mounted on said reciprocating member such that each rod member is inserted into through holes defined in each of plural radiation fins stacked in the heat exchanger body from the through holes of the radiation fin closer to at least one end of the heat exchanger body;
- a hairpin tube transporting member for transporting the hairpin tube such that an open end of said hairpin tube positioned to face through hole of the radiation fin closer to the opposite end of the heat exchanger body abuts against a tip end of said rod member protruded from the through hole via the forward movement of said reciprocating member, said hairpin tube transporting member moving said hairpin tube synchronously with the movement of said reciprocating member to insert said hairpin tube into the through hole of the radiation fin closer to the opposite end of the heat exchanger body while maintaining an abutment between the open end of the hairpin tube and said tip end of said rod member, when said reciprocating member is moved backward away from the heat exchanger body;
- and
- means for imparting motion to said rod members for smoothly inserting said rod members into said through holes wherein said motion is independent of the motion of said reciprocating member.
3 more elements
Dependencies are inferred from the claim text.