Mahle International Gmbh

Gm Global Technolgoy Operations, Inc.

Silas G Goma

Douglas Charles Wintersteen

Donald Robert Pautler

Bruce W Dittly

Robert Louis Runk

Longhu Li

Samuel Cicatello

Neil A Walkowski

Robert M Macartney

A device is configured for opening a heat exchanger core from a U-shape to a V-shape. Such heat exchanger core has a plurality of parallel flat tubes, each having two ends; and two manifolds. Each of the flat tubes has two straight sections adjacent to the manifolds and an intermediate bent section. The device has two hinged frames, a respective clamp arrangement on each of the hinged frames for holding the two manifolds, and a trough shaped support for the intermediate portion. For opening the U-shaped heat exchanger core, the heat exchanger core is inserted into the device, and the two manifolds are secured with the clamp arrangements. The clamp arrangements are separated from one another by pivoting apart the two hinged frames, on which the clamps are mounted. Simultaneously, the intermediate bent section is pushed toward the trough adapted to provide a desired curvature to the intermediate section.

Device and method for opening folded heat exchanger cores

A heat exchanger assembly having a manifold, a partition member inserted into the interior cavity of the manifold through an open end such that the partition member cooperates with the interior surface of the manifold to partition the interior cavity into a manifold chamber and a distributor/collector chamber. The partition member and distributor/collector chamber function together as a distributor/collector tube within the manifold. The partition member includes a plurality of orifices along a length of the partition member, two opposite facing flange portions along the length of the partition member, a bulkhead panel extending from an end of the partition member adjacent the open end of the manifold, and a spring locator tab panel extending from an end of the partition member opposite of the bulk head panel, wherein the spring locator tab panel is biased against the closed end.

Method of manufacturing a heat exchanger assembly having a sheet metal distributor/collector tube

A banding strap for holding together the parts of a heat exchanger core during a brazing operation is crimped at its overlapping ends by forming two longitudinally spaced pairs of tabs, each pair being on opposite side edges of the strap. The tabs are bent from the strap ends at an angle normal to the strap surface so that corresponding notches are formed in the strap. The crimping apparatus includes a clamp for holding one end of the strap, a knife for cutting off the strap from stock, a laminated anvil which descends onto one side the strap, and crimping blades which move around to the opposite side of the strap to push portions of the strap ends against the sharp edges of the anvil to form the tabs. A powered ram is coupled to each of the clamp, knife, anvil, and crimping elements to operate each element in proper sequence during ram motion.

Strap crimp and crimping tool

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Amherst, NY, United States of America

Silas G Goma