Two plate TXV block connector for automotive A/C system with com

Details Two plate TXV block connector for automotive A/C system with com Two plate TXV block connector for automotive A/C system with com

1994-11-07

1995-11-21

Tapolcai, William E.

Refrigeration

With repair, assembly or disassembly means

Detachable valve and coupling

251151, 2851371, F25D 1900

Patent

active

054676118

ABSTRACT:
A two plate, TXV block type of connector for an automotive air conditioning system evaporator improves the security and serviceability of the connection through the use of common bolts specially designed to cooperate with matching bolt passages through the TXV valve block. The evaporator side anchor plate threads to one end of the bolts first, and is pulled tight to one side of the block as enlarged flanges on the bolts are concurrently pulled tight against a recessed shoulder in the bolt passage. Matching conical shapes on the bolt flange and bolt passage shoulder, coupled with a radial clearance between the rest of the bolt and the bolt passage, self center the bolt and compensates for any initial misalignment. The bolts protruded enough to allow the second plate to be attached, or removed later, independently, with nuts that are threaded on from the same direction.

REFERENCES:
patent: 3869153 (1975-03-01), De Vincent et al.
patent: 4342421 (1982-08-01), Widdowson
patent: 4468054 (1984-08-01), Orth
patent: 5146766 (1992-09-01), Martins
patent: 5169178 (1992-12-01), Hunzinger
patent: 5271646 (1993-12-01), Allread et al.
patent: 5308125 (1994-05-01), Anderson, Jr.
patent: 5345103 (1994-10-01), Torrence et al.
patent: 5387014 (1995-02-01), Chevallier
Various Production TXV Block Connectors--13 pages.

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