Refrigerant circuit accumulator and associated fabrication metho

Details Refrigerant circuit accumulator and associated fabrication metho Refrigerant circuit accumulator and associated fabrication metho

1995-11-21

1997-11-25

Cuda, Irene

Metal working

Method of mechanical manufacture

Accumulator making

62471, B23P 1500

Patent

active

056898800

ABSTRACT:
A refrigerant circuit suction accumulator has an inner copper U-tube with open inlet and outlet ends, a small oil inlet metering orifice formed in the closed tube end, and a threaded connection stud secured to the closed tube end. Formed on an inlet end portion of the U-tube is an integral deflector structure positioned between refrigerant outlet and inlet openings in the tube side wall. The U-tube legs extend through openings in a generally disc-shaped wire mesh filter element adjacent the closed tube end. The U-tube and filter element are disposed within a unitary tubular outer shell formed from a length of seamless copper tubing. In forming the assembly, one end of the outer copper tube is spun closed and a spaced pair of holes are formed therein. The U-tube is then inserted into the interior of the outer tube and the U-tube inlet and outlet ends are passed outwardly through and sealed within the outer tube end holes, the filter element being coaxially press-fitted within the outer tube, and the side wall refrigerant inlet and outlet openings in the U-tube being disposed within the interior of the outer tube. The remaining open outer tube end is then spun closed around and sealed to the connection stud.

REFERENCES:
patent: 3872689 (1975-03-01), Bottum
patent: 4045861 (1977-09-01), Zahid
patent: 4231230 (1980-11-01), Gratur
patent: 4288894 (1981-09-01), Jacobellis
patent: 4458505 (1984-07-01), Griffen
patent: 4611750 (1986-09-01), Kish
patent: 4675971 (1987-06-01), Masserang
patent: 5076066 (1991-12-01), Bottum
patent: 5191775 (1993-03-01), Shiina et al.
patent: 5282370 (1994-02-01), Kiblaw et al.

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