Cooling unit and drain case for air conditioners

Details Cooling unit and drain case for air conditioners Cooling unit and drain case for air conditioners

1994-05-18

1996-01-09

Sollecito, John M.

Refrigeration

With means preventing or handling atmospheric condensate...

Retainer or flow director for atmospheric condensate

62272, 165913, F25D 2114

Patent

active

054818869

ABSTRACT:
A drain case 4 is disposed between the bottom wall of a unit case and the lower end of refrigerant passage pipes 15 of a stacked type refrigerant evaporator. The drain case 4 is W-shape in cross section, and comprising two pieces of outside inclined walls 32 contacting the side ends of two pieces of tank parts 16 and 17 formed at the lower end side of the refrigerant passage pipes 15, a chevron type protruded wall 33 contacting a recessed part 28 formed at the bottom end of the part between the adjacent two pieces of tank parts 16 and 17, and inside inclined walls 34 having a drain hole 36. In this arrangement, the condensed water flows from the side ends of the two pieces of tank parts 16 and 17 and the part between the two pieces of tank part 16 and 17 into the lower ends thereof reaches the two pieces of outside inclined walls 32 and protruded wall 33 of the drain case 4 before reaching the bottom end of the two pieces of tank parts 16 and 17, and then is efficiently drained therefrom. Localized corrosion that may occur at the lower end part of refrigerant passage pipes is prevented by not allowing the condensed water to stay at the lower end side of the refrigerant passage pipes.

REFERENCES:
patent: 4589265 (1986-05-01), Nozawa
patent: 4843835 (1989-07-01), Goetz et al.
patent: 4907420 (1990-03-01), Mahanay et al.
Patent Abstract of Japan, vol. 17, No. 244, May 17, 1993, & JP,-A-04 366 395.

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