Bus rooftop condenser fan

Details Bus rooftop condenser fan Bus rooftop condenser fan

2006-01-10

2006-01-10

Tapolcai, William E. (Department: 3744)

Refrigeration

With vehicle feature

Occupant-type vehicle

C062S291000, C062S428000, C062S507000, C062SDIG016

Reexamination Certificate

active

06983619

ABSTRACT:
A module is provided for attachment to the roof of a bus and includes all of the necessary components for conditioning the return air from the passenger compartment and delivering conditioned air thereto. Each module may include an evaporator section, a condenser section and a power section including a compressor and an inverter. The condenser section includes a condenser coil and a transverse fan with its axes disposed horizontally so as to draw air through a fresh air intake opening, through the coil and out a condenser discharge opening. The drain pan is shaped so as to form an air guiding wall around the fan, and a vortex wall is attached to the condenser coil support structure to separate low and high pressure sides of the fan. A rear wall and the fins of a discharge grill are angled with respect to the vertical plane so as to thereby prevent a recirculation of hot discharged air back into the air intake opening.

REFERENCES:
patent: 3301003 (1967-01-01), Laing
patent: 3662557 (1972-05-01), Morgan
patent: 3785168 (1974-01-01), Domingorene
patent: 5005372 (1991-04-01), King
patent: 5184474 (1993-02-01), Ferdows
patent: 5220808 (1993-06-01), Mayer
patent: 6295826 (2001-10-01), Lee
patent: 6543244 (2003-04-01), Amr

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