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A component and structural arrangement of a transport refrigeration unit for the front wall of a trailer and which utilizes a generally planar frame attached to the front wall to provide a support arrangement in which the load of the components is transferred back to the planar frame, and which incl

A component and structural arrangement of a transport refrigeration unit for the front wall of a trailer and which utilizes a generally planar frame attached to the front wall to provide a support arrangement in which the load of the components is transferred back to the planar frame, and which includes an airflow plenum through which trailer air is passed for conditioning which is disposed relative to the plane of the frame with a material part of the front-to-rear depth of the plenum being forwardly of the plane to significantly reduce the projection of the plenum into the trailer cargo space.

대표청구항 ▼

A transport refrigeration unit adapted to be mounted on the front wall of a trailer for conditioning the interior of the trailer, comprising: an internal combustion engine and a refrigerant compressor driven thereby and connected together to form an engine-compressor unit, a refrigerant condenser, a

A transport refrigeration unit adapted to be mounted on the front wall of a trailer for conditioning the interior of the trailer, comprising: an internal combustion engine and a refrigerant compressor driven thereby and connected together to form an engine-compressor unit, a refrigerant condenser, and a refrigerant evaporator; a generally planar frame adapted to be mounted against the front wall of the trailer and seal around an opening in the front wall of the trailer; wall means defining a generally vertically disposed plenum encompassed by the upper part of said frame above an intermediate level cross member of said frame, said plenum being disposed relative to the plane of said frame with a material part of the front-to-rear depth of the plenum being forwardly of said plane; upper support means extending forwardly from the upper part of said frame and the front wall of said plenum to provide the total support of said condenser; lower support means extending forwardly from the lower part of said frame below said plenum supporting said engine-compressor unit totally from said frame in a position underlying said condenser and the forward depth of said plenum; said refrigerant evaporator being disposed in the lower part of said plenum and sloping upwardly and rearwardly, the upper portion of said plenum above said evaporator including a vertically disposed partition having a blower inlet therein and separating said upper portion of the plenum into an upper rear space and an upper front space, said upper front space being in communication with the upper airflow face of said evaporator, and said upper, rear space being in communication with the interior of the trailer; an evaporator blower in said upper portion of said plenum for circulating air from said trailer through said plenum; and a removable front cover secured to said planar frame and encompassing those parts forwardly of said planar frame.