초록 ▼

An air flow panel for mounting on a vertical wall in association with semi-trailer type refrigeration units has alternating valleys and ridges adjacent the vertical wall, each which terminate in circular openings facing the trailer floor. The ridges and valleys provide significant structural benefit

An air flow panel for mounting on a vertical wall in association with semi-trailer type refrigeration units has alternating valleys and ridges adjacent the vertical wall, each which terminate in circular openings facing the trailer floor. The ridges and valleys provide significant structural benefit, and in addition provide air flow pathways that terminate at different heights above the trailer floor. Small horizontal dimples extend from the vertical wall to a small groove adjacent the cargo surface. The juxtaposition of the small groove enhances structural integrity during significant impact from the cargo area. Circular screens are additionally pressed into the circular air intake openings. The intake screens have legs extending from a screen grid. The legs not only interlock with the panel but also space the grid from the panel, thereby increasing the effective screen size and decreasing resistance to air flow through the openings. Since the grid is spaced from the panel, the intake screen legs may be readily manually accessed and attached to or released from the panel without conflicting with the screen.

대표청구항 ▼

[ I claim:] [15.] A refrigeration system in combination with a tractor trailer for carrying temperature-sensitive cargo in a cargo area having a floor, walls and a ceiling, comprising:a heat exchanger;an air flow panel adjacent to but spaced from a wall of said tractor trailer and forming an air flo

[ I claim:] [15.] A refrigeration system in combination with a tractor trailer for carrying temperature-sensitive cargo in a cargo area having a floor, walls and a ceiling, comprising:a heat exchanger;an air flow panel adjacent to but spaced from a wall of said tractor trailer and forming an air flow pathway therebetween leading into said heat exchanger,a first set of vertically extending generally rectangular polyhedrons having a first cargo facing surface, a second surface terminating at a bottom thereof with a first set of inlets through said air flow panel adjacent said cargo floor, a third and fourth surface each extending from said first cargo facing surface to said adjacent wall and having horizontal dimples therein which extend from said adjacent wall towards said cargo area and which terminate in a small groove, said small groove spacing said dimples from said first cargo facing surface;a second set of inlets through said air flow panel vertically displaced from said first set of inlets, said second set of inlets interspersed between said first set of inlets and alternating therewith, thereby opening into said cargo area in spaces between said first set of vertically extending rectangular polyhedrons;screens within said inlets having manually removable fasteners retaining said screens to said first and second set of inlets;whereby debris and other matter drawn into one of said first set of inlets is not directly drawn into others of said inlets due to the increased physical spacing between adjacent inlets, said removable screens prevent passage of debris into said air flow pathway and may be manually removed for cleaning, and said cargo facing surface flexes controllably in response to an impact originating from said cargo area before fully mechanically loading against said horizontal dimples.