| 摘要 |
Chilling apparatus especially adapted for an aircraft meal service cart (10) has a small blower (24) at one upper end of the inside of the cart which exhausts air across a slidable tray type of bunker (42) for receiving dry ice or other cooling material (70). The bunker is preferably of thermoformed plastic, is insulated on its bottom and sides, and has a channeled bottom which supports pieces of dry ice while permitting air to be circulated by the blower (24) under the dry ice pieces as well as around and over them. At its downstream end, the bunker (42) has an air flow turning surface (58) and an air discharge opening (62) preferably through its bottom. At its upstream end, an opening (54) directs return air which has passed over the meal trays (114) to the blower. Spacer means (88, 90) in the cart prevent the trays stacked therein from blocking the vertical air flow passage at each end of the cart. Thus, the chilled air is directed downwardly from the bunker (42) over the inside wall of a door (14 min ) on the cart. The chilled air then passes horizontally over at least a portion of the trays containing items to be chilled and is sucked upwardly along the other inside end wall (14) of the cart to the blower inlet duct. |
