Transport refrigeration apparatus having sound reduction cover
US4956978A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Sep 7, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/3232
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transport refrigeration unit having a top and bottom, a back, and side planes which include a front and first and second sides. The transport refrigeration unit further includes a condenser having air intake openings along a selected side plane of the unit, with condenser air being discharged through the top. A sound reducing cover is disposed to surround the transport refrigeration unit. The sound reducing cover is lined with a sound absorbing material, and it re-positions the condenser air intake such that incoming condenser air enters the unit through the top, instead of through a side plane, while maintaining top air discharge. In one embodiment the sound reducing cover separates incoming and exiting air in a direction from the front to the back of the unit, and in another embodiment in a direction from one side of the unit to the other side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.