Self-contained rooftop HVAC unit
US6295826A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1999 |
| Grant date | Oct 2, 2001 |
| Priority date | — |
| Expiry date | Nov 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A heating, ventilating and air conditioning unit adapted for mounting on the roof of a bus or similar vehicle. The HVAC unit is self-contained, lightweight and provides adequate cooling, heating and ventilation to a bus passenger compartment or the occupant compartment of a similar vehicle. The HVAC unit has a unique cross-pattern arrangement of evaporator and condenser assemblies which enables air distribution from the system to function in a ducted system or a free blow system depending upon orientation of the condensers and evaporators. The HVAC unit is of compact construction and includes modular characteristics provided by the allocation of one fan to one condenser and one blower to one evaporator to enhance system performance and system redundancy. The HVAC units include diagonal symmetry of components which further improves modularity, commonality and serviceability. The unique construction of the HVAC unit enables it to be oriented in various modular arrangements so that it can be used as a single module for small or medium sized buses and as dual modules for medium to large size buses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.