Air conditioning system of heat pump type
US5560217A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Feb 14, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00914
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A heat pump type air conditioning system comprises an air duct in which air flows in a given direction with an aid of an electric air blower. A condenser is disposed in the air duct. A compressor has an outlet connected to an inlet of the condenser. A receiver dryer has an inlet connected to an outlet of the condenser. An outside expansion valve has an inlet connected to an outlet of the receiver dryer through a first passage. An outside evaporator has both an inlet connected to an outlet of the outside expansion valve and an outlet connected to an inlet of the compressor through a second passage. An inside evaporator is disposed in the air duct at a position upstream of the condenser. An inside expansion valve has both an inlet connected to the first passage and an outlet connected to an inlet of the inside evaporator. A coolant distributing circuit is further employed which feeds the inside evaporator with at least a part of coolant discharged from the receiver dryer when the coolant pressure in the inside evaporator exceeds a predetermined degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.