Heat pump water heater
US4320630A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Nov 6, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H4/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
What is disclosed is an improvement in a heat pump water heater wherein the elements are disposed in a thermoplastic, molded base atop the hot water storage tank. The molded base has a drain for draining off liquid condensate. The condenser is in the form of a coil having the respective refrigerant and water paths for flowing in heat exchange relationship and disposed atop the hot water storage tank. The water has its own respective pump for being circulated through the condenser for heating the water while condensing the refrigerant. The evaporator is disposed peripherally around the top of the hot water storage tank so that the air that vaporizes the refrigerant is cooled and can be vented back to the air conditioned space. A self-supporting air filter is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.