Heat recovering device for dishwashers
US3986345A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Apr 4, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/909
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A device for recovering heat from dishwashing machines, especially dishwashing machines of the type in which dishes to be washed enter the dishwashing machine through an opening in one side and are removed from the dishwashing machine from an opening in the opposite side of the machine. The device has air inlet means positioned to receive heated air from the openings in the dishwashing machine and conveys the air via duct work through a heat exchanger. The heat pump compresses coolant fluid which then flows through condenser means and then to the evaporator wherein the heat exchange with the air occurs and then back to the pump. Water undergoes heat exchange with the coolant fluid in the condenser means and this water may be used during the dishwasher cycle. Control means control the supply of coolant fluid to the evaporator and the starting and stopping of the drive motor for the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.