Condenser for refrigerating cycle
US5444993A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | May 23, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/1933
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A condenser for a refrigerant, capable of varying the condensing capacity of the condenser in accordance with a load, so that a condensing pressure larger than a predetermined value is maintained at the condenser when the load is low. The condenser includes a inlet header 15 to which a first inlet conduit 17 is connected at its top location. The inlet conduit 17 is provided with a U-shaped portion 17a and an upright portion 17b. A second inlet conduit 18 is connected to the header 15 at its bottom location. During a high load condition, the high speed of the flow of the refrigerant prevents a lubricant mixed with the refrigerant from being held at the U-shaped portion 17a, so that the gaseous state the refrigerant can pass through the upright portion 17b, so that the refrigerant is introduced into all of heat exchanging tubes 13, thereby obtaining a large area of the heat emission by the heat exchanging tubes 13. During a low load condition, the low speed of the flow of the refrigerant allows the lubricant to be held at the U-shaped portion 17a, so that the gaseous state the refrigerant is blocked at the first inlet conduit 17, so that the refrigerant is introduced only into the he…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.