Patent · US Expired

Refrigerant evaporator

US4821531A · kind A · utility

30Cited by
6References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 9, 1987
Grant dateApr 18, 1989
Priority date
Expiry dateDec 9, 2007

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF28F9/027
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A structural arrangement for an evaporator producing a uniform temperature gradient across its width. The structure is arranged so as to even out the flow of refrigerant within the evaporator. A first tank portion has a inlet and a second tank portion has a outlet. One end of each of plural tubes are connected thereto. A plurality of tubes allow refrigerant to flow from the first tank portion to the second. The tubes are arranged so as to provide equal flow distances for refrigerant across the evaporator, taking into account the directions of flow in the first and second tank portions. In a second embodiment, the inlet port and the outlet port are disposed at the first tank portion and the second tank portion respectively in such a manner that directions of the refrigerant flow within the first tank portion and the second tank portion are opposite to each other. In a third embodiment, one end of a first tube of the plurality is connected to the first tank portion closer to one end of the first tank portion, than where one end of a second tube is connected to the second tank portion closer to the other end of the second tank portion than the other end of the second tube. The inlet p…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.