Water removing device in refrigerating system

U.S. Patent Number: 5301520

Abstract: There is used a refrigerant which is lower in a saturated water concentration in gas phase than in liquid phase, such as, for example, Freon-134a or Freon-22. In a body block 46 of a box-shaped expansion valve there are formed by-passes 77, 81 and 86 for by-passing a portion of the refrigerant evaporated in an evaporator 41. Halfway in the by-passes 77, 81 and 86 a cooling cylinder 73 is disposed for cooling the refrigerant present in those by-passes, and further a filter 83 is disposed for collecting the water contained in the refrigerant. In addition, a water permeating membrane 88 is disposed in a water discharge passage 79 formed in the body block 46.

Inventors: Kitamura; Keiichi (Handa, JP); Honda; Shin (Nagoya, JP); Sakakibara; Hisayoshi (Nishio, JP); Honda; Masashi (Okazaki, JP)

Assignee: Nippondenso Co., Ltd. (Kariya, JP)

Application Number: 07/868,301

Issued: 1994-04-12

Expired: 2006-04-12

Classes: 62/475 ; 62/474; 62/85

Field of search: 62/85,474,475

Click the image above to view patent images at uspto.gov within a frame.

Click here for the fulltext page on uspto.gov within a frame.