Refrigerant condenser
AssigneeNippondenso Co., Ltd.
InventorsMichiyasu Yamamoto, Ken Yamamoto, Ryouichi Sanada
Life of this patent
Estimating the term…
Abstract
A refrigerant condenser is set so that, if its condensation distance is L, the equivalent diameter of a tube having a linearly configured passage for the purpose of heat exchange is de (each dimension being in units of mm), and the number of times the direction change of the linearly configured passage for the purpose of heat exchange change is N, with de.ltoreq.1.15 and the relationship L=(N+1)W=400+1,180 de to 700+1,180 de satisfied, a high heat exchange efficiency is achieved. In this refrigerant condenser, it is possible to use a single long winding tube.
Claims4
A refrigerant condenser for use in a vehicle air-conditioner, the condenser comprising:
- a pair of headers which form an inlet and an outlet for refrigerant, and
- at least one tube which forms an internal passage through which refrigerant is caused to flow, said at least one tube being connected to each header, wherein at least part of said passage forms a linearly configured passage for the purpose of heat exchange,
- wherein when the number of times the direction change of flow of refrigerant within said tube in flowing toward the linearly configured passage is N, the effective heat exchange width of said linearly configured passage is W (in units of mm), the condensation distance of the refrigerant is L (in units of mm), and the equivalent diameter of said linearly configured passage is de (in units of mm), the width W being within the range of 300 to 800 mm, the equivalent diameter de of said linearly configured passage is 1.15 or smaller, and further is set so as to satisfy the condition defined by the relationship ##EQU3## with the number N being an integer rounded from the expression (L/W)-1.
Dependencies are inferred from the claim text.