Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HEAT EXCHANGING DEVICE
Document Type and Number:
Japanese Patent JPS6332291
Kind Code:
A
Abstract:

PURPOSE: To provide a compact, high-performance device by disposing multiple baffle plates in the fin area of a cross fin type heat exchanger so as to form a winding flow passage which leads the fluid in a tank in a winding manner outside the heat exchanger so that the speed of the fluid in the tank may be made faster.

CONSTITUTION: Oil supplied into a rectangular tank 1 through an oil pipe 4 from a machine tool 3 passes through a winding flow passage formed outside a cross fin type beat exchanger 2. Since the section area of the winding passage 11 is set to be an optimum area to raise the flow speed, the speed of the oil becomes high. Further, since the oil flows as it winds around the cross fin type beat exchanger 2, the heat transfer surface area becomes larger, improving the heat exchange performance between the coolant and oil. The oil cooled by the coolant returns to the machine tool through an oil return pipe 5. Since the flow speed of oil in the rectangular tank 1 can be raised, and the heat oxchanging performance improved, a compact, high performance device can be provided.


Inventors:
YAZAKI YUKIHIRO
Application Number:
JP17368386A
Publication Date:
February 10, 1988
Filing Date:
July 25, 1986
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI LTD
International Classes:
F28D1/06; F28D7/08; (IPC1-7): F28D1/06; F28D7/08



 
Previous Patent: Luminescent device

Next Patent: CONTACT ELECTRIFYING DEVICE