Title:
COOLING WATER EXCHANGE DEVICE FOR ENGINE
Document Type and Number:
Japanese Patent JP3146168
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To speedily exchange engine cooling water by arranging detachable means mounted on a filler port of a radiator, and switchably connecting a positive pressure line for energizing positive pressure and a negative pressure line for generating negative pressure thereto.
SOLUTION: In order to remove cooling water such as LLC inside an engine cooling water passage 1, a plug 12 is attached to a filler port 2 of a radiator 6 in a water-tight condition. Changeover parts 17, 24 are switched to a position as indicated by the drawing. An air compressor 14 and an engine are driven. Negative pressure generated in an ejector 23 is applied to the cooling water passage 1 through passages 23a, 25, c, d, 13, 12. A boiling point of the cooling water is thus lowered. The cooling water is boiled with a comparatively low temperature and is pressurized by generated bubbles. Total cooling water and bubbles inside the engine cooling water passage 1 are suctioned in such a state and discharged from an outflow port 27 of the ejector 23. Removal and discharge are performed in an extremely short time.
Inventors:
Yasumasa Akazawa
Application Number:
JP35487196A
Publication Date:
March 12, 2001
Filing Date:
December 20, 1996
Export Citation:
Assignee:
Yasumasa Akazawa
International Classes:
F01P11/00; F01P11/06; (IPC1-7): F01P11/00
Domestic Patent References:
| JP8170534A |
Other References:
【文献】登録実用新案3014362(JP,U)
Attorney, Agent or Firm:
Yoshiaki Nagata