Title:
FLUID COUPLING
Document Type and Number:
Japanese Patent JPS5881230
Kind Code:
A
Abstract:
PURPOSE:To avoid the necessity of a special water feeding pump and simplify the whole structure by branching a water feeding pipe from the discharge pipe of a pump, connecting it to the feeding port of a fluid coupling and installing a flow rate control valve in the water feeding pipe so as to feed water through utilization of the discharge pressure of the pump. CONSTITUTION:When a motor 16 is driven, an impeller 18 and a casing 19 are revolved through a rotary shaft 17. Next, when an ON/OFF-valve 37 is opened, priming water is supplied to a water feeding port 24 from a pipe 36. Said priming water flows into a runner 20 through the casing 19 and the impeller 18, and when the amount of water increases, the runner 20 revolves and a pump 21 is driven. Then, the water in a water tank 28 is pumped-up through a suction pipe 29 and discharged from a discharge pipe 30. At this time, a part of the water from the discharge pipe 30 is introduced into a water feeding pipe 31, and supplied into the water feeding port 24, passing through a flow-rate control valve 32. Said flow-rate control valve 32 is controlled according to the pressure signal of a detection conduit 33 which detects the discharge pressure of the pump 21. For example, when the discharge pressure is higher than a set value, the passage is throttled.
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Inventors:
FUJIMURA HIROYUKI
OOTAKE SHIGERU
HATSUTORI KAZUO
OOTAKE SHIGERU
HATSUTORI KAZUO
Application Number:
JP17978381A
Publication Date:
May 16, 1983
Filing Date:
November 11, 1981
Export Citation:
Assignee:
EBARA MFG
International Classes:
F16D33/16; (IPC1-7): F16D33/12
Domestic Patent References:
| JPS53141869A | 1978-12-11 | |||
| JP55104125B | ||||
| JPS5647699A | 1981-04-30 |
Attorney, Agent or Firm:
Takayuki Masayuki