Title:
FLUID COUPLING CONTAINING POWER-FREE MECHANICAL SPEED CONTROL UNIT FOR PUMP
Document Type and Number:
WIPO Patent Application WO/2018/169146
Kind Code:
A1
Abstract:
The present invention relates to a fluid coupling containing a power-free mechanical speed control unit for a pump wherein, in order to compensate for a discharging water pressure change in accordance with a change of a discharging rate of the pump, the fluid coupling senses a discharging pressure change of the pump and controls a rotation number of the fluid coupling connected to the input shaft of the pump side through the same. The fluid coupling comprises a fluid coupling housing, a circulation fluid tank integrally embedded in the housing, and a mechanical control unit, wherein the fluid coupling housing has a wing shape on the outside thereof to maximize the quantity of heat discharge in the atmosphere through cooling of working fluid and partially circulates a fluid of the output side of the pump to satisfy the cooling performance thereof. Therefore, the fluid coupling has a semi-permanent durability without using a power for a separate control.
Inventors:
KANG NAM WON (KR)
RYU SOO HYUNG (KR)
AN JUNG SUB (KR)
CHANG CHOON SOO (KR)
RYU SOO HYUNG (KR)
AN JUNG SUB (KR)
CHANG CHOON SOO (KR)
Application Number:
PCT/KR2017/008863
Publication Date:
September 20, 2018
Filing Date:
August 16, 2017
Export Citation:
Assignee:
VS ENG (KR)
International Classes:
F04D13/04; F04D15/00; F04D29/58; F16D33/08
Foreign References:
| US4203829A | 1980-05-20 | |||
| US3999385A | 1976-12-28 | |||
| KR20070085658A | 2007-08-27 | |||
| KR20070024615A | 2007-03-02 | |||
| US8341954B2 | 2013-01-01 | |||
| KR20080110179A | 2008-12-18 |
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