Title:
LUBRICATING OIL PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/132303
Kind Code:
A1
Abstract:
The present invention provides a lubricating oil pump device. The lubricating oil pump device includes a pump main body and a lubricating oil cartridge, wherein the pump main body comprises: a suction part; a discharge part; a piston; a relief valve; a pressure detection sensor; a control part; a first pipeline; an inlet-side check valve, between the suction part and the discharge part, for preventing lubricating oil, having moved to the first pipeline, from flowing back to the lubricating oil cartridge; an outlet-side check valve, between the suction part and the discharge part, for preventing the lubricating oil, having been supplied to a lubricating oil supply pipe, from flowing back to the first pipeline; a second pipeline; a third pipeline; and a fourth pipeline, the pressure detection sensor detects pressure inside the pump main body through the fourth pipeline, the relief valve is connected to the first pipeline and the second pipeline, and, if the detected pressure exceeds pressure preset by a user, the control part controls the operation of the piston on the basis of a pressure removal signal so as to open the third pipeline.
Inventors:
KIM CHANGSUN (KR)
Application Number:
PCT/KR2018/015477
Publication Date:
July 04, 2019
Filing Date:
December 07, 2018
Export Citation:
Assignee:
HANSUNG PREC CO LTD (KR)
International Classes:
F16N13/04; F16N13/06; F16N29/02
Foreign References:
| KR101720782B1 | 2017-03-28 | |||
| KR20130136492A | 2013-12-12 | |||
| KR101027653B1 | 2011-04-12 | |||
| KR20140026672A | 2014-03-06 | |||
| JPH06137489A | 1994-05-17 |
Attorney, Agent or Firm:
HONG, Myoungki (KR)
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