Title:
HYDRAULIC OIL PATH SYSTEM AND HYDRAULIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/134108
Kind Code:
A1
Abstract:
A hydraulic oil path system, which relates to the technical field of hydraulic machines. The hydraulic oil path system comprises a main oil tank (1), an auxiliary oil tank (2) and an oil conveying pipe (3), wherein the auxiliary oil tank is higher than the main oil tank in terms of position, an oil inlet at the head end of the oil conveying pipe is connected to the auxiliary oil tank, and an oil outlet (31) at the tail end of the oil conveying pipe is connected to the main oil tank. The hydraulic oil path system further comprises a flow guiding and defoaming mechanism (4) and a stirring and defoaming mechanism (5), wherein the flow guiding and defoaming mechanism comprises a flow guiding member, the flow guiding member being arranged inside the oil conveying pipe and extending into the main oil tank, so as to allow oil flowing in the oil conveying pipe to be adhered to the surface of the flow guiding member and to flow into the main oil tank along the flow guiding member; and the stirring and defoaming mechanism comprises a stirring impeller, the stirring impeller being arranged in the main oil tank and being capable of rotating so as to eliminate bubbles in the oil in the main oil tank by means of stirring, the tail end of the flow guiding member being connected to the stirring impeller, and the flow guiding member being capable of rotating under the impact of the oil flowing in the oil conveying pipe so as to drive the stirring impeller to rotate. Further disclosed is a hydraulic machine. The hydraulic oil path system can reduce the generation of bubbles, and is provided with the stirring and defoaming mechanism so as to further reduce the bubbles in the oil, such that an oil pump is protected.
Inventors:
CHEN GUOHUA (CN)
LI YONGJIE (CN)
ZHANG YUE (CN)
LI YONGJIE (CN)
ZHANG YUE (CN)
Application Number:
PCT/CN2020/139706
Publication Date:
June 30, 2022
Filing Date:
December 25, 2020
Export Citation:
Assignee:
FOSHAN KANGSIDA HYDRAULIC MACHINERY CO LTD (CN)
International Classes:
B01D19/00; E02F9/00; F15B1/26; F15B21/04
Foreign References:
| CN104023807A | 2014-09-03 | |||
| CN103967850A | 2014-08-06 | |||
| CN106838621A | 2017-06-13 | |||
| CN201665025U | 2010-12-08 | |||
| JP2010216608A | 2010-09-30 | |||
| JP2013002031A | 2013-01-07 | |||
| KR20150122836A | 2015-11-03 | |||
| EP0423396A2 | 1991-04-24 | |||
| JP2013189781A | 2013-09-26 | |||
| JPH08318103A | 1996-12-03 |
Attorney, Agent or Firm:
BEIJING MIZAR STAR INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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