Title:
LIFE DETERMINATION SYSTEM FOR HYDRAULIC PRESSURE PUMP
Document Type and Number:
WIPO Patent Application WO/2023/139841
Kind Code:
A1
Abstract:
A life determination system (4) for a hydraulic pressure pump (11) driven by a motor (2) includes a pump controller (5). The pump controller (5) calculates, every time a predetermined period of time elapses, an equivalent operating time of the hydraulic pressure pump (11) during the predetermined period of time on the basis of a real operating time of the motor (2) during the predetermined period of time, a change in the rotational speed of the motor (2), a change in the discharge pressure of the hydraulic pressure pump (11), and a change in the temperature of a hydraulic fluid.
Inventors:
KONDO AKIHIRO
OKADA YOSHIFURU
KODERA HIROYASU
OKADA YOSHIFURU
KODERA HIROYASU
Application Number:
PCT/JP2022/034196
Publication Date:
July 27, 2023
Filing Date:
September 13, 2022
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F04B49/10; F04D15/00
Domestic Patent References:
| WO2012147751A1 | 2012-11-01 | |||
| WO2015194577A1 | 2015-12-23 |
Foreign References:
| JP2007327332A | 2007-12-20 | |||
| JP2000027236A | 2000-01-25 | |||
| US20110056194A1 | 2011-03-10 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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