Title:
EXCAVATOR
Document Type and Number:
WIPO Patent Application WO/2022/210776
Kind Code:
A1
Abstract:
This excavator (100) has a lower traveling body (1) including a crawler (1C), an upper turning body (3) turnably mounted on the lower traveling body (1), a travel hydraulic motor (2M) that drives the crawler (1C), a travel lever (26D) corresponding to the travel hydraulic motor (2M), a main pump (14) that supplies hydraulic fluid to the travel hydraulic motor (2M), and a detection means that detects the operating state of the travel lever (26D). The excavator (100) is configured such that fluctuation in the flow rate of the hydraulic fluid discharged by the main pump (14) is minimized in accordance with the result of detecting the operating state.
Inventors:
NISHIKAWARA RIICHI (JP)
SHIRATANI RYUJI (JP)
SANO KIMINORI (JP)
KUROKAWA TOMOKI (JP)
ARAGAKI HAJIME (JP)
SHIRATANI RYUJI (JP)
SANO KIMINORI (JP)
KUROKAWA TOMOKI (JP)
ARAGAKI HAJIME (JP)
Application Number:
PCT/JP2022/015675
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
SUMITOMO CONSTRUCTION MACHINERY CO LTD (JP)
International Classes:
E02F9/20; E02F9/22
Domestic Patent References:
| WO2019009198A1 | 2019-01-10 | |||
| WO2019049327A1 | 2019-03-14 | |||
| WO2019189935A1 | 2019-10-03 |
Foreign References:
| JPH10299034A | 1998-11-10 | |||
| JP2020085197A | 2020-06-04 | |||
| JP2020159048A | 2020-10-01 | |||
| JPH09195833A | 1997-07-29 | |||
| JP2004340259A | 2004-12-02 | |||
| JP2021056036A | 2021-04-08 | |||
| JP2021061265A | 2021-04-15 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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