Title:
SHOVEL
Document Type and Number:
WIPO Patent Application WO/2017/170352
Kind Code:
A1
Abstract:
This shovel is provided with: hydraulic pumps (14L, 14R); an engine (11) which drives the hydraulic pumps (14L, 14R); a variable displacement regenerative hydraulic motor (14A) which drives the hydraulic pumps (14L, 14R); a transmission (13) which is connected to the output shaft of the engine (11) and the output shaft of the regenerative hydraulic motor (14A) and which transmits power from the engine (11) and power from the regenerative hydraulic motor (14A) to the hydraulic pumps (14L, 14R); a boom cylinder (7) to which a work oil discharged from the hydraulic pumps (14L, 14R) is supplied; a line (45) which connects the boom cylinder (7) and the regenerative hydraulic motor (14A); a line (46) which branches from the line (45); and a first accumulator (85L) which accumulates the working oil that is emitted from the boom cylinder (7) and flows through the line (45) and the line (46).
Inventors:
HONDA KEIJI (JP)
TSUKANE KOICHIRO (JP)
MATSUZAKI EISUKE (JP)
ITOH TAKUMI (JP)
TSUKANE KOICHIRO (JP)
MATSUZAKI EISUKE (JP)
ITOH TAKUMI (JP)
Application Number:
PCT/JP2017/012303
Publication Date:
October 05, 2017
Filing Date:
March 27, 2017
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
E02F9/22; F15B21/14
Foreign References:
| JP2015222099A | 2015-12-10 | |||
| JP2010084888A | 2010-04-15 | |||
| JP2010121726A | 2010-06-03 | |||
| JP2015172400A | 2015-10-01 | |||
| JP2015105686A | 2015-06-08 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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