Title:
HYBRID CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2012/101974
Kind Code:
A1
Abstract:
A hybrid construction machine, which enables a circuit configuration for maintaining an engine, a capacitor and hybrid equipment at the appropriate temperature to be simplified and miniaturized, is provided. The hybrid construction machine is provided with: a capacitor temperature adjustment circuit (13); an engine cooling circuit (11) that uses a first coolant to cool an engine (1), and that is capable of switching between a state in which the first coolant is introduced to the capacitor temperature adjustment circuit (13) after cooling the engine, and a state in which the introduction of the first coolant to the capacitor temperature adjustment circuit (13) is stopped; an equipment cooling circuit (12) that uses a second coolant to cool equipment that needs cooling, and that is capable of switching between a state in which the second coolant is introduced to the capacitor temperature adjustment circuit (13), and a state in which the introduction of the second coolant to the capacitor temperature adjustment circuit (13) is stopped; and a controller (17) that controls the operation of the engine cooling circuit (11), the equipment cooling circuit (12) and a circuit-switching valve (19) in such a manner that the first coolant or the second coolant selectively flow through the capacitor temperature adjustment circuit (13) according to whether the capacitor (6) needs to warmed up or cooled down.
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Inventors:
YAMASHITA, Koji (())
Application Number:
JP2012/000202
Publication Date:
August 02, 2012
Filing Date:
January 16, 2012
Export Citation:
Assignee:
KOBELCO CONSTRUCTION MACHINERY CO., LTD. (2-1 Itsukaichikou 2-chome, Saeki-ku Hiroshima-sh, Hiroshima 61, 〒7315161, JP)
コベルコ建機株式会社 (〒61 広島県広島市佐伯区五日市港２丁目２番１号 Hiroshima, 〒7315161, JP)
コベルコ建機株式会社 (〒61 広島県広島市佐伯区五日市港２丁目２番１号 Hiroshima, 〒7315161, JP)
International Classes:
E02F9/20; E02F9/00
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (Osaka Nakanoshima Building 2nd Floor, 2-2, Nakanoshima 2-chome,,Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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Claims: