Title:
SHOVEL
Document Type and Number:
Japanese Patent JP2015198495
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shovel which is capable of efficiently warming up an engine and a condenser and which is excellent in fuel saving and low noise.SOLUTION: The shovel includes: an upper revolving body with a working element; a motor generator installed on the upper revolving body; two condensers each being electrically connected with the motor generator; and a controller. At a warming-up operation, the controller performs warming-up by repetitively performing charge and discharge operations between one and the other of the two condensers.
Inventors:
YANAGISAWA MAKOTO
Application Number:
JP2014074739A
Publication Date:
November 09, 2015
Filing Date:
March 31, 2014
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES
International Classes:
H02J7/00; B60L11/18; E02F9/20; H01M10/615; H01M10/625; H01M10/633; H02J7/02
Domestic Patent References:
| JP2011047210A | 2011-03-10 | |||
| JP2011076927A | 2011-04-14 | |||
| JP2008060047A | 2008-03-13 |
Foreign References:
| WO2010079794A1 | 2010-07-15 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito