Title:
MIXING DRUM DRIVE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/042182
Kind Code:
A1
Abstract:
This mixing drum drive apparatus is provided with: a hydraulic motor that rotatably drives a mixing drum; a hydraulic pump that is driven by the engine of a mixing truck, and supplies hydraulic fluid to the hydraulic motor; an auxiliary hydraulic pump that is driven by an electric motor, and supplies hydraulic fluid to the hydraulic motor; a pressure detector that detects the pressure of hydraulic fluid discharged from the auxiliary hydraulic pump; and a control valve that controls whether or not hydraulic fluid from the auxiliary hydraulic pump is supplied to the hydraulic motor. A controller opens the control valve if the pressure detected by the pressure detector is greater than or equal to a preset pressure when the control vale is closed and the mixing drum is being rotatably driven by the hydraulic motor driven by the hydraulic pump.
Inventors:
TAKAHASHI YOSHIMITSU (JP)
Application Number:
PCT/JP2013/074512
Publication Date:
March 20, 2014
Filing Date:
September 11, 2013
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
B60P3/16; B28C5/42; F15B11/00
Foreign References:
| JP2003294008A | 2003-10-15 | |||
| JP2003301802A | 2003-10-24 | |||
| JP2003294005A | 2003-10-15 |
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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