Patent ID: 6164923
Filing Date: 2000-12-26
Classification: E04G,F04B

Abstract:
A mobile thick matter pumping having:a drive mechanism comprising a vehicle motor (40) and a gear box (42) connected to the vehicle motor (40),a drive shaft (46) connected to the gear box (42),at least one hydraulic pump (54) for driving the thick matter pump (24), which pump is adapted to be coupled to said drive shaft (46), optionally under interposition of a transfer gear box (48), as well asa speed limiter device (70) for setting a maximum motor speed during the operation of the pump,wherein the gear box (42) has at least first and second gear ratios, and wherein upon selection of said first gear ratio said speed limiter device limits said vehicle motor (40) to a first maximum motor speed, and upon selection of said second gear ratio said speed limiter device limits said vehicle motor (40) to a second maximum motor speed which is different from said first maximum motor speed.