A portable tool, capable of being moved by persons, users and/or operators, includes a motor; a fluid reservoir; a pump connected to the reservoir and the motor; a work cylinder connected to an output of the pump; an actuable tool component connected to the work cylinder; a sensor in the recue tool connected to any one or more than one of the motor, the reservoir, the pump, the work cylinder, and the tool; a controller configured to receive measurement signals from the sensor; and at least one controlled valve in a hydraulic circuit defined by the reservoir, the pump and the work cylinder and connected to the controller. The controlled valve and the controller are configured to selectively at least substantially block or open any fluid channel in the hydraulic circuit. A pump of or for such a rescue tool.

A portable tool, such as a spreader tool, cutting tool or combination spreading/cutting tool is for mobile use. The tool has an electric motor, a rechargeable battery received on the tool, a mechanically or hydraulically driven, displaceable piston rod for performing spreading and/or cutting and/or lifting or pressing. An electronic control and regulation unit controls/regulates the electric motor, such as a brushless DC motor. The electronic control and regulation unit specifies a first operating mode in which the electric motor is operated at a first frequency, and a second operating mode in which the electric motor is operated at a second frequency. The operating mode is switchable by an operator of the tool using a manually operable switch between the first and the second operating modes. The rotational speed of a three-phase current electric motor is higher at the second frequency than at the first frequency.

The present invention relates to a tool, comprising at least one motor. Further comprising a pump connected to the motor, a work cylinder in fluid connection with the pump and an actuable tool component connected to the work cylinder, characterised in that the pump and the motor are arranged directly adjacent on a common singular motor and pump shaft, without any intervening coupling, transmission or the like.

Furthermore, the invention relates to an assembly of a motor and a pump on a common shaft.

A portable tool, capable of being moved by persons, users and/or operators, includes a motor; a fluid reservoir; a pump connected to the reservoir and the motor; a work cylinder connected to an output of the pump; an actuable tool component connected to the work cylinder; a sensor in the recue tool connected to any one or more than one of the motor, the reservoir, the pump, the work cylinder, and the tool; a controller configured to receive measurement signals from the sensor; and at least one controlled valve in a hydraulic circuit defined by the reservoir, the pump and the work cylinder and connected to the controller. The controlled valve and the controller are configured to selectively at least substantially block or open any fluid channel in the hydraulic circuit. A pump of or for such a rescue tool.

A portable tool capable of being moved by persons, users and/or operators includes a motor; an actuable tool component at least connectable to the work cylinder; an add-on from a group at least including an extension, a connection and a fork, configured to be placed on the tool; and a controller connected to the motor and configured to determine presence of the add-on on the tool to selectively increase or reduce motor force and/or speed, depending on detected presence or absence of the add-on.

The present disclosure relates to a waterproof housing of a battery-replaceable hydraulic device, and more particularly, a waterproof housing of a battery-replaceable hydraulic device for providing an improved watertight structure so that a hydraulic device operated by a detachable battery can be used underwater or in rain.

The invention relates to a system for hydraulic actuation of multiple consumer units comprising a hydraulic circuit (130) operated by means of a hydraulic motor (122) which actuates a consumer unit (111) wherein, downstream of the first consumer unit (111), the hydraulic circuit (130) has at least one secondary circuit (140, 150) having at least a second consumer unit (114, 118) and arranged before the second consumer unit (114) and a pump (113, 117) directly or indirectly actuated by the first consumer unit (111).

An extension tool includes a plurality of sequentially arranged links moveable to a first position, the plurality of sequentially arranged links rigidly fixed to one another in the first position, the plurality of sequentially arranged links defining a first passage and a second passage, the second passage being separate from the first passage when the plurality of sequentially arranged links are rigidly fixed to one another.

A bolt tensioning tool includes a housing, an electric motor positioned within the housing, a hydraulic pump positioned within the housing, the pump being driven by the motor to pressurize hydraulic fluid stored within the housing or a remote reservoir, and a tensioning assembly connectable to a bolt for applying tension thereto in response to an applied force by the pressurized hydraulic fluid.

A hydraulically activatable working device includes a hydraulic cylinder and at least one first and one second partial piston provided therein. The partial pistons can be moved under pressurization by a hydraulic medium to perform a working operation. Each partial piston has an impact surface at its lower end against which the hydraulic medium may act. A piston rod is coupled to the hydraulic cylinder and has an impact surface at its lower end against which the partial pistons may act. The impact surface forms a first partial impact surface against which the first partial piston acts, and forms a second partial impact surface against which the second partial piston acts. The first and second partial impact surfaces do not overlap each other in direction across to the traversing direction.