A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The at least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).

A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).

An electrofluidic assembly and method for its operation. The functions of a reciprocating pump and of a valve should be combined in one assembly. Here, in particular the pump and the valve should interact so that a small number of line connections are required. A pump assembly and a valve are arranged on an identical central line and use a bearing rod jointly for movable bearing of a first solenoid armature which activates a displacement apparatus of the pump assembly on one hand and a second solenoid armature of the valve which activates a group of closing bodies on the other hand. The electrofluidic assembly can be used for monitoring tank systems.

A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The at least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).

A system may comprise a first sensor; a second sensor; and an electronic control module. The electronic control module may be configured to determine a flow of the fluid based on information regarding the pressure from the first sensor and information regarding the temperature from the second sensor; determine a portion of the flow of the fluid that is directed to a particle counter of the machine; receive, from the particle counter, information identifying a quantity of particles in the portion of the flow of the fluid; determine a quality of the fluid based on the quantity of particles; determine whether the flow of the fluid exceeds a flow threshold or whether the quality of the fluid is less than a quality threshold; and take a remedial action when the flow of the fluid exceeds the flow threshold or the quality of the fluid is less than the quality threshold.

Systems and methods for diagnosing and operating an engine with a fuel pump that supplies fuel to a fuel injector that may be temporarily deactivated are described. In one example, injection of fuel may commence in response to a level of lubrication of a fuel pump. The system and methods may extend fuel pump life in systems where fuel injection may be deactivated.

A device disclosed herein is used with an electric submersible pump (ESP) assembly disposed on tubing in a well. A housing of the device connects between tubing and pump. A shaft in the housing can rotate in response to imparted rotation associated with the pump and permanent magnet (PM) motor. A piston in the housing can move longitudinally relative to the shaft in response to a pressure differential across the piston. A clutch on the piston can engage and disengage with a distal end of the shaft in response to the piston's movement of the piston. Additionally or alternatively, a key on the piston can engage and disengage with a pocket on the shaft. The engagement of the clutch and/or key can prevent imparted rotation associated with the pump and the PM motor.

A system may comprise a first sensor; a second sensor; and an electronic control module. The electronic control module may be configured to determine a flow of the fluid based on information regarding the pressure from the first sensor and information regarding the temperature from the second sensor; determine a portion of the flow of the fluid that is directed to a particle counter of the machine; receive, from the particle counter, information identifying a quantity of particles in the portion of the flow of the fluid; determine a quality of the fluid based on the quantity of particles; determine whether the flow of the fluid exceeds a flow threshold or whether the quality of the fluid is less than a quality threshold; and take a remedial action when the flow of the fluid exceeds the flow threshold or the quality of the fluid is less than the quality threshold.

A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).

A device disclosed herein is used with an electric submersible pump (ESP) assembly disposed on tubing in a well. A housing of the device connects between tubing and pump. A shaft in the housing can rotate in response to imparted rotation associated with the pump and permanent magnet (PM) motor. A piston in the housing can move longitudinally relative to the shaft in response to a pressure differential across the piston. A clutch on the piston can engage and disengage with a distal end of the shaft in response to the piston's movement of the piston. Additionally or alternatively, a key on the piston can engage and disengage with a pocket on the shaft. The engagement of the clutch and/or key can prevent imparted rotation associated with the pump and the PM motor.