A modular multi-channel syringe pump assembly includes a chassis in which are mounted two or more parallel syringe banks. Each syringe bank includes a syringe for retaining a fluid in a chamber with a syringe plunger for drawing fluid into or forcing fluid out of the chamber. A syringe drive actuator includes a syringe drive motor and a mechanical linkage for activating the syringe. At least one position sensor detects syringe position and generates a position signal corresponding to the syringe position. A controller receives the position signal for each syringe bank and generates control signals for operation of the two or more syringe banks.

A well management system provides Internet-enabled monitoring, configuration, and control of a well system that may include a pump and a pressure tank. A controller is operatively coupled to the pump. The controller controls the pump based on pressure readings from a pressure sensor to maintain a configured pressure range within the system. The controller can communicate with a management system via a communications network. The management system is further in communication with one or more client devices, which may be associated with a homeowner, a service provider, a manufacturer, or the like. Via the management system, the client devices can receive information from the controller and send commands to the controller.

A mass flow controller assembly includes a housing defining a cavity, a plurality of internal passages, a first inlet, a first outlet, a second inlet, and a second outlet. A valve is connected to the housing, has an inlet fluidly coupled to the second outlet of the housing and an outlet fluidly coupled to the second inlet of the housing. The valve is configured to control fluid flow from the second outlet of the housing to the second inlet of the housing. A microelectromechanical (MEMS) Coriolis flow sensor is arranged in the cavity, includes an inlet fluidly coupled by at least one of the plurality of internal passages to the first inlet of the housing and is configured to measure at least one of a mass flow rate and density of fluid flowing through the MEMS Coriolis flow sensor. An outlet of the MEMS Coriolis flow sensor is fluidly coupled by at least one of the plurality of internal passages to the second outlet of the housing. The second inlet of the housing is fluidly coupled by at least one of the plurality of internal passages to the first outlet of the housing.

An embalming machine including a housing, at least one fluid tank supported by the housing, a plurality of hose segments disposed at least partially within the housing, a pump, a pressure gauge, and a first solenoid is disclosed. The pump is engaged with at least one hose segment of the plurality of hose segments. The pressure gauge is configured to read a pressure of the fluid flowing therethrough. The first solenoid is configured to allow fluid to flow therethrough when current is applied to the first solenoid, and is configured to prevent fluid from flowing therethrough when no current is applied to the first solenoid.

A valve includes a valve cover, the valve cover including a solenoid attachment portion defining a threaded solenoid attachment sink and a valve cover mechanical stop; and a solenoid, the solenoid including a solenoid body, a valve cover attachment portion defining a threaded attachment portion engageable with the threaded solenoid attachment sink, the solenoid body including a solenoid mechanical stop, the solenoid mechanical stop engageable with the valve cover mechanical stop; wherein the valve cover mechanical stop and the solenoid mechanical stop are configured to create a sound upon engagement with each other.

A reference volume for use with pressure change flow rate measurement apparatus has an internal structure comprising elements with cross section and length comparable to the cross section and length of adjacent interstitial fluid regions. The reference volume may have one or more heat conduction elements exterior to and in good thermal contact with a corrosion resistant material that defines the internal fluid holding region.

A smart electronic power steering system and method for a retrofitted electric vehicle are provided. In one embodiment, an electronic power steering system comprises a relief valve; a pump in communication with the relief valve; a motor configured to operate the pump; a motor controller configured to control the motor; and a processor. The processor is configured to receive a desired maximum pressure value from a retrofitted electric vehicle and configure the relief valve or motor controller to provide relief at the desired maximum pressure value; and receive a desired flow rate from the retrofitted electric vehicle and configure the motor controller to operate the motor at a speed to achieve the desired flow rate. Other embodiments are provided.

Mass flow control methods and systems are described enabling rate of decay measurements with an orifice (or flow restrictor) located between the control volume and the outlet valve such that the outlet valve acts as the valve restricting backpressure. The system may include a main flow path and a reduced flow path that split the gas flow based on the received set point and backpressure. Measuring valve coil temperature may be used by measuring voltage and current of the valve of known resistance at room temperature and using copper coefficient of thermal resistivity delta. This temperature data may improve adjacent transducer temperature data and adjust the transducer output. Flow calculation during a long ROD pressure drop (in reduced flow rate) by making smaller flow calculation during sub section of the same, adjusting the control loop of delivered flow in real time while the ROD is still going and repeating.

A method for regulating a volume flow rate, and a test stand with a liquid circuit for carrying out the method is provided. A pump and a flow control valve are connected in series in the liquid circuit, and the orifice width of the flow control valve is set as a function of a setpoint value of the volume flow rate of the liquid, in order to specify, on the basis of the orifice width, a characteristic curve of the pump that plots the volume flow rate over the differential pressure. Once a characteristic curve has been specified, the differential pressure of the pump is set such that the volume flow rate corresponds to the setpoint value of the volume flow rate.

The invention relates to a control method for a secondary dust removal system in which a pipe network connects an induced draft fan to at least two suction points. The pipe network comprises a controllable exhaust air flap for each suction point, the position of said flap influencing the volumetric flow rate at the suction point. A mathematical model of the pipe network allows the method to energy-efficiently control the exhaust air flaps and the induced draft fan.