Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A rotary shaft is rotatable relative to a motor rotor. A first end face of the motor rotor is exposed to the outside of a stator. A hammer portion is provided at the first end face. The hammer portion is configured to be movable as the motor rotor rotates. A collision portion rotating integrally with the rotary shaft is configured to collide with the hammer portion. The allowance space between the collision portion and the hammer portion allows the hammer portion to be move relative to the collision portion. Therefore, the electric pump is capable of detaching a rotor from a pump chamber without increasing the size of the pump.

Abstract: A refrigerant gas compressor includes a cylinder block formed with plural cylinder bores, a first housing disposed at the one end of the cylinder block, a second housing disposed at the other end of the cylinder block, a drive shaft supported by the cylinder block and one of the housings, a crank chamber formed in one of the housings, a suction chamber and a discharge chamber formed in one of the housings, a valve plate assembly disposed between the cylinder block and at least one of the housings, a stepped portion formed adjacent to the valve plate assembly to receive a part of the valve plate assembly. A storage chamber is provided for reserving therein oil separated from refrigerant gas. An oil groove is formed by the stepped portion and the valve plate assembly and connecting the storage chamber with one of the crank chamber and the suction chamber.

Abstract: An inverter assembly includes a substrate, a capacitor assembly and a coil, a varistor and a base. The base fixes and supports thereto the substrate, the capacitor assembly, the coil, and the varistor, and is detachably fixed together to a first housing with screws.

Abstract: A blood pump comprises a pump housing; a plurality of rotors positioned in said housing, each rotor comprising an impeller having a hydrodynamic surface for pumping blood; and a motor including a plurality of magnetic poles carried by each impeller, having motor stators, each including electrically conductive coils located adjacent to or within the housing. At least one of the rotors is adopted to rotate clockwise, and at least one of rotors is adopted to rotate counterclockwise. By this means, stator or stationary blades between the rotors may not be needed.

Abstract: A pump structure connectable with an aircushion or a bladder. The pump structure includes: a flexible main body defining a valve room in which a relief valve is arranged and a compressible chamber; a one-way valve permitting the fluid to one-way flow into the chamber; and a thin membrane-type check valve. The check valve has a first end and a second end, which are operable between opened position and closed position. The first and second ends respectively communicate with the chamber and an output tube, which is connectable with the aircushion or bladder. The first and second ends of the check valve are respectively positioned in spaces provided by the chamber and the valve room. A substrate board is disposed under the flexible main body. The substrate board has a through hole and a notch formed on positions where the first and second ends of the check valve are formed.

Abstract: Disclosed herein is a linear compressor wherein a compression unit, including a cylinder and a linear motor, is supported by a frame mounted in a hermetic container. The frame is die cast using diamagnetic zinc having a high forming accuracy, thereby preventing an electromagnetic force of the linear motor from being leaked therethrough, and enabling a reduction in the number of machining times thereof after die casting.

Abstract: A refrigerating compressor includes a compressing element and a hermetic container accommodating the compressing element, which includes a compressing chamber where refrigerant gas is compressed, and a suction muffler (118) having a sound deadening space (119) and communicating with the compressing chamber. The suction muffler (118) includes a tail tube (121) having a first end open into the hermetic container and a second end open into the sound deadening space (119), and a resonating chamber (122) formed attached to the tail tube (121) and having a resonance frequency substantially agreeing with a specific resonance frequency of the hermetic container. This structure allows the resonating chamber (122) to deaden the noises coming from vibration sounds of a suction valve or ripple sounds of refrigerant gas.

Abstract: A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

Abstract: A centrifugal-type ejector machine of the invention comprises a sealed housing with a rotating rotor. The interior of the housing is filled with a liquid. The rotor has a central axial opening and is provided with a plurality of radial channels leading to the outer periphery of the rotor in a substantially tangential direction to the rotor periphery. The device operates as a compressor or a vacuum chamber based on the principle that difference of speeds between the periphery of the rotating rotor and stationary liquid created a negative pressure at the exit of radial channels of the rotor connected to the source of gas, which is extracted from the channels of the rotor into liquid and is removed through the outlet port of the compression chamber. In case the device works as a vacuum chamber, evacuation occurs through the aforementioned radial channels and the hollow shaft of the rotor.

Abstract: A rotary shaft is rotatable relative to a motor rotor. A first end face of the motor rotor is exposed to the outside of a stator. A hammer portion is provided at the first end face. The hammer portion is configured to be movable as the motor rotor rotates. A collision portion rotating integrally with the rotary shaft is configured to collide with the hammer portion. The allowance space between the collision portion and the hammer portion allows the hammer portion to be move relative to the collision portion. Therefore, the electric pump is capable of detaching a rotor from a pump chamber without increasing the size of the pump.

Abstract: Systems and methods for monitoring operation of a pump, including verifying operation or actions of a pump, are disclosed. A baseline profile for one or more parameters of a pump may be established. An operating profile may then be created by recording one or more values for the same set of parameters during subsequent operation of the pump. The values of the baseline profile and the operating profile may then be compared at one or more points or sets of points. If the operating profile differs from the baseline profile by more than a certain tolerance an alarm may be sent or another action taken, for example the pumping system may shut down, etc.

Abstract: Embodiments of the present invention are related to a pumping system that accurately dispenses fluid using a multiple stage (“multi-stage”) pump. More particularly, embodiments of the present invention provide for control of a feed stage pump to regulate fluid pressure at a downstream dispense stage pump. According to one embodiment of the present invention, a pressure sensor at the dispense stage pump determines the pressure in a dispense chamber. When the pressure reaches a predefined threshold, the dispense stage pump can begin to increase the available volume of the dispense chamber, thereby causing the pressure in the dispense chamber to drop. As the pressure decreases/increases at the downstream pump, the pressure applied by the upstream pump can bed increased/decreased.

Abstract: A turbomachine, particularly an exhaust gas turbocharger, comprising a compressor wheel arranged in a compressor housing, a turbine wheel arranged in a turbine housing, and a rotor shaft which is guided in a bearing casing and which has fastened thereto the compressor wheel on the one hand and the turbine wheel on the other hand, a rotor-shaft seal being arranged between a turbine-sided end portion of the bearing casing and the rotor shaft.

Abstract: A blower has an air channel housing that defines an air channel therein, the air channel housing having an air outlet extending therefrom. A plurality of air blades are positioned inside the air channel housing, and positioned horizontally with respect to a surface on which the blower is supported. A base seat is positioned below the air channel housing, the base seat having a side wall, with an air inlet provided in the side wall. A motor is positioned in the base seat and has a shaft that extends through the air channel housing to be coupled to the air blades.