Abstract: The invention is an elongate intracorporeal member having a polymer jacket secured to a high strength shaft with the polymer jacket having an outer layer of polymeric material and an inner layer formed of polymeric adhesive. In one embodiment, a balloon catheter has a proximal high strength tubular section with a polymer jacket having an polymeric outer layer and an adhesive polymer inner layer. In another embodiment, a guidewire has an elongate core with polymer jacket disposed about at least a portion of the elongate core, wherein the polymer jacket comprises a polymeric outer layer an inner layer of polymeric adhesive disposed between and bonding the outer layer to the elongate core.

Abstract: The mobile part of a fan includes at least one rotor of an electric motor and fan blades integral with the rotor. A rotating fixed part includes at least one stator of the electric motor. The fan additionally includes at least part of the electric motor that includes the stator arranged in an enclosed chamber. The motor-operated fan includes structure for guiding a first fluid passing through at least one of the mobile part and fixed part of the motor-operated fan between a fist zone with a first pressure of the first fluid outside the enclosed chamber on a first side of the blades of the motor-operated fan in an axial direction, and a second zone with a second pressure on a second side of the blades of the motor-operated fin outside the enclosed chamber, the second pressure being less than the first pressure.

Abstract: The present invention is a percutaneous catheter assembly intended for long-term blood flow of several days, said assembly comprising generally three components: a catheter housing having three sections, each of preferably differing diameter, with a set of perforations in a distal section, an end cap for closing off a proximal end of the catheter housing during insertion, and a dilator having an outer diameter substantially the same size as the inner diameter of the smallest section of the catheter housing, the dilator being configured to pass radiopaque contrast through a first and second set of openings in the dilator and the perforations in the catheter housing. The present invention further comprises a method of percutaneous blood perfusion in which the catheter assembly is used without the need for an introducer sheath.

Abstract: Cooling fan with a fan wheel equipped with blades and an electric motor that has a stator and a rotor that is supported in a rotationally fixed manner on a driven shaft. For a purpose of a cost-saving and compact design of the cooling fan with low fan noise, the rotor is embodied as an external rotor with a bell-shaped pole housing encompassing the stator. The fan wheel is rotationally fixed in relation to the pole housing so that the fan wheel axially encompasses the pole housing at least partially and contacts the outer circumference of the pole housing at a number of points.

Abstract: A method and system for forming a medical device component having a section with a reduced wall thickness, and the device component formed thereby. The method generally comprises rotating a medical device component while a material removal device is placed into contact with a section of the rotating component, to thereby remove material therefrom. In one embodiment, the medical device component is a catheter balloon in which at least one of the proximal and distal shaft sections of the balloon is thinned according to the method of the invention. In another embodiment, the component is a polymeric tube, including polymeric tubes useful in forming a distal tip or catheter shaft section of a catheter.

Abstract: A control valve for a variable capacity compressor, which comprises a solenoid magnetization portion disposed at a central portion, a main body disposed on one side of the solenoid magnetization portion, and a pressure sensitive portion disposed on the other side of the solenoid magnetization portion. The main body comprises a discharge coolant port communicating with a discharge pressure region of the variable capacity compressor, a first intermediate coolant port communicating with a first intermediate pressure region, a suction coolant port communicating with a suction pressure region, and a second intermediate coolant port communicating with a second intermediate pressure region of the variable capacity compressor.

Abstract: An improved fluid proportioner. For improved fluid flow, a body is configured to direct a first fluid wherein at least one fluid gate housing is removably fixed to the body. A bearing pressurably is fitted within the at least one fluid gate housing to seal the first fluid within the body. A fluid gate is disposed within the body configured to gate the first fluid to alternating sides of a motor cylinder having a motor piston sealably disposed within. The motor piston has a cap attached at an end wherein the cap has a concave annular groove. A seal is surroundably disposed around the concave annular groove which radially extends beyond the cap to pressurably engage against the motor cylinder to reduce friction. A slave pump has a inlet valve and a outlet valve with an inlet raised base formed around an inlet orifice and an outlet raised base formed around an outlet orifice.

Abstract: A pump comprises a first substrate having a fluid inlet port for receiving a fluid, a fluid outlet port for discharging the fluid, a first pumping section for pumping the fluid from the fluid inlet port to the fluid outlet port, a first inlet valve section disposed between the fluid inlet port and the first pumping section, and a first outlet valve section disposed between the fluid outlet port and the first pumping section. A second substrate has a second pumping section, a second inlet valve section, and a second outlet valve section. An intermediate substrate is disposed between the first and second substrates to form a first fluid feeding path and a second fluid feeding path for feeding the fluid pumped by the first and second pumping sections. The first fluid feeding path extends from the first inlet valve section to the first outlet valve section through the first pumping section.

Abstract: A fan motor with constant speed control comprises a microprocessor system, a bus control logic, a register for actual fan speed, a register for fan state, a register for speed set-up, a linear variable voltage circuit control logic, and a braking/running enabling control logic. The microprocessor system is connected via the bus control logic to the register for actual fan speed, the register for fan state, and the register for speed set-up. The register for fan state sets up enabling of braking and running by means of controlling output voltage by the braking/running enabling control logic. The register for speed set-up sets up speed values by the microprocessor system. After comparing a speed value to an actual fan speed signal by the linear variable voltage circuit control logic, the linear variable voltage circuit control logic generates a linear variable voltage (drive voltage) which is outputted to the fan via the braking/running enabling control logic.

Abstract: A variable displacement swash plate type compressor which incorporates a lubrication passage formed in a cylinder block and crankcase, and a spray nozzle disposed at the crankcase end of the lubrication passage. The lubrication passage provides fluid communication between an oil sump and the spray nozzle, and the spray nozzle causes lubricating oil to be efficiently distributed as a fine mist or spray to the crank chamber. The lubrication passage and spray nozzle maximize the flow of refrigerant gas and lubricating oil to the crank chamber under all operating conditions providing cooling and lubrication to the internal moving components within the crankcase.

Abstract: The invention relates to a method for controlling a compressor installation with at least one lubricated screw-type compressor element (1) connected to a pressure vessel (11) which is driven by an electric motor (10) which is regulated in function of the compression pressure, and which compresses the gas supplied through the gas inlet conduit (2). The return flow of lubricating agent through the return conduit (7) also is determined by a controlled valve (9) which is provided with a calibrated opening (29) and which is controlled by control means (43) which, as the number of revolutions of the screw-type compressor element (1) has dropped below a well-defined value, put the controlled valve (9) into the position in which it restricts the return flow of lubricating agent to a flow through the calibrated opening (29).

Abstract: A blower for cleaning a surface is provided. The blower includes a radial blower that is driven by a motor and includes an impeller that is rotatable about a blower axis and a housing that at least partially surrounds the impeller. In the area of the blower axis, the housing is provided with an intake opening on an end wall that is disposed approximately perpendicular to the blower axis. A damping bell is disposed on the end wall in the region of the intake opening. The damping bell is provided with a damping panel that is disposed approximately parallel to and at a distance from the end wall, and covers the intake opening. The damping bell also includes a bell wall that extends about the intake opening and the damping panel in a collar-like manner. At least one intake window is provided in the bell wall.

Abstract: A through-flow blower assembly includes a housing that carries a motor assembly. The motor assembly has a stator, and a rotor that rotates a shaft when energized. The rotor has openings therethrough. A fan shell has an axial opening and is coupled to the housing. At least one rotating fan is carried by the shaft. The rotating fan draws working air through said axial opening and exhausts the working air through an exhaust port of the housing. The rotating fan has a diameter larger than the rotor. A cooling fan is attached to the rotor and includes a fan disc and a fan ring. The fan disc is connected to the fan ring by a plurality of blades, said fan ring having an eye that is directly adjacent the rotor openings. The cooling fan has a diameter no larger than said rotor. As the rotor rotates, the cooling fan draws a portion of the working air over the motor assembly for cooling purposes. Stationary fans may be carried by the fan shell if more than one rotating fan is provided.

Abstract: A refrigerant passage within a main shaft includes an axial refrigerant passage extending in parallel with the main shaft from the end surface thereof, and a radial refrigerant passage communicating with the axial refrigerant passage and extending radially outwardly. The radial refrigerant passage is located between the end surface of the main shaft and a motor rotor. Thus, when the main shaft rotates, suctioned refrigerant is uniformly sprayed toward an entire coil. Further, the refrigerant flows toward a compression mechanism through the electric motor, thereby cooling the electric motor effectively.

Abstract: The invention relates to a piston pump for a slip-controlled hydraulic vehicle brake system. To make a piston of the piston pump easy and inexpensive to manufacture, the invention proposes that the piston be comprised of a sleeve-like shaped part and a valve seat part that is made of plastic and is press-fitted into the shaped part. A high-pressure-side sealing lip is formed onto the valve seat part and is of one piece with it. By means of a tubular support body, a restoring spring is supported on the valve seat part spaced apart from a valve seat of the valve seat part and spaced apart from the sealing lip, which prevents the valve seat and the sealing lip from being impaired by the force of the restoring spring.

Abstract: The invention relates to a method for generating over-pressure gas by means of a kinetic compressor which is coupled to a high-speed electric machine located on the same shaft with the compressor and comprising a rotor whose rotational speed is over 20,000 rpm. The compressor is provided with at least two stages. The shaft of the rotor is mounted on a magnetic and/or gas bearings, and the high-speed electric machine is placed centrally on the shaft with respect to the compressor stage of the compressor. The rotor is mounted on a magnetic bearing at least in the axial direction, and the ends of the rotor are used at least partly as counter surfaces for the axial magnetic bearing.

Abstract: In a pump, particularly for cooling water, with an impeller wheel (2) that is supported so that it can rotate in a pump chamber (6), an excitation device (12) for driving the impeller wheel (12) to rotate, and a control circuit (19) for the excitation device (12), the control circuit (19) and the excitation device (12) are thermally separated from one another by the pump chamber (6). The waste heat of the excitation device (12) is removed by the fluid circulating in the pump chamber (6) to the extent that the control circuit (19) is prevented from overheating.

Abstract: A pumping system for a fuel injection system includes a body defining a high pressure pumping chamber, a plunger, a high pressure outlet, a high pressure fluid line connecting the pumping chamber to the outlet, a control valve along the fluid line, and a valve and restriction arrangement along the fluid line. The valve and restriction arrangement includes a restriction and a valve body. The valve body is movable between an open position in which fuel flow from the pumping chamber is generally unrestricted by the restriction and a closed position in which fuel flow from the pumping chamber is significantly restricted by the restriction to store energy in the pumping chamber. Advantageously, the high pressure restriction concept may be utilized in a pumping system for various types of rate shaping, including boot injection and square injection, in addition to pilot operation and post injection operations, and others.

Abstract: A positive displacement engine with integrated positive displacement rotary fluid compressor has a piston chamber, a piston disposed in the piston chamber, a rotary compressor housing, the rotary compressor housing have first and second interconnected rotary compressor chambers, and first and second rotary compressor elements disposed in the first and second rotary compressor chambers, respectively. The first and second rotary compressor elements each have an elongated arm portion pivotally connected to the piston, and have a generally circular base portion eccentrically pivotally connected to first and second crankshafs. The first and second crankshafts are interconnected to rotate synchronously in opposite directions such that the rotary compressor elements rotate, eccentrically about the crankshafts, within the rotary compressor chambers, synchronously in opposite directions.

Abstract: Direct drive variable displacement pumps that provide variable displacement wherein a swashplate pivots and changes the angle position in the direct drive variable displacement pumps. The swashplate is also capable of changing the stroke length of pistons in such direct drive variable displacement pumps and rotation of a rotating shaft is converted into axial or radial movement. In direct drive variable displacement pumps in accordance with the present invention, plungers and their respective plunger housings do not rotate relative to the rotating shaft while the swashplate rotates with rotating shaft. In addition, hydraulic control pistons are preferably used to change the angle of the swashplate and these hydraulic control pistons rotate with the rotating shaft.