1615 results about "Pressurizer" patented technology

This invention provides a medical device for delivering volumetric quantities of a first and a second biochemically reactive fluid comprising a first container having an opening, the first container being adapted to contain the first biochemically reactive fluid; a second container having a second fluid opening adjacent the first fluid opening, the second container being adapted to contain the second biochemically reactive fluid; a spray unit for separately atomizing the first and second biochemically reactive fluids into an aerosol with at least one energy source of a liquid energy, a mechanical energy, a vibration energy, and an electric energy; a fluid pressurizer for pressurizing the first and the second biochemically reactive fluids for delivery under pressure through the spray unit onto a surface; and wherein the first and second biochemically reactive fluids first mix on the surface.

A pressure operated valve is provided including an adjusting device, a spring and a vent connection. The adjusting device is axially movably arranged in a pressure chamber defined in the valve and comprises a valve body and a pressure intensifier. A space between the valve body and valve face defines a valve passage cross section. The spring is operatively arranged for holding the pressure intensifier in a floating arrangement in the pressure chamber. The pressure intensifier has a first side exposed to a pressure in the pressure connection opening and a second side facing away from the pressure connection opening. The second side of the pressure intensifier and the adjusting device define a low pressure chamber within the pressure chamber. The vent connection is an inflow restrictor arranged between the lower pressure chamber and a space having a lower pressure than the low pressure chamber.

In fuel injector including an accumulator and an intensifier, fuel is injected such that an injection control valve and a piston control valve are individually controlled, an operational phase difference therebetween is regulated, and at least one of a maximum injection pressure, a rate of increase of an injection pressure at the start of an increase of pressure, a rate of decrease of the injection pressure at the completion of injection, a pilot injection pressure, and an after injection pressure of fuel injected from a fuel injection nozzle is arbitrarily changed. Namely, a pressure during a movement from a base common rail pressure of the accumulator to a static maximum pressure statically determined by an operation of the intensifier is positively used as a control factor of injection, whereby a fuel injection pattern can be implemented with an extremely high degree of freedom.

The invention concerns turbochargers, or more particularly to multivariable dual stage series turbochargers having two degrees of freedom. A multistage series turbocharger apparatus has a low pressure turbocharger comprising a low pressure compressor and a low pressure turbine; a high pressure turbocharger comprising a high pressure compressor and a high pressure turbine, and a exhaust gas recirculation device. A controller controls the operation of at least two of the low pressure compressor, high pressure compressor, low pressure turbine, high pressure turbine, and exhaust gas recirculation device such that at least one operating parameter is maintained at about a selected value.

This invention relates to a turbocharger multiple-series adjustable boost system, which belongs to combustion engine technique field. The system comprises diesel engine air inlet pipe, diesel engine, diesel engine discharge pipe, high-pressure turbine stage by-pass conduit and by-pass valve, high-pressure turbine stage by-pass conduit, high-pressure turbine stage, high and low pressure turbine connecting pipe flow change-over valve, high and low pressure turbine connecting pipe, low-pressure turbine stage by-pass conduit, low-pressure turbine, intercooler, high booster by-pass conduit and by-pass valve, high booster by-pass conduit, high blower, high and low pressure booster connecting pipe flow change-over valve, high and low pressure booster connecting pipe, low pressure booster by-pass conduit and low pressure booster, wherein the diesel engine is connected with diesel engine air inlet pipe and diesel engine discharge pipe separately, and the high pressure turbine outlet is connected with the low pressure turbine through the high and low pressure turbine conduit. By said invention, it can realize single-stage turbocharging, successive turbocharging and two-stage turbocharging.

A droplet ejection device includes a liquid ejection head, a supply flow path, a supply pump, and a supply flow path pressurizer. The supply flow path supplies the liquid to the head and for which a first depressurization threshold is specified in advance. The supply pump sucks the liquid, pressurizes the sucked liquid and supplies the sucked liquid to the head via the supply flow path, and keeps a pressure of liquid in the supply flow path near to a predetermined supply flow path target pressure. The supply flow path pressurizer pressurizes the pressure of liquid in the supply flow path if the pressure of liquid in the supply flow path falls to less than or equal to the first depressurization threshold.

A turbocharger (107) for an internal combustion engine (100) includes a turbine having a divided turbine housing (109). A first inlet port (113) may be connected to a first volute that is formed in the turbine housing (109), and a second inlet port (114) connected to a second volute that is formed in the turbine housing (109). A center housing may be connected to the turbine housing (109), and a compressor (111) may be connected to the center housing. An exhaust gas valve (137) is in fluid communication with the first inlet port (113) and arranged to at least partially constrict a flow of exhaust gas from entering the first inlet port (113) of the turbine (109), but not constrict the flow of exhaust gas from entering the second inlet port (114).

The present invention is a an exhaust gas return system (10) for reintroducing condensate generated in exhaust gas from an engine (14) into a compressor (36) of a turbocharger (18), having a turbocharger unit (18) having a turbine (20) and a compressor (36), and a compressor wheel (42) located inside the compressor (36). The present invention also includes a mixing pipe (52) located inside an intake tube (44) for receiving exhaust gas with droplets (54) from an EGR-tube (46), wherein the EGR-tube (46) delivers the exhaust gas with droplets (54) to the mixing pipe (52), mixing the air (41) and the exhaust gas with droplets (54) forming a mixture (64) containing droplets (50), and introducing the mixture (64) and the droplets (50) onto the compressor wheel (42) in an area of low circumferential speed, preventing damage to the compressor wheel (42).

A vehicle includes an engine, a booster, an exhaust gas sensor and a self-calibration arrangement for the exhaust gas sensor. When sensor calibration check is desired, a controlling unit opens a valve in order to subject a sensing element of the sensor to a supply of gas having a known gas concentration. Gas concentration signals from the sensor are compared with known concentration values, with the results being used to re-calibrate the sensor. The supply of gas can be received directly from the booster or from an optional reservoir. The invention is particularly applicable for use with a universal exhaust gas oxygen sensor in a vehicle powered by a diesel engine.

A refrigerant system, which utilizes CO₂ as a refrigerant, includes a main closed-loop refrigerant circuit and a booster closed-loop refrigerant circuit. A heat accepting heat exchanger, which provides extra cooling for the refrigerant circulating through the main circuit, and thus improves refrigerant system performance, also serves as a shared component coupling the two circuits through heat transfer interaction. Various schematics and configurations for the booster circuit, which may be combined with other performance enhancement features, are disclosed. Additional benefits for economizer function, “liquid-to-suction” heat exchanger, intercooling and liquid injection are also presented. The booster circuit may also contain CO₂ refrigerant.

A pressurizer device (1) is provided for maintaining pressure in the cement in a bone cavity during introduction of a prosthetic component, for example, a replacement hip stem. The pressurizer device (1) has a collar (4) and a hood (3). The hood (3) has a hoop (20) which arches across the central opening (14) of the collar (4). The hood (3) can be provided with or without a lining.

A servo valve for actuating a pressure booster of a fuel injector, the pressure booster having a work chamber separated by a booster piston from a differential pressure chamber and the pressure change in the differential pressure chamber of the pressure booster is effected via the servo valve, via switching valve. The control chamber of the servo valve can both be made to communicate with a high-pressure source and pressure-relieved into a low-pressure-side return, and for generating a fast closing motion at the valve piston, a pressure shoulder acting in the closing direction of the valve piston is embodied between the control chamber and the hydraulic chamber, and control edges without a common opening phase are embodied on the valve piston.

An inkjet printing apparatus includes: an inkjet head configured to discharge ink; a first tank configured to store ink to be supplied to the inkjet head; a second tank configured to store ink not consumed by the inkjet head; an ink circulation path for circulation of ink among the first tank, the inkjet head, and the second tank; a pressurizer configured to provide the first and second tanks with a pressure for the circulation of ink through the ink circulation path; a first pressure adjuster configured to adjust a pressure inside the first tank during the circulation of ink; and a second pressure adjuster configured to adjust a pressure inside the second tank during the circulation of ink.

A supercharged internal combustion engine system wherein the supercharger assembly includes an ejector pump driven by high-pressure air for pumping intake air into engine combustion chamber. Included are means for sensing engine power demand and controlling the supercharging action. A compressor and an air tank for providing high-pressure air for driving the ejector pump are also disclosed. During periods of natural aspiration the ejector pump can be by-passed to reduce flow impedance. The ejector pump can use a driving nozzle with a fixed throat or a variable throat, or a lobed nozzle. Effective supercharging is achieved even at low engine speeds. One of the objects of the invention is to obtain more power from small displacement ICE and thus providing automotive vehicles with sufficient acceleration in addition to good fuel economy.

A pressure vessel fatigue test system belongs to pressure vessel test technical field, comprising oil circuit pressure device, pressurizer, weight relieving motion, and measuring and control system. The oil circuit pressure device, pressurizer, weight relieving motion consists of pump linked by pipeline and oil pump driven by electric machinery, solenoid valve, overflow valve, water cooled oil cooler, back oil filtration device, oil tank and pipelines linked with them, the measuring and control system is consisted of electric contact pressure gauge, temperature sensor, pressure sensor, computer, controller for measurement and control temperature of pressure vessel, hydraulic oil, one-way throttle valve and high pressure filtration device are fitted with pipeline linked with solenoid valve and the container, stabilization tank is fitted with oil return pipe linked to solenoid valve and oil tank. The invention is suitable for fatigue test of pressure vessel containing impurity within and fairly high pressure needed and reconstruction to present pressure vessel fatigue test device.

The invention relates to a method for controlling the boost pressure on an unsteady-running piston internal combustion engine with a turbocharger. According to the inventive method, a blow-off valve, which is connected upstream from the supercharger turbine in the exhaust gas tract, is controlled by an engine control, the position of the pedal and a boost-proportional gradient are detected by the engine control when initiating an acceleration operation and, when a predeterminable value for the boost-proportional gradient is surpassed, the blow-off valve is actuated in an opening direction in order to effect a predeterminable controlled increase of pressure.