Abstract: A radial piston pump has a plurality of cylinders within which pistons reciprocally move. Each cylinder is connected to a first port by an inlet passage that has an inlet check valve, and is connected to a second port by an outlet passage that has an outlet check valve. A throttling plate extends across the inlet passages and has a separate aperture associated with each inlet passage. Rotation of the throttling plate varies the degree of alignment of each aperture with the associated inlet passage, thereby forming variable orifices for altering displacement of the pump. Uniquely shaped apertures specifically affect the rate at which the variable orifices close with throttle plate movement, so that the closure rate decreases with increased closure of the variable orifices.

Abstract: A continuous flow wood processing technology for extracting lignin from woody plant material and converting the delignified cellulosic residue to crude bio-oils is provided. Wood is chipped before processing starts and fed into a lignin extractor. The lignin extractor uses ethanol at high temperatures to dissolve the lignin with counter current material contactors. The ethanol containing dissolved lignin is removed from the lignin extractor, the dissolved lignin recovered, the ethanol and residual heat being recycled into the lignin extractor. The delignified cellulosic pulp is removed from the lignin extractor and subjected to a milling operation to convert the pulp into a smooth sludge for entry to a bio-convertor by a super critical water process. The product from this convertor is hydrocarbon sludge with a principal component being a kerogen. In a separate process crude oil is extracted from this sludge and the residue is prepared as a high phosphate Fertilizer.

Abstract: The fluidic system including a sheath pump that pumps sheath fluid from a sheath container into an interrogation zone, a waste pump that pumps waste fluid from the interrogation zone to a waste container, in which the flow rate of the sheath fluid is different from the flow rate of the waste fluid thereby drawing a sample fluid from a sample container into the interrogation zone, a detection system that provides a data set of input signals from the sample fluid, an analysis engine that recognizes aggregate particle events in the data set, and a controller that automatically adjusts the flow rate of the sample fluid into the interrogation zone based on the recognition of aggregate particle events, by controlling at least one of the flow rates of the sheath fluid and the waste fluid.

Abstract: An extraction system, including a pump to pump gas along a conduit to a check valve configured to open at an upstream pressure over a certain magnitude, a pressure sensor to generate a signal indicative of a pressure of gas between the pump and the check valve, and a controller configured to generate a stop signal if a signal from the pressure sensor indicates that the pressure of gas between the pump and the check valve is below a certain magnitude.

Abstract: A process and device enabling accurate mass flow control is described. A mass flow controller can be re-specified corresponding to multiple types of actual process gases and multiple flow rate ranges, even after the mass flow controller has been shipped. Calibration gas data is derived using actual flow rate versus a flow rate setting signal to generate calibration gas data. Actual gas data is derived by measuring actual flow rate versus a flow rate setting signal for each actual gas and saving. Subsequently, prior to operating the mass flow rate control device, the characteristic data for an actual and the calibration gas characteristic data is recalled. The calibration gas characteristic data is then converted to controlled flow rate correction data based on the actual gas characteristic data that is saved to the control unit and the actual gas flow rate is corrected based on this controlled flow rate correction data.

Abstract: A hydraulic control valve assembly (10), method and system, characterized by control valves (26) each having a variable metering orifice; a compensator (28) that controls flow of fluid from the variable metering orifice to a work port (A,B) in response to a differential in pressures acting on opposite first and second sides of the compensator, wherein a first side receives a pressure at the downstream side of the variable metering orifice; a load sense passage (34) providing a load sense pressure; and a differential pressure controller (40) having a first inlet connected to a pump supply port and a second inlet connected to the load sense passage, the controller having a first operational mode in which load sense pressure at the second inlet is supplied to an outlet of the controller and a second operational mode in which flow from the first inlet is metered to the outlet of the controller to provide a differential control output pressure, and wherein an outlet of the differential pressure controller is conne

Abstract: A variable-capacity compressor that includes a housing having an inlet for receipt of refrigerant and an outlet for return of refrigerant, and a plurality of compressing elements contained in the housing between the inlet and the outlet. The variable capacity compressor includes a valve having an electrical control. The valve is dedicated to fewer than all of the compressing elements. The valve is movable between a first state which communicates refrigerant flow to the compressing elements, and a second state that reduces or stops flow to the compressing elements. In an embodiment of the invention, an unloading controller has an operational modulation mode that includes cycling the valve between on and off states to provide a portion of compressor capacity. The unloading controller is further programmed to provide a minimum delay time between transitions between the first and second states, but no maximum dwell time between transitions.

Abstract: A solution feeding device for feeding a sample solution which is precisely adjusted in the mixed quantity of a standard solution is realized. The solution feeding device comprises: a mixing module (100) including a first passage (101), a second passage (102), and a third passage (103) for providing communications of the midways of those two passages with a higher passage resistance than those of the two passages; a first storage unit (10) communicating with one end side of the first passage for storing a sample solution; a suctioning nebulizer (20) communicating with the other end side of the first passage for sucking the sample solution; a second storage unit (30) communicating through an on-off valve (31) with one end side of the second passage for storing a standard solution; and a syringe pump (40) communicating with the other end side of the second passage for sucking and discharging the standard solution, respectively, in the open state and the closed state of the on-off valve.

Abstract: The invention can provide or facilitate systems and methods for feeding a slurry and, in particular, to systems and methods for treating wastewater streams with a slurry having periodic flushing of conduits.

Abstract: A hydraulic system is disclosed that has first and second passages connecting a pump to an actuator in closed-loop manner, and first and second load-holding valves within the first and second passages. The hydraulic system may also have a regeneration valve connected to the first and second passages between the actuator and the first and second load-holding valves to selectively connect the first and second passages. The hydraulic system may further have a controller configured to cause a control valve to simultaneous move the first and second load-holding valves toward flow-blocking positions when pump displacement is about zero. The controller may also be configured to selectively cause the regeneration valve to connect the first and second passages when pump displacement is non-zero, and to cause only one of the first and second load-holding valves to move to its flow-blocking position when the regeneration valve connects the first and second passages.

Abstract: Embodiments described herein provide micro-fluidic systems and devices for use in performing various diagnostic and analytical tests. According to one embodiment, the micro-fluidic device includes a sample chamber for receiving a sample, and a reaction chamber for performing a chemical reaction. A bubble jet pump is structured on the device to control delivery of a fluid from the sample chamber to the reaction chamber. The pump is fluidically coupled to one or more chambers of the device using a fluidic channel such as a capillary. A valve may be coupled to one or more chambers to control flow into and out of those chambers. Also, a sensor may be positioned in one or more of the chambers, such as the reactant chamber, for sensing a property of the fluid within the chamber as well as the presence of a chemical within the chamber.

Abstract: The invention relates to a lubricant valve for oil pumps of internal combustion engines, in order to supply the bearings and sliding surfaces of the engines with lubricant in an optimum manner in order to reduce the wear. The invention is based on the problem of developing a lubricant valve for oil pumps of internal combustion engines, which lubricant valve combines, in particular, the functions of a cold-start valve and those of a control valve within itself with a minimum amount of installation space and is constructed in such a way that it is insensitive with respect to the wear debris and/or foundry sand which is entrained by the lubricant, in the process makes high throughflow quantities possible, in addition is of inexpensive construction in terms of production and assembly technology and can be produced inexpensively, and, moreover, always operates robustly, reliably and insusceptible to disruptions, even under extreme use conditions.

Abstract: A dispensing apparatus including a suction nozzle having a tip to which a nozzle chip is removably attachable, a moving mechanism for moving the suction nozzle, a suction/discharge pump for supplying a suction/discharge pressure to the suction nozzle, a pressure measurement unit for measuring a pressure in the suction nozzle, and a control unit for controlling amounts of actuation of the moving mechanism and the suction/discharge pump, wherein the suction nozzle is moved toward the surface of a dry analysis element with air being discharged from a tip of a nozzle chip attached to the suction nozzle and the movement of the suction nozzle is stopped at a time point at which the pressure in the suction nozzle is detected to have reached a value corresponding to a predetermined relative distance between the tip of the nozzle chip and the surface of the dry analysis element.

Abstract: A downhole pumping system in production tubing having a seal between the intake and discharge of a through tubing downhole pump that automatically deploys when the pump initiates operation. The seal automatically disengages when the pump suspends operating and redeploys when the pump starts operating again. The pumping system can be set at a different depth before restarting the pump. The seal can include a bladder like member that has an opening facing towards the pump discharge, so that discharged fluid expands the bladder radially outward into sealing contact with the tubing.

Abstract: The present disclosure provides a thermal actuator which comprises at least two containers containing a first fluid. The at least two containers define interior portions that are interconnected such that the interior portions of the containers are in fluidal communication with each other. The first fluid comprises a first liquid component and a second gaseous component. The thermal actuator is arranged such that a change in a temperature difference between one container and the or another container and within a predetermined range of temperature difference causes a quantity of a fluid contained in the thermal actuator to be transferred from the one container to the or another container such that a mass distribution of the thermal actuator is altered in response to the change in temperature difference so as to cause actuation.

Abstract: Systems and methods are provided for hydrogen generation utilizing two or more liquid fuel components, using a fuel delivery system comprising a single reversible or bi-directional pump co-operable with flow control means comprising passive or active valves to deliver two or more fuel components to a mixing zone, reaction zone, or reaction chamber of a hydrogen generation system. The pump is operable in a forward direction to deliver one fuel component, and in a reverse direction to deliver a second fuel component. Control of the pump speed, direction and duty cycle of the pump in continuous or pulsed modes provides for delivery of first and second fuel components in desired proportions, to control hydrogen generation. The system also allows for dilution, mixing and flush cycles to be provided using a single pump, reducing the number of active elements required for fuel delivery and flow control in systems using two or more liquid fuel components.

Abstract: Air required for measurement of exhaust gas components is supplied to an exhaust sensor without using a device for generating positive pressure. In a structure for arrangement, in an engine (1), of an exhaust sensor (10) that measures exhaust gas components and requires air for the measurement of the exhaust gas components, an exhaust pipe (5) of the engine (1) communicates with the exhaust sensor (10) through an introduction pipe (15), the exhaust sensor (10) communicates with an intake pipe (2) of the engine (1) through a discharge pipe (16), and an atmosphere pipe (17) open to the atmosphere is connected to the exhaust sensor (10), so that exhaust gas is sucked into the exhaust sensor (10) through the introduction pipe (15) while air is sucked into the exhaust sensor (10) through the atmosphere pipe (17) due to intake negative pressure generated during an intake stroke of the engine (1).

Abstract: The present invention relates to a crane control system for controlling and/or for the hydraulic supply of hydraulic loads of a crane, as well as a crane having at least one crane control system.

Abstract: Various embodiments described in the application relate to an apparatus, system, and method for generating, within a conduit, discrete volumes of one or more fluids that are immiscible with a second fluid. The discrete volumes can be used for biochemical or molecular biology procedures involving small volumes, for example, microliter-sized volumes, nanoliter-sized volumes, or smaller. The system can comprise an apparatus comprising at least one conduit operatively connected to one or more pumps for providing discrete volumes separated from one another by a fluid that is immiscible with the fluid(s) of the discrete volumes, for example, aqueous immiscible-fluid-discrete volumes separated by an oil.

Abstract: A compressed air supply system for motor vehicles includes a compressor, control electronics, an air dryer having an inlet channel for non-dried compressed air, an outlet channel for the dried compressed air, and a dehumidification device through which the compressed air to be dried can flow, a pressure regulator having an outlet valve for controlling the compressor between an idle phase and a load phase, a multi-circuit safety valve that is connected to the outlet channel of the air dryer via a compressed air line, and over-flow valves for the individual circuits, a regeneration valve and a moisture sensor for detecting the atmospheric moisture in the compressed air flowing in the compressed air line. To reduce the detrimental effects of admixtures and components of the compressed air on the moisture sensor, the moisture sensor is located in a bypass channel of the compressed air line.

Abstract: An apparatus for controlling a fluid flow rate in a fluid transport line of a medical device, including at least a first pump, at least a chamber for collecting the fluid, at least a sensor for providing a first value correlated to the amount of fluid in the chamber, and a control device configured for receiving a second value representative of the fluid flow rate through the first pump and for correlating the second value with the first value to obtain an accuracy check of the second value. A method for controlling a fluid flow rate in a fluid transport line of a medical device including pumping a fluid, collecting the fluid in a chamber, sensing a first value correlated to the amount of fluid in the chamber, and detecting and sending a second value representative of the fluid flow rate through the first pump to a control device, sending the first value to the control device and correlating the second value with the first value to obtain an accuracy check.

Abstract: A system and method is employed to regulate a minimum transmission input speed based on automatic fluid temperature. The system includes a temperature sensor for sensing a temperature of the automatic transmission fluid and a controller for setting a minimum engine speed of the engine based on the temperature of the automatic transmission fluid. The size of a transmission pump may be reduced while the pump is still able to supply enough automatic transmission fluid to friction elements and gear ratios to provide lubrication and enable friction element actuators to engage and disengage the friction elements in a timely and effective manner. In a preferred form of the invention, when the temperature of the automatic transmission fluid is below 210° F., the minimum engine speed is set to no greater than 900 rpm; and when the temperature of the automatic transmission fluid is above 210° F., the minimum engine speed is set to no less than 1000 rpm.

Abstract: A method of operating a multiple-use, aquifer-based system includes pumping fluid out of an aquifer (or multiple aquifers) with a pump and selectively diverting the pumped fluid to a pumped-storage reservoir for subsequent return to the aquifer through a turbine to generate electricity hydroelectrically or to a fluid-utilizing system configured to utilize the pumped fluid in an application that is not related to the hydroelectric generation.

Abstract: The pumps and pressure controllers described herein aim to pump fluid in two directions, such as from a first port to a second port and vice versa. The pressure controllers aim to control pressure in a system or device, such as a test device, accurately and precisely at a variety of different pressure levels. Generally described, the pumps and pressure controllers described herein may include two or more control valves, which may be actuatable in such a manner so that the pump or pressure controller can switch between operating as a vacuum pump and operating as a compressor. In some embodiments, the pressure controllers may be able to adjust a pressure in the device by small increments thereby providing increased control of the pressure in the device over the prior art. Furthermore, the pressure controllers may be able to control the pressure of a system having low pressure levels.

Abstract: A hydraulic supply system for a hydraulically-operated automatic transmission includes a primary pump that is driven by an internal combustion engine of a vehicle. An electrically-driven auxiliary pump is provided to supply the system with hydraulic pressure when the primary pump is off or to supplement the primary pump when the primary pump does not deliver sufficient pressure. A discharge line from the auxiliary pump is connected to a control line of the hydraulic supply system and to the hydraulic system supply line under system pressure. Check valves are provided in the respective lines from the auxiliary pump. An additional check valve is provided in a line that extends from the control line to a torque sensing chamber of the automatic transmission.

Abstract: The fluidic system including a sheath pump that pumps sheath fluid from a sheath container into an interrogation zone, a waste pump that pumps waste fluid from the interrogation zone to a waste container, in which the flow rate of the sheath fluid is different from the flow rate of the waste fluid thereby drawing a sample fluid from a sample container into the interrogation zone, a detection system that provides a data set of input signals from the sample fluid, an analysis engine that recognizes aggregate particle events in the data set, and a controller that automatically adjusts the flow rate of the sample fluid into the interrogation zone based on the recognition of aggregate particle events, by controlling at least one of the flow rates of the sheath fluid and the waste fluid.

Abstract: Embodiments of the present invention incorporate a relatively slow acting valve to throttle the fuel flow through the compressor. Embodiments of the present invention seek to reduce the need for recirculating compressed fuel that is not needed by the turbomachine. This may increase the net power output and efficiency of a turbomachine-fuel gas compressor system.

Abstract: The fluidic system with an unclogging feature of the preferred embodiment includes a flow channel, a sheath pump to pump sheath fluid from a sheath container into an interrogation zone, and a waste pump to pump waste fluid from the interrogation zone into a waste container. The sheath pump and/or the waste pump draw sample fluid from a sample container into the interrogation zone. The fluidic system also includes a controller to adjust the flow rate of the sample fluid from the sample container into the interrogation zone. The pump and controller cooperate to propagate a pulsation through the flow channel from the pump if the flow channel is clogged. The fluidic system is preferably incorporated into a flow cytometer with a flow cell that includes the interrogation zone.

Abstract: A hydraulic control system is disclosed. The hydraulic control system may have a pump, a plurality of actuators, and a plurality of valve arrangements configured to meter pressurized. The hydraulic control system may also have at least one operator input device configured to generate signals indicative of desired velocities of the plurality of actuators, and a controller. The controller may be configured to receive a pump torque limit, determine a maximum pump flow capacity, and determine desired flow rates for each of the plurality of valve arrangements based on the signals. The controller may also be configured to make a first reduction of the desired flow rates based on the maximum pump flow capacity, to make a second reduction of the desired flow rates based on the pump torque limit, and to command the plurality of valve arrangements to meter the desired flow rates after the second reduction.

Abstract: A fluid passage closure system in a compressor includes a fluid passage, a seal cap unit and a flow space. The fluid passage formed in the housing of the compressor includes a large-diameter and the small-diameter passages, a step formed between the large-diameter and the small-diameter passages and a flat portion formed in the step. The large-diameter passage is formed on the opening side of the fluid passage and connected to the small-diameter passage. The seal cap unit closing the fluid passage includes a flat sealing surface and a press-contact surface. The flat sealing surface is in contact with the flat portion to close the fluid passage. The press-contact surface is formed to be pressed against the peripheral wall surface so that the seal cap unit is kept in the fluid passage. The flow space is formed between the press-contact surface and the peripheral wall surface.

Abstract: A valve assembly for a fluid system is provided. The valve assembly includes a damping component to reduce undesired pressure fluctuations within the system. The valve assembly includes a valve guide member and a valve member at least partially situated around the valve guide member. The valve member may be slidable relative to the valve guide member. The valve member is configured to move between a first valve member position that substantially permits fluid flow from the fluid system through the valve assembly, and a second valve member position that substantially prevents fluid flow from the fluid system through the valve assembly. A metering hole is formed on the valve member and adapted to dampen the motion of the valve member from the first valve member position to the second valve member position.

Abstract: The present invention relates generally to flow regulation in aircraft systems. More particularly, the present invention relates to a flow regulator 100 and a high-lift system 200 for an aircraft incorporating such a flow regulator 100. The flow regulator 100 comprises a fluid input port 102 for receiving a pressurised fluid, a fluid output port 104 for providing fluid having a regulated flow rate, and a regulator valve 106 connected in fluid communication between the fluid input port 102 and the fluid output port 104. The regulator valve 106 is operable to provide regulated fluid at a substantially constant output flow rate to the fluid output port 104. The flow regulator 100 also includes a flow switching mechanism 108 for switching the substantially constant output flow of the flow regulated fluid provided by the regulator valve 106 between a first flow rate and a second flow rate, the first flow rate being less than the second flow rate.

Abstract: The Water Distribution System is specifically applicable in cold climates in which water distribution systems may be subjected to freezing during the winter months. The Water Distribution System is applicable to domestic, industrial, recreational and institutional water distribution systems including water transmission and distribution mains and service connections. The Water Distribution System has applications in specific terrain and climatic conditions such as high bedrock, high groundwater table and permafrost. The Water Distribution System may, in specific terrain and climatic conditions, use uninsulated or insulated water mains and service connections, but without heat tracing or water bleeding in any case. The Water Distribution System is applicable to single and multiple complex distribution pipe systems arranged as parallel or looped, or combination of both arrangements.

Abstract: The present invention provides a vibration reducing device for pump cover body of water shut-off diaphragm pump comprising a hood cover mount and a pump cover body with a containing pit, which orderly accommodates a plastic elastic membrane disk, an obstructing baffle and a compressed spring therein. The plastic elastic membrane disk includes a downward central flow directing buffer, which can insert into a flow directing compartment in the containing pit when the hood cover mount docks with the pump cover body. The flow directing buffer can not only absorb the direct impacting momentum of pumped high pressurized water to the surrounding internal wall of the flow directing compartment but also redirect the random impacting direction of the high pressurized water. Thus, the vibration of the pump cover body with annoying noise created by the impacting momentum of the high pressurized water is deleted.

Abstract: Embodiments described herein provide micro-fluidic systems and devices for use in performing various diagnostic and analytical tests. According to one embodiment, the micro-fluidic device includes a sample chamber for receiving a sample, and a reaction chamber for performing a chemical reaction. A bubble jet pump is structured on the device to control delivery of a fluid from the sample chamber to the reaction chamber. The pump is fluidically coupled to one or more chambers of the device using a fluidic channel such as a capillary. A valve may be coupled to one or more chambers to control flow into and out of those chambers. Also, a sensor may be positioned in one or more of the chambers, such as the reactant chamber, for sensing a property of the fluid within the chamber as well as the presence of a chemical within the chamber.

Abstract: An oil supply system of an automatic transmission may remarkably reduce the total consuming power of oil pumps by discharging the entire oil on the basis of a low-pressure part and controlling only some of the oil, which is required by a high-pressure part, at high pressure, and then supplying the oil to high-pressure part. The oil supply system may considerably improve power transmission efficiency of the transmission, and may improve fuel efficiency and durability of the oil pumps and reduce noise and pressure vibration.

Abstract: A water collection, storage, and distribution system includes one or more individual water storage tanks. Each water storage tank has its own microprocessor that controls the operation of the storage tank so that each storage tank can operate either as a stand-alone storage tank or can be integrated into a series or a daisy chain of storage tanks. Each individual storage tank monitors its water level, its temperature, and its flow rate. When a risk of freezing exists, based on time and temperature, the storage tank can dump water. When the water in the storage tank is approaching stagnation, based on flow rate and time, the storage tank can dump water. When a storage tank is part of a daisy chain of storage tanks, each individual tank monitors not only its own water level but also the water level of the next downstream storage tank and pumps water to the downstream storage tank as required.

Abstract: Apparatus for introducing air (3) into a hydropneumatic reservoir (1) connected to pipework (2) comprising a sensor (6) of the pressure in the reservoir, a valve (9) controlled by a signal from the sensor and opening into the open air on one side, a tube (8) connected at one end to the valve and at the opposite end to the pipework (2), a first check valve (11) arranged in the tube to prevent liquid from travelling towards the open air, and a second check valve (5) arranged in the pipework between the reservoir (1) and the tube (8), the second check valve (5) being in the closed state when the pressure in the pipework (2) on the side nearest the tube (8) is less than the pressure in the reservoir (1).

Abstract: Methods, systems and controllers for detecting a surge event based on pattern of evolution of a discharge pressure of a compressor, and for relocating a surge margin relative to a surge parameter value recorded at the beginning of the surge event are provided. A controller has an interface configured to receive values of the discharge pressure from a compressor, and to output signals and alarms, a surge event detection unit connected to the interface and configured to detect a surge event in the compressor based on evolutions of the discharge pressure, a rate of the discharge pressure and a rate change of the rate, and a surge margin relocation unit connected to the surge event detection unit and the interface, and configured to relocate a surge margin relative to a surge parameter value recorded at a beginning of the surge event.

Abstract: A fluid dispenser comprising a housing in which fluid flow control components are located and a fluid conduit completing a fluid flow path between a fluid storage tank and a nozzle coupled to the housing. The fluid dispenser further comprises a control system, at least one controllable valve in and a fluid flow meter located along the fluid flow path. The fluid dispenser further comprises a fluid temperature conditioning subsystem located along the fluid flow path upstream of the flow meter. The control system is selectively operates the fluid temperature conditioning subsystem upon detection of a predetermined temperature. At least one controllable recirculation valve may also be provided, and the control system may selectively actuate the controllable recirculation valve such that the fluid flows back to the fluid storage tank. A method of measuring the flow rate of a fluid in the fluid dispenser is also disclosed.

Abstract: An automated system (10) and methods (11) for priming a fluid chamber (12) of a fluid dispensing valve (14) with fluid (16) from fluid material source that includes a vacuum source (46), a valve priming station (32), a vacuum switch (54), and a controller (62). The valve priming station (32) has a boot (40), a vacuum chamber (36), and a vacuum channel (42) in the boot (40). The vacuum channel (42) connects with the vacuum source (46) via the vacuum chamber (36). The boot (40) sealingly engages a valve nozzle (28) of the fluid dispensing valve (14) so that the vacuum chamber (36) connects the vacuum source (46) with the fluid chamber (12). The vacuum switch (54) couples with the vacuum channel (42) via the vacuum chamber (36) and has an opened and closed position based upon a vacuum level in the vacuum chamber (36).

Abstract: A hydraulic circuit for supplying hydraulic pressure to frictional engagement elements in an automatic transmission including an oil passage connecting an output port through which a drive pressure is output, and a second signal pressure port, of a second clutch application relay valve, and an oil passage connecting an output port through which a modulator pressure is output and the second signal pressure port, are formed in a valve body and arranged such that it is possible to open the oil passage, as well as close the oil passage, with an oil passage closing member. With the hydraulic circuit it is possible to change a formed speed in response to a shift operation when a shift, after being operated from a travel position to a non-travel position, is returned again from the non-travel position, at a time of failure.

Abstract: A flow-ducting system with a combined pump-drive module, the pump-drive module including a drive module, and a pump module having an impeller that can be driven by the drive module, the unit including a casing having at least one inlet side and at least one outlet side and a s moveable shut-off device arranged between them, a flow path between the inlet side and the outlet side being formed in at least one position of the shut-off device, and the pump module being arranged in the flow path between the inlet side and the outlet side. In at least one further position of the shut-off device (10, 10?), the unit (1) is capable of shutting off the flow path (9) in such a way that the shut-off device (10, 10?) and the unit casing (2) form an area (20), which is separated from the flow path (9) and which is sealed off from the inlet side (5) and the outlet side (6), and the pump-drive module (11, 11?) is arranged at least partially inside this area (20).

Abstract: A hydraulic control circuit of a vehicular power transmission apparatus includes: a first passageway providing communication between a pump and a strainer; a second passageway providing communication between the pump and a feeding passageway; a third passageway interconnecting the first passageway and the second passageway; a first check valve being disposed between the strainer and a connecting point between the first passageway and the third passageway, and allowing the oil to flow from a strainer side to a pump side; a second check valve being disposed between the feeding passageway and a connecting point between the second passageway and the third passageway, and allowing the oil to flow from the second passageway to a feeding passageway side; and a third check valve being disposed in the third passageway, and allowing the oil to flow from the first passageway to a second passageway side.

Abstract: A fuel supply system for a gas turbine engine has a first pump for delivering fuel to a first use on a gas turbine engine, and a second pump for delivering fuel to a second use on the gas turbine engine. A valve allows flow from the first pump to be delivered to the first use, but also routes some flow from the first pump to supplement fuel flow from the second pump until a pressure downstream of the second pump increases. The valve then allows flow from the second pump to flow to the first use to supplement the flow from the first pump.

Abstract: An electric motor drives a variable capacity backup hydraulic pump that can supply pressure oil to an actuator when a loss or reduction occurs in the function of an aircraft central hydraulic power source. A power source unit rectifies electric power supplied from a variable frequency supply. A driver supplies the electric power from the power source unit, and drives the electric motor so as to rotate the pump at a predetermined constant rotational speed. The constant rotational speed is set, based on the change in the efficiency of each of the pump, the electric motor, and the driver with respect to the rotational speed of the pump, such that the overall efficiency, obtained as a product of these efficiencies, has a maximum value.

Abstract: A method of determining a leak in a pumping system includes determining a metered flow rate of a fluid through a first channel, determining a measured flow rate within the channel, and identifying an amount of a leak in the pumping system as the difference between the metered flow rate and the measured flow rate.

Abstract: A vehicle drive system, including a motor generator; a gear group having a plurality of gears; and a motor cooling circuit for cooling the motor generator. The system further includes a lubricating circuit for lubricating the gear group; a cooler circuit in which an oil cooler is provided; and an oil pump that supplies oil to each circuit. The motor cooling circuit is arranged in series with and downstream of the cooler circuit, and the lubricating circuit is arranged parallel to the cooler circuit with respect to the oil pump.

Abstract: Devices and methods for inhibiting movement of automatic pool cleaners (APCs) are described. Versions of the devices may cause pool water to bypass flowing through bodies of APCs. Alternatively, they may cause water flowing though bodies of APCs to bypass the associated motive force creators. The devices thus may constitute idler mechanisms, as they effectively prevent movement without requiring operation of the ultimate driver (i.e. the pump) to cease.

Abstract: Processes for extracting nucleic acid from a biological sample and related assemblies and kits are disclosed. The processes comprise the steps of (a) providing a device comprising an inner surface, an outer surface, a first port, and a second port, wherein the inner surface is composed of unmodified, smooth glass and defines a tubular lumen providing fluid communication between the first port and second port, wherein the lumen is circular, oval, or elliptical in cross-section, and wherein the lumen is essentially free of nucleic acid-specific binding sites; (b) introducing a nucleic acid-containing sample into the lumen of the device via the first port; (c) allowing nucleic acid in the sample to bind to the unmodified smooth glass surface; and (d) washing the bound nucleic acid.