Abstract: A method is provided for measuring exhaust gas recirculation (EGR) flow in. an engine system wherein turbo speed of a turbocharger, inlet pressure upstream of a compressor, boost pressure upstream of an engine, and engine intake temperature upstream of the engine are measured. Air mass flow into the engine system is calculated as a function of the turbo speed, inlet pressure, and boost pressure, exhaust mass flow is calculated as a function of the boost pressure, the engine intake temperature, volumetric efficiency of the engine, and engine size, and EGR flow is determined, by subtracting air mass flow from exhaust mass flow. A method for controlling emissions from an engine system, and an. engine system are also provided.

Abstract: When atmospheric pressure (Pa) which varies according to altitude is higher than a predetermined pressure threshold (Path) during idle operation in which catalyst warm-up request is issued, an intake pressure is controlled, through a throttle valve (19), to an intake pressure at which an intake air amount required to promote the warm-up of a catalyst converter (26) is obtained. When the atmospheric pressure (Pa) is lower than the predetermined pressure threshold (Path), the intake pressure is controlled, through a throttle valve (19), to an intake pressure (Pa?Pb) at which a differential pressure (Pb) required by a brake booster (8) is obtained. Accordingly, negative pressure in the brake booster (8) can be secured while promoting the warm-up of the catalyst during the idle operation.

Abstract: A method is proposed for regulating a fill level of an exhaust component storage of a catalyst (26) of an internal combustion engine (10), wherein the regulating of the fill level is done by using a system model (100), comprising a catalyst model (102), and wherein uncertainties of measured or model variables influencing the regulating of the fill level are corrected by an adaptation, which is based on signals of an exhaust gas probe (34) arranged at the outlet side of the catalyst (26). The method is characterized in that the adaptation takes multiple pathways (200, 210, 220), wherein signals from different signal regions (260, 280, 300) of the exhaust gas probe (34) situated at the outlet side are processed on different pathways. An independent claim is addressed to a controller designed to carry out the method.

Abstract: An exhaust purification system of an internal combustion engine includes a catalyst arranged in an exhaust passage of the internal combustion engine and able to store oxygen, a storage amount calculating part configured to calculate an oxygen storage amount of the catalyst, a poisoning amount calculating part configured to calculate a poisoning amount of the catalyst, and an oxygen amount control part configured to control an amount of oxygen supplied to the catalyst based on the oxygen storage amount and the poisoning amount.

Abstract: A method of detecting knocking includes: an in-cylinder pressure obtaining step of obtaining an in-cylinder pressure of a cylinder of the internal combustion engine at a plurality of crank angles; a heat generation rate calculation step of calculating a heat generation rate of the cylinder at each of the plurality of crank angles; an in-cylinder pressure maximizing crank angle obtaining step of obtaining an in-cylinder pressure maximizing crank angle at which the in-cylinder pressure of the cylinder of the internal combustion engine is at a maximum value; a knock determination crank angle region decision step of deciding a knock determination crank angle region which is a region between a smaller crank angle smaller than the in-cylinder pressure maximizing crank angle by a first value and a larger crank angle larger than the in-cylinder pressure maximizing crank angle by a second value; a heat generation rate differentiation step of calculating a differential value of the heat generation rate in the knock det

Abstract: Method of controlling the temperature of fuel injected into a combustion engine to enable a reduction in the amount of fuel injected into engines which may be powered both by pure gasoline and by ethanol or by any biofuel mixture.

Abstract: A direct fuel injection engine including an ignition plug and a fuel injection valve arranged to be capable of injecting a fuel directly in a cylinder is controlled. The engine has a predetermined operation region in which an excess air ratio of an air-fuel mixture is set in a vicinity of 2. In a first region on a low load side of the predetermined operation region, a homogenous air-fuel mixture having the excess air ratio at a first predetermined value in the vicinity of 2 is formed upon combustion, and in a second region on a load side higher than the first region, a stratified air-fuel mixture having the excess air ratio at a second predetermined value in the vicinity of 2 is formed upon combustion.

Abstract: Disclosed are a piston and a method for a ring groove support structure thereof. The piston includes a piston head and a piston skirt connected with the piston head; a cooling oil cavity is arranged in the piston head; a position of the bottom of the cooling oil cavity close to the piston skirt is an open end and the open end is sealed through a supporting member; a cooling oil inlet and an oil drain port are arranged on the supporting member; the cooling oil inlet is in communication with the cooling oil cavity and an oil inlet channel of the cooling oil arranged in the piston skirt; the oil drain port is in communication with the cooling oil cavity and the oil drain channel arranged in the piston skirt; and the open end and the supporting member are welded.

Abstract: The present invention provides a piston of an internal combustion engine capable of reducing a deformation amount of a piston head. A piston of an internal combustion engine includes a piston head, a pair of piston pin boss portions, a pair of skirt portions, and four apron portions connecting each of the pair of piston pin boss portions and each of the pair of skirt portions. Each of the four apron portions includes a bent portion, a boss portion-side portion positioned on one side where the pair of piston pin boss portions is located with respect to the bent portion, and a skirt portion-side portion positioned on an opposite side from the pair of piston pin boss portions with respect to the bent portion. A distance between an axis perpendicular to both an axis of a cylinder of the internal combustion engine and an axis of a piston hole and the boss portion-side portion is increasing according to an increase in a distance from the axis of the piston pin hole.

Abstract: A gaseous fuel feeding system having a fuel supply line enclosed by a barrier wall system such that the fuel supply line includes a primary flow channel for the fuel and a secondary flow channel around the primary flow channel inside the barrier wall system, and a valve having a first fluid passage and a second fluid passage arranged to extend through the valve. The valve is coupled between the first and the second fuel supply line sections, such that the primary flow channel in the first fuel supply line section is in controllable flow connection with the primary flow channel in the second fuel supply line section via the first fluid passage of the valve. The secondary flow channel is in continuous flow connection with the secondary flow channel in the second fuel supply line section via the second fluid passage of the valve.

Abstract: In a hybrid vehicle, a power control unit configured to control an engine and a motor, and a vaporized gas control valve are disposed in an engine compartment located in a front portion of the vehicle. The vaporized gas control valve is disposed on a purge pipe that introduces fuel-vaporized gas generated in a fuel tank into the engine, to adjust flow of the fuel-vaporized gas. The power control unit is stored within a casing, and the vaporized gas control valve is disposed on a top portion of a side wall of the casing.

Abstract: A fluid connector, including a tubular member, a connector body, including an exterior opening groove, and a retainer clip to lock the tubular member to the connector body, an assurance cap including one or more latch fingers engaged with the exterior opening groove, and a tool, including an annular collar mountable over the tubular member, and a plurality of fingers carried on and extending axially from the annular collar, the plurality of fingers operatively arranged to engage the latch fingers when the collar and the plurality of fingers are engaged with the assurance cap to disengage the latch fingers from the exterior opening groove to disconnect the assurance cap from the connector body.

Abstract: Method of preheating and controlling the temperature of fuel injected into a combustion engine to enable a reduction in the amount of fuel injected into engines which may be powered both by pure gasoline and by ethanol or any biofuel mixture, where the engine is located in environments with low temperatures and extremely cold temperatures.

Abstract: A body of a high pressure fuel pump is provided with a pumping bore extending along a pumping axis, a cylindrical inlet chamber extending in continuation to the pumping bore, and a fuel inlet channel extending along a second axis making an angle with the pumping axis from an inner opening in the inlet chamber to an outer opening. A debris trap is dug in the outer face.

Abstract: A pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine, the pump unit comprising: a head (2) inside which a cylinder (3) is formed along an axis (A) for housing a sliding pumping piston (4); an intake valve (8) positioned inside an intake hole (7) between an intake chamber (9) and a compression chamber (10) upstream and downstream of the intake hole, respectively; a plug (11) sealingly connected to the head (2) so as to close the intake chamber; wherein the sealed connection is formed by means of forced surface-to-surface engagement between a portion of an inner surface of an annular wall of the head and a portion of an outer surface of an annular wall of the plug.

Abstract: An apparatus and a method for testing a fuel injector nozzle with a tip having at least one fuel outlet are provided. The apparatus comprises a test chamber, a holder for holding the fuel injector nozzle such that the outlet is within the test chamber, a fuel supply arrangement for supplying fuel to the fuel injector nozzle, a sensor having a sensor surface for sensing an atomized fuel spray supplied by the fuel injector nozzle through the fuel outlet and movement module for moving the sensor. The movement module is configured to position the sensor surface of the sensor at a plurality of positions corresponding to a surface of a sphere having a radius R and a center point C adjustable to match a center point ct of the tip of the fuel injector nozzle or a center point cf of an orifice of the fuel outlet.

Abstract: An override module allowing a vehicle operator to default the status of an automated start-stop system to “off”. A first embodiment uses a module that is installed in-line with a manual override button. A second embodiment uses a module that is installed on the vehicle's CAN bus.

Abstract: A hybrid drive device includes an internal combustion engine, an electric machine and an impulse start module which comprises two clutches and a flywheel mass. A method for operating the hybrid device includes opening the first clutch of the impulse-start module and establishing a start-up requirement for the internal-combustion engine. The method also includes closing the first clutch with the second clutch in an open or closed position for a start of the internal-combustion engine.

Abstract: A compressed self-ignition type internal combustion engine includes a fuel injection nozzle provided such that a plurality of injection holes are exposed from a cylinder head of the internal combustion engine to a combustion chamber, and a plurality of hollow ducts configured such that an inlet and an outlet are exposed to the combustion chamber. The plurality of ducts are configured such that each fuel spray injected from the plurality of injection holes of the fuel injection nozzle passes from the inlet to the outlet. The internal combustion engine includes a heating device for heating at least one of the plurality of ducts.

Abstract: A power harvesting device comprising at least one rotor mounted rotatably on a corresponding fixture on a base structure is disclosed. The device is at least partially submerged in a moving fluid and arranged to convert tangential components of fluid dynamic forces of the moving fluid into a first torque component onto the rotor through rotor vanes. In addition, rotor blades are arranged on or between the first rotor vanes to deflect axially moving fluid into a tangential direction to create a second torque component onto the rotor in the same direction as said first torque component. A system comprising a plurality of power harvesting devices with common power transfer means is also disclosed.

Abstract: A wind power generator includes an air exhaust unit, a generating unit, a rectifier, and a storage battery. The air exhaust unit includes a fan, a wind guide disk, and a base. The fan is provided with a bearing which is connected with a primary gear. A driven gear is connected with a transmission bearing and meshes with the primary gear. The generating unit includes a stator including a plurality of magnetic poles, and a rotor surrounding the stator and provided with a plurality of magnets. The rotor is connected with the transmission bearing. After the fan is rotated, the bearing drives the primary gear which drives the driven gear which drives the transmission bearing which drives and rotates the rotor.

Abstract: A rotor blade for a wind turbine, to a wind turbine comprising a tower, a nacelle and a rotor, and also to a wind farm. The rotor blade comprises an inner blade section that extends from a rotor blade root in the longitudinal direction of the rotor blade and a trailing edge segment, arranged on the inner blade section, for increasing the profile depth of the rotor blade along a section in the longitudinal direction of the rotor blade. The rotor blade has a pressure-side surface and a suction-side surface, which are each formed in certain regions by parts of the inner blade section and of the trailing edge segment. One or more air outlets and air inlets extending substantially in the longitudinal direction of the rotor blade are formed on both the pressure-side surface and the suction-side surface of the rotor blade, in the region of the trailing edge segment, said air outlets and air inlets being interconnected in a fluid-guiding manner.

Abstract: This invention relates to a wind turbine blade component, a method of manufacturing such a wind turbine blade component and a wind turbine blade comprising the wind turbine blade component. The wind turbine blade component comprising a stack of layers arranged in a first group and in a second group, wherein the layers of each group has the same width. The layers of each group is continuously offset in an edge-wise direction to form a tapered edge profile. The first group of layers may be arranged relative to the second group, or in an alternating order. The layers of the first group may further have a first length which is greater than a second length of the layers of the second group.

Abstract: To provide a wind power generation device in which wind received at the convex-side surface of concave panel parts is guided into a front edge airflow reservoir, thereby making it possible to improve the reliability of starting at startup and to increase the amount of power generated. Wind-receiving paddles 5 have: concave panel parts 51, which have a vertically elongated shape and which curve or bend in a concave shape on an inner-side surface 516 or an outer-side surface 515 in plan view; and front edge airflow reservoirs 52 formed in a projecting manner on a concave-side-surface 511 side along the longitudinal direction of front edge parts 513 of the concave panel parts 51 with respect to the direction of rotation, the tip section of the front edge airflow reservoirs 52 curving or bending towards the rear-edge side.

Abstract: An example method includes: determining wave data corresponding to a floating ground station of an airborne wind turbine, wherein an aerial vehicle is coupled to the floating ground station via a tether; determining, based on the wave data, an oscillation profile of the floating ground station; and operating the aerial vehicle to fly in a closed path with: (a) a looping period that matches the period of wave-influenced oscillation of the floating ground station, and (b) a looping phase that aligns with the oscillation phase of the floating ground station such that movement of the aerial vehicle on a downstroke portion of the closed path corresponds to forward displacement of the floating ground station, and movement of the aerial vehicle on an upstroke portion the closed path corresponds to reverse displacement of the floating ground station.

Abstract: An example method includes: determining a period of natural oscillation of a floating ground station in an airborne wind turbine with an aerial vehicle coupled to the ground station via a tether, and wherein each natural-oscillation period comprises forward and backward displacement of the floating ground station with respect to the aerial vehicle; and operating the aerial vehicle to fly in a substantially circular path with a looping period that matches the natural-oscillation period of the floating ground station, and a looping phase that aligns with the oscillation phase of the floating ground station such that movement of the aerial vehicle on a downstroke portion the circular path corresponds to forward displacement of the floating ground station, and movement of the aerial vehicle on an upstroke portion the circular path corresponds to reverse displacement of the floating ground station.

Abstract: A method is provided for braking a rotor of a wind turbine. The rotor comprises rotor blades. The wind turbine comprises a pitch adjustment system for adjusting a pitch of the rotor blades. The method comprises detecting a system failure of the pitch adjustment system, estimating a current wind speed, estimating an available brake torque and estimating a required brake torque, based on the estimated current wind speed. The method further comprises determining a suitable point in time for activating a rotor brake based on the estimated available brake torque and the estimated required brake torque. The rotor brake is then activated at the determined suitable point in time.

Abstract: A method of operating a wind turbine having a rotor. Sensor data is received from one or more sensors of the wind turbine and maximum load values are obtained on the basis of the sensor data. The maximum load values are indicative of maximum loads acting on a component of the wind turbine such as a rotor blade. An estimated extreme load value, such as a 50-year return load, is obtained on the basis of the maximum load values and compared with a reference value. A maximum thrust limit is set on the basis of the comparison, and the wind turbine is operated in accordance with the maximum thrust limit so that a wind thrust force acting on the rotor does not exceed the maximum thrust limit.

Abstract: A deep sea energy integration system based on a floating wind turbine and a current energy device, being of a power generation structure having wind turbines with a Spar platform as a foundation and integrating vertical axis current energy device, and having a Spar-type floating wind power generation system and a current energy power generation system. The Spar-type floating wind power generation system is simple in structure and high in stability, is suitable for middle and far sea areas. By combining an offshore wind turbine with the current energy power generation device to share the Spar platform, an mooring line, a voltage transformation device, and a power transmission device, the power generation performance of the system is improved. An outer support of the current energy power generation system is a cylindrical shape, thereby reducing wave loads, utilizing the current energy to the maximum extent.

Abstract: Embodiments of the present foundation for wind turbine generators comprise four structural members: one short central hollow pier, one continued grade beam, several solid piles built below the continued grade beam, and several arm grade beams linking the structural members. All structural members are constructed of cast-in-place concrete reinforced with rebars, and all connections are fixed and rigid. The short central hollow pier positions in the center of the system, functions as a hub to take the loadings and continuously to transfer and distribute the loadings further to the continued grade beam, arranged circumferentially in outer periphery of the system, and deeper to the solid piles, through the arm grade beams, which have a varied section and embed into ground in the far end. The present foundation utilizes the ground to shape and form the structural members, no formworks, backfilling and compaction is needed.

Abstract: A wind data detecting system for a wind turbine, the wind turbine including a nacelle and a rotor comprising a plurality of rotor blades separated by a predetermined angle within a rotor plane is provided. The system includes (a) a first wind sensor for providing first wind data (b) a second wind sensor for providing second wind data, (c) a support structure adapted to be mounted on the nacelle of the wind turbine and to support the first wind sensor and the second wind sensor at respective first and second positions, and (d) a processing unit for generating output wind data based on the first wind data and the second wind data wherein the processing unit is adapted to generate first filtered wind data and second filtered wind data by applying an adaptive filtering algorithm to the first wind data and the second wind data.

Abstract: Yarn energy harvesters containing conducing nanomaterials (such as carbon nanotube (CNT) yarn harvesters) that electrochemically convert tensile or torsional mechanical energy into electrical energy. Stretched coiled yarns can generate 250 W/kg of peak electrical power when cycled up to 24 Hz, and can generate up to 41.2 J/kg of electrical energy per mechanical cycle. Unlike for other harvesters, torsional rotation produces both tensile and torsional energy harvesting and no bias voltage is required, even when electrochemically operating in salt water. Since homochiral and heterochiral coiled harvester yarns provide oppositely directed potential changes when stretched, both contribute to output power in a dual-electrode yarn.

Abstract: A power generating system based solely on gravity includes a housing with water in a main chamber. A convertible piston interacts with the water to move to displace the water in a cycle. The displaced water is directed into and through power generating units, with the outputted water from one power generating unit continued towards and through a subsequent power generating unit as the water moves back towards the main chamber of the housing. The water is then able to interact again with the convertible piston to again be displaced through the power generation cycle. At least two separate power generating systems are integrated for uninterrupted power supply for 24 hrs per day, 7 day per week and 365 days per year. This cycle continues (not in the concept of perpetual motion), as needed, to create energy that can be used on-demand or otherwise stored for future use.

Abstract: Energy harvesters (EH) which can effectively harvest wasted vibrational/kinematic energy and convert it into electrical energy for battery-free sensor operation are described herein. The energy harvesters can be integrated with a power management circuit and a wireless sensor for monitoring wind turbine blades. The target application of the energy harvesters includes powering the wireless sensors used for wind turbine blade structural monitoring.

Abstract: A pump device includes a rotary motor, a compartment for insertion of a disposable pump part, and one or more pulsation-reduction elements. The disposable pump part includes an input port, an output port, and a dual-action reciprocating assembly. The input port is configured for intaking fluid. The output port is configured for outputting the fluid. The dual-action reciprocating assembly is configured for pumping the fluid. The assembly includes a single piston and a rod configured to be coupled to the rotary motor, so as to drive the piston. The one or more pulsation-reduction elements are configured to reduce a pulsation in the outputted fluid, caused by the single-piston dual-action reciprocating assembly.

Abstract: A method for determining a dispensing apparatus for a heat-dissipating material and according to one aspect of the present invention is provided. The method for determining a dispensing apparatus for a heat-dissipating material includes detecting an internal material of a dispensing apparatus from a heat-dissipating material discharged from the dispensing apparatus; and determining suitability of the dispensing apparatus based on the detected amount of the internal material.

Abstract: A plurality of guide shafts which are disposed parallel to an input/output shaft (a first input/output shaft, a second input/output shaft) are assembled in a case body which holds a cylinder in which first and second piston sets, move reciprocally. A first guide bearing, which abuts both side surfaces of a first piston body and receives only lateral pressure generated by the reciprocal movement, and a second guide bearing, which abuts both side surfaces of a second piston body and receives only lateral pressure generated by the reciprocal movement, are assembled coaxially and separated in an axial direction on each guide shaft.

Abstract: A connection structure for a motor of an air compressor contains: a base, a cylinder, a motor, and a transmission mechanism. The base includes a first positioning orifice and a second positioning orifice. The cylinder includes an air storage seat. A small-diameter gear is inserted through the first positioning orifice to fit on the motor, a bearing housing is accommodated in the first positioning orifice, and the motor includes a magnetic coil. The transmission mechanism actuates a piston to move in the cylinder reciprocately so as to compress air. The magnetic coil includes a first segment and a second segment, and the base includes two symmetrical elongated plates which respectively have two hooks. The base further includes two symmetrical arcuate retainers.

Abstract: The invention provides a sound generator having a frame, a vibration system and a magnetic circuit system carried by the frame. The vibration system includes a diaphragm, a coil and an elastic support assembly. The diaphragm includes a first suspension ring fixed with the frame, a first dome at a center of the first suspension ring, and a second dome stacked on the first dome. The first dome includes a main body, a first wall, and a second wall extending perpendicularly from the first wall for connecting to the coil via the first wall. The first wall is connected to a side surface of the coil. The first wall and the second wall are used for elastically suspending the coil below the diaphragm. Thus, the sound generator has improved high frequency performance.

Abstract: A compressor includes a terminal cover. The terminal cover includes a first terminal protector protecting a first glass-sealed terminal assembly, a first power line guide guiding first power lines connected to the first glass-sealed terminal assembly, a first power line outlet through which the first power lines extend outward, a second terminal protector protecting a second glass-sealed terminal assembly, a second power line guide guiding second power lines connected to the second glass-sealed terminal assembly, and a second power line outlet through which the second power lines extend outward. The first power line guide guides the first power lines in a guiding direction away from the second terminal protector. The second power line guide guides the second power lines such that the second power lines bypass the first terminal protector and are directed in a direction identical to the guiding direction.

Abstract: The invention relates to a pneumatic motor (1) for a feed pump, comprising —a motor cylinder (10) and a motor piston (11) which is moveably arranged in the motor cylinder (10) and to which compressed air is applied, —a valve unit (30), the compressed air providing for a downward movement (17) of the motor piston (11) when the valve unit (30) is in a first valve position and for an upward movement (19) of the motor piston (11) in the motor cylinder (10) when the valve unit is in a second valve position, —upper stop means for the valve unit (30), by means of which the valve unit (30) is switched from the second valve position to the first valve position and thus the upward movement (19) is changed to the downward movement (17), and —lower stop means for the valve unit (30), by means of which the valve unit (30) is switched from the first valve position to the second valve position and thus the downward movement (17) is changed to the upward movement (19).

Abstract: Pump heads for peristaltic pump assemblies are provided. For example, a pump head for a peristaltic pump comprises an occlusion bed, a rotor guide, a rotor assembly positioned between the occlusion bed and the rotor guide, and a pathway for tubing. The pathway comprises an inlet portion, an outlet portion, and a connecting portion that connects the inlet and outlet portions. The inlet portion is defined between the occlusion bed and the rotor guide, the outlet portion is defined between the occlusion bed and the rotor guide, and the connecting portion is defined between the occlusion bed and the rotor assembly. Further, the occlusion bed is movable with respect to the rotor guide and the rotor assembly. In exemplary embodiments, the pump head urges fluid flow through the tubing to supply a cooling fluid to a medical probe assembly for delivering energy to a patient's body.

Abstract: Provided are an elastomeric-hose-compressing part, a cartridge, and a roller assembly for a pump head of a peristaltic pump, and a pump head for a peristaltic pump. The elastomeric-hose-compressing part includes a surface for compressing the elastomeric hose which has an arcuate shape along its length direction, wherein the surface for compressing the elastomeric hose is provided with flanges oppositely arranged on two side portions of the elastomeric-hose-compressing part in the width direction, the width direction of the elastomeric-hose-compressing part is perpendicular to the length direction, and the surface for compressing the elastomeric hose is formed by a continuous surface or by a plurality of surfaces sequentially arranged along the length direction.

Abstract: A pump system for producing fluids from a reservoir using a wellbore having a vertical section with a casing defining an annulus, a transitional section and a horizontal section, and a production tubing having a vertical section and a horizontal section, wherein the system includes a completion with an isolation device in the annulus near the bottom of the vertical section, a gas/liquid separator for receiving produced fluids from the horizontal section, and a vertical lift pump; a continuous flow path from the terminus of the production tubing to the vertical section; a plurality of horizontal pumps in the horizontal section, each having an intake exposed to the reservoir and an outlet in the continuous flow path. The horizontal length of the production tubing is closed to the reservoir except through the horizontal pumps.

Abstract: A disposable dual-action reciprocating pump part includes a piston and a cylinder, and multiple silicone O-rings. The piston is configured to move bi-directionally inside the cylinder. The multiple silicone O-rings are configured to seal the piston against the cylinder.

Abstract: A pump system may include a plurality of motors coupled to a shaft and configured to cause the shaft to rotate, and a power end coupled to the shaft. The power end may include a plurality of yoke frames, each of which may include one or more push rods. The pump system may further include multiple fluid ends coupled to the power end. Each fluid end may include a cylinder chamber including a piston-plunger assembly configured to couple to one of the one or more push rods of the power end. The pump system may also include a device to disconnect or isolate one or more of individual piston assemblies, or one or more of the multiple fluid ends. The pump system may also include a multiplicity of controllers which may enhance performance, reliability, and operating life in a number of modes and conditions in a health management method.

Abstract: A pump assembly that has a first pump and a second pump for pumping lubricant, both pumps being integrated into a single housing. A drive shaft is provided that drives both pumps. Both the first pump and the second pump have a gear or rotor that is rotated by the drive shaft. Each of the pumps have an inlet provided on the housing to receive input from a source outside the housing and an outlet. The housing has a wall that is common to both pumps. The first pump is provided on a first side of the wall and the second pump is provided on the second, opposite side. The gears or rotors of the pumps may be provided in pockets provided on the first and second sides of the wall. The drive shaft extends through the wall and connects to each of the drive gears or rotors.

Abstract: Disclosed is a vane pump including a housing, a pivot pin having a hollow portion mounted within the housing, a control slide displaceable about the pivot pin within the housing between a first slide position and a second slide position to adjust displacement of the pump through an outlet, and a cover attached to the housing via a fastener passing through the pivot pin such that the control slide rotates about the pivot pin with respect to the housing and the cover. In an example, the fastener passes through to the engine mount. The pivot pin does not create a fluid path through the hollow portion.

Abstract: An electric oil pump includes a motor including a shaft, a pump driven via the shaft, and an inverter on a rear side of the motor and fixed to the motor. The motor includes a rotor, a stator, and a motor housing. The pump includes a pump rotor and a pump housing. The motor housing includes a bottomed tubular shape including a bottom portion on the inverter side, and the inverter portion includes an inverter housing that accommodates a circuit board. The inverter includes a metal base plate on a front side of the inverter housing and extends in the radial direction with respect to the central axis. The base plate is fixed to the bottom portion of the motor housing.

Abstract: A compressor may include a non-orbiting scroll, an orbiting scroll, a bearing housing and first and second discrete keys. The non-orbiting scroll may include a first end plate having a first spiral wrap extending therefrom. The orbiting scroll may include a second end plate having a second spiral wrap extending therefrom and meshingly engaged with the first spiral wrap of the non-orbiting scroll. The bearing housing may support the orbiting scroll. Each of the first and second keys may be slidably engaged in first slots formed in the second end plate of the orbiting scroll and slidably engaged in second slots formed in the first end plate of the non-orbiting scroll or third slots formed in the bearing housing.