Abstract: A fuel injector includes a nozzle having at least one nozzle outlet. A valve needle is moveable with respect to a valve needle seating through a range of movement between a closed position and an open position to control fuel delivery through the at least one nozzle outlet. The movement of the nozzle needle is controlled by fuel pressure within a control chamber. The injector has first and second nozzle control valves for controlling fuel flow into and out of the control chamber to pressurise and depressurise the control chamber, respectively. The first nozzle control valve can operate selectively to place the control chamber in fluid communication with a fuel drain or to place the control chamber in fluid communication with a high pressure supply line. The second nozzle control valve can operate selectively to place the control chamber in fluid communication with a fuel drain.

Abstract: A microfluidic device for performing physical, chemical or biological treatment to at least one packet without contamination.

Abstract: A variable valve train module has a valve control block positioned on a cylinder head of the engine. The valve control block has a first block and a second block and variable valve train components. These components include at least one valve, a rocker arm, a brake, and a pump configured to receive input from a camshaft. The components are positioned with respect to the blocks such that the first block receives a first portion of the pump and the second block receives a second portion of the pump.

Abstract: An engine, fuel injector, and method are disclosed. The method may include aligning an exhaust gas passage with an exhaust gas source to allow exhaust gas to enter a pre-chamber for a first duration; aligning a fuel passage with a fuel source to allow fuel to enter the pre-chamber for a second duration; and aligning injector nozzle connectors with injector nozzles, for a third duration, to allow a mixture of the fuel and the exhaust gas to be injected from the pre-chamber to the combustion chamber.

Abstract: A piezo injector includes an actuator space in which a piezo actuator is arranged, a control piston bore in which a control piston with an end face is arranged, a leakage pin arranged between the piezo actuator and the end face to couple the piezo actuator with the control piston, and a union for fluidic communication with the control piston bore which union has a hydraulic throttle.

Abstract: A fuel injector includes a valve stack forming a seal cavity, and an outlet check extending through the seal cavity. A check seal is positioned within the seal cavity and seals about the outlet check. The valve stack also includes a back-up plate trapping the check seal within the seal cavity, such that a crevice is formed within the seal cavity between the check seal and the back-up plate. The back-up plate has a vent formed therein that fluidly connects the crevice to a drain.

Abstract: Methods and systems for supplying fuel to a diesel engine during a cycle of a cylinder are described. In one example, a cylinder is supplied fuel via two fuel injectors having different fuel flow rates. The two fuel injectors may be arranged opposed to each other or in a way that fuel spray from one injector intersects and collides with fuel spray from the other injector.

Abstract: A fuel injector for use in delivering fuel to an internal combustion engine includes a nozzle having a valve needle which is moveable with respect to a valve needle seating through a range of movement between a fully-closed position and a fully-open position to control fuel delivery through at least one nozzle outlet, whereby movement of the nozzle needle is controlled by fuel pressure within a control chamber. A nozzle control valve controls fuel flow into and out of the control chamber to pressurize and depressurize the control chamber, respectively. The fuel injector also includes a variable flow passage in communication with the control chamber through which fuel flows out of the control chamber at a variable rate throughout the range of movement of the valve needle so that movement of the valve needle is damped to a greater extent as it approaches the fully-open position.

Abstract: A piezo injector includes a piezo actuator arranged in an actuator chamber and a valve plunger arranged in a valve plunger bore and having a first end face facing the piezo actuator. The valve plunger is arranged between a first control chamber defined by a valve plunger bore portion delimited by the first end face and a spring chamber formed by a valve plunger bore portion opposite the first control chamber. A second control chamber is delimited by a second face of a nozzle needle and a sleeve guided by the nozzle needle. A leakage pin is arranged in a leakage pin bore between the piezo actuator and the first end face of the valve plunger. The leakage pin bore is formed in an intermediate plate arranged on a side of a control plate facing the piezo actuator, the valve plunger bore being formed in said control plate.

Abstract: A container treatment plant and a method for displacing an element of a valve or a diverting unit of a container treatment plant. The container treatment plant comprises at least one element for treating containers. The element is part of a valve or a diverting unit. The container treatment plant also comprises a displacing unit for displacing the element between a first position and a second position, wherein the displacing unit comprises a magnetically operating actuator such that a rotary motion caused by the actuator displaces the element with the aid of a mechanism between its first and second positions.

Abstract: The present invention relates to a fuel injector for use in delivering fuel to an internal combustion engine. The fuel injector includes a nozzle having a valve needle which is movable with respect to a valve needle seat. The valve needle travels through a range of movement between a closed position and an open position to control fuel delivery through at least one nozzle outlet. The valve needle cooperates with a needle sleeve or a control member which is located in a piston guide. The valve needle is movable relative to the needle sleeve or the control member. The needle sleeve or the control member is movable relative to the piston guide. The invention also relates to a method of operating a fuel injector; and a fuel injector control unit.

Abstract: The present invention relates to a control valve for a fuel injector. The control valve has a control valve body which defines a supply passage for high pressure fuel. A control chamber and a pressure compensating chamber are provided in the control valve. The control chamber and the pressure compensating chamber are both in fluid communication with the supply passage. A control valve member is provided for controlling fuel pressure in the control chamber. The pressure compensating chamber is spaced radially outwardly from the control chamber. The invention also relates to a control valve member having a pressure compensating cavity.

Abstract: A solenoid (30) is provided. The solenoid (30) includes a magnetic core (304). The solenoid (30) also includes a pole piece (305) positioned substantially coaxially with the magnetic core (304). An over-molded component (303) is provided that is over-molded around at least a portion of the magnetic core (304) and at least a portion of the pole piece (305).

Abstract: A fuel injector comprises a supply means for high pressure fuel, an injection nozzle including a valve needle engageable with a valve needle seating to control fuel delivery from the injector, a first filling flow path providing flow from the supply means into a control chamber, and a control valve for controlling fuel pressure within the control chamber. The control valve comprises a control valve member slidable within a guide bore of a valve housing. The injector further comprises a drain flow path including a drain restriction and permitting flow from the control chamber to a second valve chamber when the control valve member is in a second state, and a second filling flow path permitting flow from a first valve chamber into the control chamber when the control valve member is in a first state, wherein the second filling flow path bypasses the drain restriction.

Abstract: An injection valve for injecting fuel into a combustion chamber of an internal combustion engine comprises a valve seat, a valve element, at least one injection opening formed in the valve seat and leading to the combustion chamber, the at least one injection opening opened or closed by a stroke motion of the valve element, a catalytic coating provided in a region of the injection valve which faces the combustion chamber, and at least one protuberance which is elongated in a direction of the combustion chamber and projects into the combustion chamber.

Abstract: A fuel injector is provided. The fuel injector includes a sleeve having a first end proximate an outlet; a piston slidingly received in the sleeve, the piston having a first end proximate the outlet; a pumping chamber at least partially defined by the sleeve between the first end of the piston and the outlet; and a normally-open inlet valve through which fuel passes to enter the pumping chamber.

Abstract: A fuel injector has an injector body and a control rod, which is movable in the injector body along an axis to control the opening/closing of a nozzle that injects fuel into a cylinder of the engine; the injector body houses a metering servovalve having a control chamber, which is axially delimited by the control rod and communicates with an inlet and with a discharge channel; the metering servovalve is provided with a shutter, which slides axially on an axial guide, from which the discharge channel exits, to open and close the discharge channel and, in consequence, vary the pressure in the control chamber; the discharge channel has three restrictions having calibrated passage sections and arranged in series with each other to divide the pressure drop along the discharge channel.

Abstract: A duel fuel system includes a plurality of fuel injectors that have a non-injection configuration, a liquid fuel injection configuration, a gaseous fuel injection configuration and a combined fuel injection configuration. Each of the fuel injectors is fluidly connected to a gaseous fuel common rail and a liquid fuel common rail. Each of the fuel injectors includes a three way gas control valve and a three way liquid control valve that move along a common centerline. A gas control chamber of each fuel injector is fluidly connected to the liquid fuel common rail by two passages in parallel when the gas control valve member is in a first position corresponding to the non-injection configuration. The liquid control chamber of each fuel injector is also fluidly connected to the liquid fuel common rail by two passages in parallel when the liquid control valve is in a first position, again corresponding to the non-injection configuration.

Abstract: An electronically controlled fuel injection valve can independently control the time to inject fuel and the amount of fuel to be injected in response to a control signal sent from the operating condition of an engine unlike a traditional mechanical fuel injection valve, and employs a control method for fuel injection that increases the force of lifting up a cutoff needle of an injection controller by delivering high-pressure fuel to a lower pressure chamber via a control needle, thereby rapidly controlling fuel injection. The electronically controlled fuel injection valve prevents a nozzle part from being constantly subjected to high pressure due to the nozzle part being not supplied with fuel when fuel is not injected, prevents a large amount of fuel from leaking into a combustion chamber when a part such as a needle is damaged, and simplifies the structure of a second flow path, thereby facilitating fabrication.

Abstract: A movable plate is movably accommodated in a pressure control chamber. A fixed plate is arranged above the movable plate, so that the movable plate is brought into contact with the fixed plate. The fixed plate has a high pressure passage for supplying fuel into the pressure control chamber and a low pressure passage for discharging the fuel from the pressure control chamber. A high pressure port and a low pressure port are formed at a lower end surface of the fixed plate. A first contacting surface is formed at the lower end surface and a first groove is formed in the first contacting surface for holding a part of fuel in a plate-contacted condition.

Abstract: The invention relates to a fuel injector comprising an actuator module 2 arranged in a holding body 1, wherein the holding body 1 is braced by means of a tension nut 13 to a nozzle body 12 by means of at least one interposed intermediate body designed as a throttle plate 11, wherein the throttle plate 11 is penetrated by at least one high pressure channel 16, an inflow channel 18 having an inflow throttle, and an outflow channel 19 having an outflow throttle, and wherein a valve actuated by the actuator module 2, said valve having at least one valve pin 4 and a sealing sleeve 5, is arranged between the actuator module 2 and the throttle plate 11, forming a leakage chamber 21 facing the throttle plate 11. According to the invention, a fuel injector is provided, wherein the leakage discharge out of the leakage chamber 21 is ensured without impairing the tightness of the fuel injector in the areas adjacent to the throttle plate 11.

Abstract: A mounting arrangement for attaching a pump arrangement to an exhaust pipe at a boss includes a delivery nozzle section and a remaining section including a pump body. The mounting arrangement includes a packing for supporting the pump body at the remaining section of the pump arrangement.

Abstract: An injection nozzle comprising a nozzle body provided with a bore within which a valve needle is moveable, the valve needle being engageable with a valve seating to control fuel delivery through a set of nozzle outlets, said nozzle outlets including respective entry openings defined in a wall of a sac volume of the nozzle body, wherein the valve needle includes a first valve region, a second valve region and a seat region defined by a transition between the first and second valve regions which seats against the valve seating when the nozzle is in a non-injecting state. The valve needle comprises a third valve region adjacent the second valve region, the third valve region having an outer surface defining a curved profile, the end of the outer surface terminating substantially in alignment with the entry openings when the valve needle is engaged with the valve seating.

Abstract: A common rail single fluid injection system includes fuel injectors ramp shaped injection curves at both the front and back ends of an injection event. This is accomplished by including a check speed control device fixed in position within the check control chamber of a fuel injector. The check speed control device controls the speed of a check by restricting fuel flowing into and out of the check control chamber.

Abstract: The invention relates to an injection system for injecting a fluid into a filter provided in an exhaust system, comprising at least two modules and at least one pressure compensation volume (44, 46, 48, 54, 56, 58), which is designed for feeding fluid to at least one of the modules and hydraulically connects at least two of the modules. Each module comprises at least one injection unit (40, 50, 60) designed for injecting fluid into the exhaust system.

Abstract: The invention relates to a fuel injector and, in particular, to a common-rail injector for injecting fuel into a combustion chamber of an internal combustion engine with a multi-part injection valve element, which can be adjusted between an open position and a closed position. A first part and a second part of the injection valve element are coupled to one another via a hydraulic coupler, which is bounded radially by a first guide for the first part and by a second guide for the second part. According to the invention, at least some sections of the first and the second guide are surrounded at their outer radii by fuel under high pressure, and the pressure realized in the hydraulic coupler is lower than the pressure radially outside the guides.

Abstract: Fuel injectors with intensified fuel storage and methods of operating an engine therewith. At least one storage cavity is provided in the intensifier type fuel injector, with a check valve between the intensifier and the needle chamber and storage cavity preventing loss of injection pressure while the intensifier plunger cylinder is refilling with fuel. This provides very efficient injector operation, particularly at low engine loads, by eliminating the wasted energy of compressing, venting and recompressing fuel for injection. Various injector designs and methods of operating the same in an engine are disclosed.

Abstract: In a method for injecting fuel into the combustion chamber of an internal combustion engine, the fuel is fed by at least one prefeed pump from a tank to at least one high-pressure pump and the high-pressure fuel fed by the high-pressure pump is supplied to the injector, wherein the injector has an injection nozzle with an axially movable nozzle needle protruding into a control chamber which can be fed with fuel under pressure and whose pressure is controlled by a control valve which opens or closes at least one inflow or outflow duct for fuel. Between the prefeed pump and the high-pressure pump, a partial volume of the fuel is branched off as a flushing volume and supplied to a flushing channel of the injector, wherein the flushing volume is directly supplied to the control valve such that the flushing volume flows at least partially through the control valve and preferably mixes with the fuel from the inflow or outflow duct, respectively.

Abstract: A fuel injector for a compression ignition internal combustion engine which comprises a fuel injection valve having an injection valve member which is moveable in use, under the influence of fuel pressure within an injection valve member control chamber acting upon it, between a closed position and an open position. The fuel injector further comprises a high pressure fuel supply passage to the injection valve member control chamber, and an actuator operable to open and close a discharge valve connected between the injection valve member control chamber and a fuel outlet passage to a low pressure reservoir or drain. A shut-off valve is provided in the high pressure fuel supply passage and the shut-off valve has a shut-off valve member which is moveable in use, under the influence of fuel pressure within a shut-off valve member control chamber acting upon it, between a closed position and an open position.

Abstract: A fuel injection device includes a cylinder that defines a pressure chamber at an end portion of a nozzle needle. A floating plate as a control member is placed in the cylinder. A cutout portion and multiple grooves are formed in the floating plate. The cutout portion and the grooves causes a gap between a large-diameter inner circumferential surface and an outer circumferential surface to communicate with the pressure chamber. The cutout portion and the grooves reduce a contact surface portion between the cylinder and the floating plate and divide the contact surface portion into multiple island portions. As a result, it is possible to reduce the contact surface portion.

Abstract: In a fuel injection device, a control body has a pressure control chamber, an inflow port and an outflow port. The inflow port and the outflow port are opened at an abutting surface exposed to the pressure control chamber. In the pressure control chamber is arranged a floating plate for pressing the abutting surface by a pressing surface with the pressure of the fuel to interrupt communication between the inflow port and the pressure control chamber. The abutting surface of the control body is provided with an outer opposite surface portion opposite to an outer edge of the pressing surface in a displacement axis direction of the floating plate, and the outer opposite surface portion has a special depressed portion that is depressed in the displacement axis direction and that extends along the shape of the outer edge of the pressing surface.

Abstract: A common rail fuel injector includes a needle valve member that moves to open and close nozzle outlets for a fuel injection event responsive to pressure in a needle control chamber. Between injection events, the needle control chamber is fluidly connected to the fuel inlet by a first pathway that includes a Z orifice, and fluidly connected to the fuel inlet by a second pathway that includes an F orifice, an intermediate chamber and an A orifice. During an injection event, the needle control chamber is fluidly connected to a drain outlet by a third pathway that includes the A orifice, the intermediate chamber an E orifice and a buffer chamber, which may assist in avoiding cavitation erosion in a sensitive area associated with a flat control valve seat. Different performance characteristics are achieved by adjusting the sizes of the respective of F, A, Z and E orifices.

Abstract: Methods, processes, and apparatuses for the large scale synthesis of carbon nanostructures are provided. The apparatus for continuous large scale production of SWNTs includes a chamber. Positioned in one end of the chamber is a piston and at the other end is a tangential vortex created by gases forced into the chamber from opposite sides of the chamber walls. The chamber can be heated to reduce or eliminate agglomeration of small particles. The piston is used to push the catalyst towards the vortex, and the injection rate is controlled by the speed of the piston and the gas flow rate to create the vortex that also act as the transport gas. Thus, greater than 1 kg/h of an aerosolized, deagglomerated dry powder catalyst can be delivered to the reactor at a constant flow rate.

Abstract: A fuel injection valve includes a nozzle needle interacting with a valve seat by longitudinal movements thereof, thus opening/closing an injection opening. The nozzle needle undergoes a locking force toward the valve seat pressure in a control space. A control valve adjusts pressure in the control space. The control valve has a control valve space connected to the control space, in which a control valve member is disposed longitudinally movably, and opens and closes a connection of the control valve space to a leakage oil space by longitudinal movement. The control valve member is surrounded by pressure in the control valve space and configured such that no or very little resulting hydraulic force acts upon the control valve member in the movement direction by the pressure in the control space, if the control valve member closes the connection of the control valve space to the leakage oil space.

Abstract: With reference to FIG. 1, the present invention provides a fuel injector (19) comprising a reed valve (35). The reed valve has at least one orifice and at least one reed valve blade, the or each reed valve blade having a valve head attached to at least one resilient spring arm. The or each valve head opens and closes a respective orifice in the valve seat. A support surrounds the reed valve blade(s). Each spring arm extending inwardly from the support. Each spring arm is curved.

Abstract: Providing a fuel injection valve of the accumulator injection system, whereby the surge pressure caused by the change of the fuel injection rate when the nozzle needle begin to be seated on is reduced or lessened; the deterioration as to the fuel injection performance and the strength of the injection valve components the deterioration which is caused by the surge pressures is prevented. A fuel injection valve of the accumulator injection system, the fuel injection valve including: a nozzle 1, a nozzle needle 2, and a control rod 23; wherein, the control rod is provided with a groove whereby the groove communicates the high pressure fuel passage prior to a fuel injection shot; the groove is disconnected to the high pressure fuel passage and the fuel is injected into an engine combustion chamber during the fuel injection shot; the groove communicates with the high pressure fuel passage at the end of the injection shot.

Abstract: The invention relates to a ball valve for adjusting a flow of a fluid medium. The ball valve includes a valve seat and a rounded closing element, in particular a valve ball. Furthermore, the ball valve has an inlet with a choke valve and one diffuser arranged between the choke valve and the valve seat. The diffuser includes a constriction on the side facing the valve seat.

Abstract: Multiple intensifier injectors with positive needle control and methods of injection that reduce injector energy consumption. The intensifiers are disposed about the axis of the injectors, leaving the center free for direct needle control down the center of the injector. Also disclosed is a boost system, increasing the needle closing velocity but without adding mass to the needle when finally closing. Direct needle control allows maintaining injection pressure on the fuel between injection events if the control system determines that enough fuel has been pressurized for the next injection, thus saving substantial energy when operating an engine at less than maximum power, by not venting and re-pressurizing on every injection event.

Abstract: A fuel injection device has therein a recovery channel provided in a first valve body, and a fuel channel provided in the first valve body and a second valve body. The fuel channel is opened by openings at a first end surface of the first valve body and a second end surface of the second valve body. One of the first end surface and the second end surface is provided with an end surface groove connected to the recovery channel. In the fuel injection device, the end surface groove is provided to enclose at least a part of the opening and is separated from the opening by a clearance, and one of the first valve body and the second valve body has a side surface groove extending in a circumferential direction at an outer periphery of the one of the first valve body and the second valve body.

Abstract: A component includes a transmission arrangement for transmitting a force between an actuator and a control valve. The transmission arrangement includes a post that is associated with the actuator. The control valve is displaceable to an open position from a closed position when an opening force is applied to the control valve that is greater than a closing force provided to the control valve. The transmission arrangement is disposed in the component between the post and the control valve actuator and arranged to mechanically transmit by physical contact an actuator force from the post to the control valve when the post begins to travel towards the extended stroke position, and hydraulically amplify the actuator stroke between the post and the control valve when the post travels from the retracted stroke position to the extended stroke position.

Abstract: A low leakage large bore fuel system includes a common rail fluidly connected to at least one of a source of heavy fuel oil and a source of distillate diesel fuel. A plurality of fuel injectors are fluidly connected to the common rail and each include a cooling inlet and a cooling outlet. Each fuel injector also includes an electrical actuator coupled to a direct operated nozzle check valve by a pilot valve member and a control valve member. Fuel leakage is reduced between injection events by equalizing pressures in a pilot control chamber and an intermediate control chamber that are separated by a guide surface of the control valve member. Also, between injection events the pilot valve member blocks a drain outlet from a common rail inlet of the fuel injector.

Abstract: An injector includes a nozzle body, a main body including a supply port on the outer peripheral surface of the main body and a high pressure passage, and a fuel pressure sensor on an outer peripheral surface of the main body to detect fuel pressure. The high pressure passage has a first passage extending from the supply port in a radial direction of the main body, and a second passage extending from a fuel downstream end portion of the first passage toward an injection hole in an insertion direction of the nozzle body. The supply port and the sensor are diametrically opposed to each other. The main body includes a sensor passage, which branches from the high pressure passage to extend from the fuel downstream end portion of the first passage in an imaginary extension of the first passage so that fuel flows into the sensor through the sensor passage.

Abstract: A dual fuel common rail fuel injector includes a first and second control valve assembly and a first and second check needle. The dual fuel injector is capable of selectively injecting two different fuels such as diesel and liquid natural gas. The first and second control valve assemblies operate using a single fuel, such as diesel, as the control medium. The dual fuel common rail injector further includes a hydraulic lock assembly.

Abstract: A common rail fuel injector includes a needle valve member that moves to open and close nozzle outlets for a fuel injection event responsive to pressure in a needle control chamber. Between injection events, the needle control chamber is fluidly connected to the fuel inlet by a first pathway that includes a Z orifice, and fluidly connected to the fuel inlet by a second pathway that includes an F orifice, an intermediate chamber and an A orifice. During an injection event, the needle control chamber is fluidly connected to a drain outlet by a third pathway that includes the A orifice, the intermediate chamber and an E orifice. Different performance characteristics are achieved by adjusting the sizes of the respective of F, A, Z and E orifices.

Abstract: A unit fuel injector (10) has a control valve (40) in which a valve spool (92) is displaceable within a bore (91) of a valve body (90) between a limit of displacement that fully opens an oil outlet port (42) to an oil inlet port (44) while closing an oil drain port (106) to the oil outlet port and a limit of displacement that closes the oil outlet port to the oil inlet port while opening the oil outlet port to the oil drain port. The valve spool has a spool body (96) whose geometry defines an exterior envelope of the valve spool. Permanent magnets (98, 100) are disposed within a bore of the spool body inside of the exterior envelope, and electromagnets (102, 104) are electromagnetically coupled with the permanent magnets for displacing the valve spool within the valve body bore.

Abstract: A fuel injection apparatus with a deterioration detection device that includes a volume changing chamber, the volume of which is determined by fuel pressure inside the injector. After injector nozzle opens, the time for the volume changing chamber to change from an initial volume to a target volume is measured and used for calculating changes in nozzle orifice size. The value of orifice size change can be used for both diagnosing injector deterioration and compensating fuel flow rate in a feedback control. In addition to detecting injector deterioration and failures, the volume changing device also dampens effects of noise in fuel pressure to fuel flow rate control and decreases chances of after-injection and second injection.

Abstract: The invention relates to an injector for a fuel injection system of an internal combustion engine, particularly in a motor vehicle, with an injector body which has a pressure booster section and a needle section. At least one injection hole is provided in the needle section. A nozzle needle which has an adjustable stroke is disposed in the needle section for controlling an injection of fuel through the at least one injection hole. A pressure booster is provided for increasing a fuel injection pressure relative to a system pressure. For this purpose, the pressure booster has a double-diameter or stepped piston, a control rod, and a pressure booster bottom which together form the boundary of a coupling chamber. A coupling path extends into the control rod and connects the coupling chamber, over a valve device which is located outside or within the injector, to a high-pressure supply of fuel.

Abstract: A unit fuel injector (30) has a boundary edge filter. A first endless annular internal space (100) is open to a holes (92) forming a fuel inlet port, a second endless annular internal space (102) that is spaced axially of the first endless annular internal space and through which fuel is supplied to an injection mechanism, and a series of circumferentially spaced apart, axially extending channels (104) through which fuel can pass from the first endless annular internal space to the second endless annular internal space.

Abstract: A fuel injection device includes a pressure control portion for controlling operation of a nozzle, and a body portion having therein a bent lead wire hole through which two lead wires of the pressure control portion are introduced to exterior. A first guide member having therein a pair of first guide grooves partitioned by a first partition member is inserted into the lead wire hole from one end side, a second guide member having therein a pair of second guide grooves partitioned by a second partition member is inserted into the lead wire hole from the other end side. The first partition member protrudes from one end portion of the first guide member to have a protrusion portion, which is fitted with a recess portion of the second partition portion at one end portion of the second guide member when the first and second guide members contact.

Abstract: A control valve includes a main body, the first coil assembly arranged on the first side of the main body and having the first contact surface and the first through hole extending from the first contact surface, the second coil assembly arranged on the second side of the main body and having the second contact surface and the second through hole extending from the second contact surface, and a spool arranged within the main body and configured to move between the first and second contact surfaces. The spool has the third contact surface facing the first contact surface, the fourth contact surface facing the second contact surface, and the third through hole extending from the third contact surface to the fourth contact surface.