With System Fluid Relief Or Return To Supply Patents (Class 239/124)
-
Patent number: 7673817Abstract: A fuel injector (1), in particular a pump-nozzle injector for a diesel engine has an injector body (50), which is held in place with a nozzle body (40) and/or a lower body (60) by a clamping nut (10, 30). The fuel supply conduit of the injector body (50) is provided with a fuel filter (20), which is offset in the longitudinal direction of the fuel injector (1) in relation to the clamping nut (10, 30) and is configured independently of said clamping nut (10, 30) on the fuel injector (1).Type: GrantFiled: February 24, 2006Date of Patent: March 9, 2010Assignee: Continental Automotive GmbHInventors: Roman Brauneis, Dejan Jovovic, Maximilian Kronberger
-
Publication number: 20100038448Abstract: A spray device that includes a swirl atomizer and a source of pressurized liquid. The atomizer includes a housing that defines a tubular chamber having a side wall, a first end wall, and a second end wall that opposes the first end wall. The atomizer further includes a bleed outlet channel in the second end wall that is configured to bleed an excess liquid from the atomizer, and a spray outlet channel in the first end wall. The spray outlet channel is narrower than the bleed outlet channel. The side wall includes a first face and a second face that opposes the first face. A length of the chamber between the first end wall and the second end wall is at least twice a width of the chamber between the first face and the second face of the side wall.Type: ApplicationFiled: December 20, 2007Publication date: February 18, 2010Applicant: HUGHES SAFETY SHOWERS LIMITEDInventors: Ghasem Ghavami-Nasr, Andrew J. Yule
-
Patent number: 7654469Abstract: A fuel injection system having one high-pressure fuel pump and one fuel injection valve, communicating with the high-pressure fuel pump, for each cylinder of an internal combustion engine. A pump work chamber is defined by a pump piston, and the fuel injection valve has an injection valve member by which at least one injection opening is controlled. An electrically actuated control valve controls a communication of the pump work chamber with a relief region and a movable control piston acts at least indirectly in the closing direction on the injection valve member, and the control piston, on its side remote from the at least one injection valve member, is acted upon at least indirectly by the pressure prevailing in the pump work chamber. The control piston, with its side toward the injection valve member, defines a control chamber.Type: GrantFiled: March 24, 2006Date of Patent: February 2, 2010Assignee: Robert Bosch GmbHInventors: Peter Boehland, Godehard Nentwig
-
Patent number: 7651037Abstract: Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said actuator being actuable to eject a droplet of fluid from a fluid channel through a respective nozzle, a support member for said at least one droplet ejection unit, a first conduit extending along said row and to one side of both said support member and said at least one droplet ejection unit for conveying droplet fluid to each of the fluid channels of said at least one droplet ejection unit; and a second conduit extending along said row and to the other side of both said support member and said at least one droplet ejection unit for receiving droplet fluid from each of the fluid channels of said at least one droplet ejection unit.Type: GrantFiled: January 5, 2001Date of Patent: January 26, 2010Assignee: Xaar Technology LimitedInventors: Paul R. Drury, Angus Condie, Jerzy M. Zaba
-
Publication number: 20090321966Abstract: A liquid distribution device is presented for the collection and distribution of liquid between reactor or adsorbent beds. The device includes a liquid collection tray, a mixing chamber in fluid communication with the liquid collection tray, a liquid distribution tray in fluid communication with the mixing chamber, and a plurality of nozzles for delivering the liquid over the top of a reactor or adsorbent bed.Type: ApplicationFiled: June 26, 2008Publication date: December 31, 2009Inventor: Paul A. Sechrist
-
Patent number: 7624933Abstract: Apparatus and methods for establishing a controllable reactive thrust in a pressure washing lance (40) linked to an extension member (20) through use of a variable bypass valve (52) and dump tube (66) combination. The bypass valve (52) is coupled to a source of high pressure fluid by a system high pressure or primary circuit (26,38). The bypass valve (52) preferably has at least one bypass input (56), which is intended to be fluidly coupled with the high pressure or primary circuit (38), and at least one each of a bypass primary output (58) and a bypass secondary output (60). Operation of the bypass valve (52) selectively couples the bypass input (56) with the bypass primary output (58) and/or the bypass secondary output (60). Fluid from the bypass primary output (58) is directed to the lance ejection nozzle (44) while fluid from the bypass secondary output (60) (secondary fluid) is directed to the dump tube (66).Type: GrantFiled: November 29, 2007Date of Patent: December 1, 2009Inventor: Tracy Boekelman
-
Patent number: 7611071Abstract: A hot melt adhesive material application system is disclosed wherein both the control module and the dispensing nozzle are effectively provided with internal alternative flow paths. A fixed orifice is internally incorporated within the dispensing nozzle such that when the hot melt adhesive material is not being supplied to the dispensing nozzle and its discharge orifice, the hot melt adhesive material can be recirculated through the dispensing nozzle and the control module in accordance with controlled backpressure parameters which correspond to the supply pressure which is characteristic of the hot melt adhesive material being supplied to the dispensing nozzle and its discharge orifice.Type: GrantFiled: April 24, 2006Date of Patent: November 3, 2009Assignee: Illinois Tool Works Inc.Inventors: Edward W. Bolyard, Jr., Mairi MacLean
-
Publication number: 20090188989Abstract: Method and device for de-icing of trains is provided in which a glycol heated treatment medium is sprayed against the underside of units in the train such as locomotive and carriages in order to remove ice which has been built up in the base frames of the units.Type: ApplicationFiled: March 31, 2009Publication date: July 30, 2009Inventor: Thomas Jemt
-
Patent number: 7513440Abstract: The invention relates to a fuel injection device with a multi-part injector body containing a pressure booster that can be actuated by means of a differential pressure chamber, and includes a pressure booster piston that seals a working chamber off from the differential pressure chamber. An on-off valve disposed above the injector body can actuate the fuel injection device. A pressure change in the differential pressure chamber occurs via a central control line that extends through the pressure booster piston of the pressure booster.Type: GrantFiled: October 7, 2003Date of Patent: April 7, 2009Assignee: Robert Bosch GmbHInventor: Hans-Christoph Magel
-
Publication number: 20090050709Abstract: A powder paint recirculation block assembly for use in a powder paint transfer assembly, and a method of operation, is disclosed. The recirculation block assembly includes a powder paint recirculation block body having an intake flow passage directing flow to an applicator flow passage leading to an application flow control assembly and a return flow passage leading to a return flow control assembly. The angles (change in direction) through which powder paint flows may be minimized to minimize potential impact fusion. The pinch rubbers in pneumatic pinch valves of the application flow control assembly and return flow control assembly may be removable to allow for valve repair.Type: ApplicationFiled: August 23, 2007Publication date: February 26, 2009Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., EFC SYSTEMS INC.Inventors: Frank P. Rauch, Eric G. Norrmalm, Fei Yang, Gunnar Van Der Steur
-
Patent number: 7478765Abstract: Spray apparatus of the kind having a liquid feed line connecting a supply of spray liquid and at least one spray nozzle, a return line from the spray nozzle to the supply and a pump for moving spray liquid from the supply to the at least one spray nozzle and for returning spray liquid from the at least one spray nozzle to the supply when the liquid is not being sprayed, characterised in that the liquid return line serves as at least a portion of the feed line when spraying.Type: GrantFiled: February 13, 2006Date of Patent: January 20, 2009Inventor: Brian George Knight
-
Patent number: 7458525Abstract: A common rail injector for injecting fuel through a high-pressure channel includes a control chamber, a control valve, and a drive unit. The control chamber applies pressure to a nozzle needle. The control valve switches communication of the control chamber between the high-pressure channel and a low-pressure channel. The drive unit selectively sets a valve element of the control valve on a low-pressure side seat or a high-pressure side seat. The drive unit has an actuator and a slide pin member. The slide pin member slides inside a slide hole to transmit a force to the valve element. A diameter of the low-pressure side seat is less than or equal to a diameter of the high-pressure side seat. The pressure in the control chamber is exerted as an assistance force, so that a high-pressure side seat closing load becomes less than or equal to a low-pressure side seat opening load.Type: GrantFiled: July 6, 2005Date of Patent: December 2, 2008Assignee: Denso CorporationInventor: Shuichi Matsumoto
-
Publication number: 20080283627Abstract: A fuel injector for internal combustion engines, the injector a nozzle needle axially guided for movement in a nozzle body to opens or close off at least one spray hole for a fuel injection, having a valve piston is guided so as to be axially moveable in a holding body and controls the opening and closing movement of the nozzle needle, having a valve piece in which the valve piston delimits a control space which is connected to a high-pressure side and which is connected by means of a control valve to a low-pressure side, and having a leakage oil return line which discharges leakage oil out of the region of the holding body. The leakage oil return line runs at least partially in the valve piece.Type: ApplicationFiled: November 27, 2006Publication date: November 20, 2008Inventors: Friedmar Dresig, Maik Paehrisch
-
Publication number: 20080210775Abstract: Apparatus and methods for establishing a controllable reactive thrust in a pressure washing lance (40) linked to an extension member (20) through use of a variable bypass valve (52) and dump tube (66) combination. The bypass valve (52) is coupled to a source of high pressure fluid by a system high pressure or primary circuit (26,38). The bypass valve (52) preferably has at least one bypass input (56), which is intended to be fluidly coupled with the high pressure or primary circuit (38), and at least one each of a bypass primary output (58) and a bypass secondary output (60). Operation of the bypass valve (52) selectively couples the bypass input (56) with the bypass primary output (58) and/or the bypass secondary output (60). Fluid from the bypass primary output (58) is directed to the lance ejection nozzle (44) while fluid from the bypass secondary output (60) (secondary fluid) is directed to the dump tube (66).Type: ApplicationFiled: November 29, 2007Publication date: September 4, 2008Inventor: Tracy Boekelman
-
Patent number: 7347385Abstract: A fuel injection device for internal combustion engines, having a control valve located between high-pressure and low-pressure sides and which opens or blocks the communication of a control chamber with the low-pressure side, and an outlet throttle located between the control valve and the low-pressure side, the control valve having a first valve position, in which the communication of the control chamber with the low-pressure side is blocked, a second valve position, in which the control chamber communicates with the low-pressure side via a first outlet conduit, and a third valve position, in which the control chamber communicates with the low-pressure side via a second outlet conduit having an outlet throttle.Type: GrantFiled: May 30, 2003Date of Patent: March 25, 2008Assignee: Robert Bosch GmbHInventor: Friedrich Boecking
-
Patent number: 7337857Abstract: In order to refine an admixing system (100) for admixing at least one extinguishing agent additive (32) to at least one extinguishing agent (22), having at least one extinguishing agent additive pump (34p1, 34p2, 34p3), particularly implemented as a component of or in the form of at least one dosing unit or at least one admixer (34), which mixes the extinguishing agent additive (32) into at least two extinguishing agent lines (26) using overpressure and which is connected to at least two watering or sprinkler units (10), in such a way that directly after the admixing system (100) is put into operation, without greater outlay, all watering or sprinkler units (10) have a mixture made of extinguishing agent (22) and extinguishing agent additive (32) available, it is suggested, that the extinguishing agent additive pump (34p1, 34p2, 34p3) be connected to each of the watering or sprinkler units (10) via at least one extinguishing agent additive line (36) in each case and that the particular extinguishing agenType: GrantFiled: April 28, 2004Date of Patent: March 4, 2008Assignee: Bernd-Dietrich RassekInventors: Alexander Vonhof, Stefan Rassek, Matthias Dietrich, Andreas Waetzoldt
-
Patent number: 7334741Abstract: A closed nozzle fuel injector is provided which effectively controls the fuel injection flow rate, especially during an initial portion of an injection event, while also permitting accurate control over pilot and/or post injection flow rates at all operating conditions thereby advantageously reducing emissions and combustion noise. The injector includes a rate shaping orifice to restrict fuel flow during an initial portion of an injection event and a rate shaping sleeve mounted for movement to cause a greater flow of injection fuel during a later portion of the injection event. A damping chamber and orifice are also provided to control movement of the rate shaping sleeve.Type: GrantFiled: January 28, 2005Date of Patent: February 26, 2008Assignee: Cummins Inc.Inventors: Donald J. Benson, David M. Rix, Lester L. Peters, Shankar C. Venkataraman, C. Edward Morris, Jr.
-
Patent number: 7334742Abstract: The present application describes a spraying device with droplet hold-back. The droplet hold-back is formed by a baffle, which collects the droplets in a defined volume. From this volume, the droplets can be suctioned by means of a suction opening and supplied to a filter system for purification. In this manner, a purified air can be supplied again to the surrounding air.Type: GrantFiled: July 8, 2005Date of Patent: February 26, 2008Assignee: Airbus Deutschland GmbHInventors: Horst Jahnke, Torsten Witting, Christian Thieme
-
Patent number: 7326302Abstract: An apparatus for processing a substrate has a liquid supply unit, a nozzle unit, a first valve and a second valve. The liquid supply unit has an output port and an input port, and a processing liquid is output from the output port. The nozzle unit has a first port and a second port, and the first port is connected to the output port of the liquid supply unit. The first valve is connected between the second port of the nozzle unit and the input port of the liquid supply unit. The second valve is connected between the second port of the nozzle unit and the output port of the liquid supply unit. Moreover, the switch states of the first and second valves are opposite in order to control whether the nozzle unit spreads the processing liquid on the substrate.Type: GrantFiled: August 24, 2004Date of Patent: February 5, 2008Assignee: Hannstar Display CorporationInventors: Kun-Hsiang Chiang, Hua-Chun Yuan
-
Patent number: 7325751Abstract: The invention relates to a sprayer (1), comprising a pneumatic turbine (5), capable of rotating a bowl (6), the turbine being connected to a pressurized gas supply line (11), for driving said turbine and to a drive gas exhaust line (12). The exhaust line (12) is equipped with an inner sleeve (13) which defines the exhaust gas flow volume (V13), an annular gap (E) with a non-zero thickness being provided between the outer surface of the sleeve (13) and the inner surface of the line (12). The structure is compatible with a temperature gradient between the optionally low-temperature exhaust gas flow volume (V13) and the material (2) which forms the exhaust line (12), the risk of condensation being thus limited.Type: GrantFiled: October 19, 2004Date of Patent: February 5, 2008Assignee: Sames TechnologiesInventors: Caryl Thome, Patrick Ballu
-
Patent number: 7316361Abstract: A fuel injector with a pressure booster supplied with fuel at high pressure. A work chamber of the pressure booster is separated from a differential pressure chamber via a booster piston. The pressure relief and the subjection to pressure of the differential pressure chamber are effected via a switching valve which communicates with the differential pressure chamber via a control line. A pressure chamber on an injection valve member communicates with a compression chamber of the pressure booster via a pressure chamber supply line. The switching valve is embodied as a direct-switching 3/2-way valve, whose valve needle is pressure-balanced and has both a sliding seat and a slide seal.Type: GrantFiled: June 17, 2004Date of Patent: January 8, 2008Assignee: Robert Bosch GmbHInventor: Hans-Christoph Magel
-
Patent number: 7311266Abstract: A freeze-proof water valve (10) for supplying secondary water under pressure in freezing ambient conditions to a snow making apparatus (11) having primary water spray nozzles (12) and secondary water spray nozzles (13,14). The valve housing (15) is provided with an interior primary water chamber (16) with a water inlet (17) and a primary water outlet (18) for continuous passage of primary water under pressure therethrough for delivery to primary water spray nozzles (12) on the snow making apparatus (11). A valve body (22,24) is mounted within this valve housing (15) within the primary water chamber (16) for flow of water therearound from the housing inlet (17) to the primary outlet (18) to prevent freeze-up of the valve body (22,24) when in the off position.Type: GrantFiled: January 10, 2006Date of Patent: December 25, 2007Inventor: Charles N. Santry
-
Publication number: 20070290069Abstract: A hydraulic reservoir arrangement supported on a self-propelled agricultural applicator is provided. The hydraulic reservoir arrangement includes a tank that is preassembled so as to define an enclosed cavity configured to receive a hydraulic fluid flow. The tank includes an opening at an uppermost surface. The arrangement further includes a return conduit that is generally linear and vertically aligned along its entire length. An angled fitting is connected at an uppermost end of the return conduit. The opposite lowermost end of the return conduit passes through the opening of the uppermost surface and extends into the cavity of the tank. Only a weld connection at an outer surface of the tank attaches the return conduit at the tank.Type: ApplicationFiled: June 16, 2006Publication date: December 20, 2007Inventor: Richard A. Moen
-
Patent number: 7303145Abstract: An air flush system for a spraying system includes an air compressor unit and an inverter. The air compressor unit integrally comprises a compressor including an electric motor configured to operate upon receipt of alternating current voltage, a tank provided in fluid communication with the compressor and configured to store air compressed by the compressor; and an outlet provided in fluid communication with the tank and configured to selectively dispense compressed air from the tank to a portion of a spraying system to facilitate purging of material from the spraying system. The inverter is configured to selectively convert direct current voltage from a vehicular electrical system into alternating current voltage suitable to operate the compressor. A method for cleaning a spraying apparatus is also provided.Type: GrantFiled: February 25, 2005Date of Patent: December 4, 2007Assignee: Finn CorporationInventor: Douglas E. Wysong
-
Patent number: 7293720Abstract: Disclosed herein is a paint circulation system for a painting line, comprising a supply channel, a return channel and a plurality of drop lines downstream of the supply channel and upstream of the return channel, a paint pump means for circulating paint through the supply channel, the drop lines and the return channel with a corresponding flow rate through each drop line, and means for establishing a flow controlling pressure differential between the supply channel and the return channel in each drop line which is directly proportional to the paint flow rate, wherein a change in the flow controlling pressure differential in a given drop line causes a corresponding proportional change in the paint flow rate through the given drop line.Type: GrantFiled: October 31, 2003Date of Patent: November 13, 2007Assignee: Honda Motor Co., Ltd.Inventor: Paul B. Ramsay
-
Patent number: 7290723Abstract: The present invention is directed to a device for splitting a propelled aerosol cloud. The device utilizes a curved spray chamber and a thermal technique to divert any desired portion of the aerosol to waste. The remainder of the aerosol is made available to an ELSD or similar instrument for analysis.Type: GrantFiled: February 23, 2004Date of Patent: November 6, 2007Inventors: Jiang Lu, Samuel Frederick Azlein
-
Publication number: 20070194145Abstract: An apparatus of thinning a glass substrate includes at least one chemical spray member, a chemical supply member, and a bath. The chemical spray member includes a first tube and a second tube enclosing the first tube. The first tube has a plurality of first spray holes disposed along a first direction. The second tube has at least one second spray hole disposed at a lateral portion of the second tube along a second direction. The chemical supply member includes a connection tube and a press pump. The connection tube is coupled to the chemical spray member, and the press pump is disposed at an end portion of the connection tube. The bath includes a chemical receiving member for storing chemicals and a fence disposed on the chemical receiving member. The fence receives the chemical spray member.Type: ApplicationFiled: February 13, 2007Publication date: August 23, 2007Inventors: Gi-Won Lee, Seung-Ju Choi, Kwang-Ju Sung
-
Publication number: 20070170279Abstract: A printer including a recording head, a flushing box and a movement mechanism is disclosed. The recording head has a nozzle-forming surface in which nozzle openings are defined and ejects a liquid through the nozzle openings. The flushing box has an opening corresponding to the nozzle openings and is capable of receiving the liquid ejected from the nozzle opening as a waste liquid. The movement mechanism moves the flushing box between a receiving position at which the flushing box is capable of receiving the waste liquid and a non-receiving position at which the flushing box is incapable of receiving the waste liquid. The receiving position is a position at which the opening is closely opposed to the nozzle-forming surface, and the non-receiving position is spaced from the receiving position.Type: ApplicationFiled: January 25, 2007Publication date: July 26, 2007Applicant: SEIKO EPSON CORPORATIONInventors: Taisuke Yamamoto, Koji Harada
-
Patent number: 7246758Abstract: A metal atomizing device includes a casing with an inlet tube for providing liquid metal into the casing and an outlet is defined through the casing. The inlet tube and the outlet share a common axis. A polygonal impact member is located at an outlet of the inlet tube and a plurality of gas inlets are connected to the casing so as to provide noble gas into the casing and mixed with the liquid metal that impacts on the impact member. A collection member is located at the outlet of the casing and a pipe communicates with the collection member and the inlet tube so as to send the larger particles into the casing.Type: GrantFiled: January 31, 2006Date of Patent: July 24, 2007Inventor: Muh-Rong Wang
-
Patent number: 7216815Abstract: A servo-valve for a fuel injector equipped with a pressure booster whose working chamber is separated from a differential pressure chamber by a booster piston in which an actuator can connect a control chamber to a first low-pressure return and the differential pressure chamber can be connected to a second low-pressure return or to a return system in which the returns are connected to each other. A first servo-valve piston has a first sealing seat, and a second piston, embodied as a sealing sleeve, is accommodated on the first servo-valve piston and, together with a valve housing, constitutes a second sealing seat. When the pressure in the control chamber is relieved, this second sealing seat is closed with a shorter stroke, sooner than the first sealing seat. When the control chamber is subjected to pressure, the second sealing seat opens only after the first sealing seat is closed.Type: GrantFiled: June 17, 2004Date of Patent: May 15, 2007Assignee: Robert Bosch GmbHInventor: Hans-Christoph Magel
-
Patent number: 7210639Abstract: A fuel injector having an injection valve connected to a high-pressure source and a control valve including a control piston guided in a valve body and comprising a pressure piston section having a first pressure surface guided in a bush and a control piston section with a sliding seal that has a control edge; the bush is contained in a pressure chamber of the valve body. In a first valve position, a sealing seat of the control piston disconnects a valve chamber from a low-pressure/return system and in a second valve position, the control edge of the control piston disconnects the pressure chamber from the valve chamber; in the second valve position, a connection is simultaneously produced between the valve chamber and the low-pressure/return system, thus initiating an actuation of the fuel injection valve. The control piston section with the control edge is guided in a control cylinder that is contained in the pressure chamber of the valve body and is separate from the bush.Type: GrantFiled: March 30, 2005Date of Patent: May 1, 2007Assignee: Robert Bosch GmbHInventor: Hans-Christoph Magel
-
Patent number: 7198204Abstract: A portable pressure washer having a pump mechanism that is supported by a plurality of wheels. The pump mechanism has a rearwardly extending inlet connection and a forwardly extending outlet connection.Type: GrantFiled: April 28, 2005Date of Patent: April 3, 2007Assignee: Black & Decker Inc.Inventors: Ralph D Bennett, Christopher J Murray, Robert H Gifford
-
Patent number: 7140555Abstract: A line marker carries a spray nozzle assembly for marking or painting a line on a horizontal surface. The line marker has a hydraulic circuit which includes a reservoir for holding marking liquid therein and a tank for holding water therein. A pump can pump marking liquid through the spray nozzle during a marking mode of operation or water through the spray nozzle during a flush mode of operation. In the marking mode, at least some marking liquid is recirculated back through the reservoir to help keep the marking liquid in the reservoir agitated and mixed. In the flush mode, water is blocked from entering the reservoir and is recirculated back into the water flow from the tank. In the clean out mode, the hydraulic circuit is operated as if in the marking mode, except that the reservoir is rinsed with an external source of water with the rinse water circulating through the hydraulic circuit and back to the reservoir.Type: GrantFiled: May 19, 2005Date of Patent: November 28, 2006Assignee: The Toro CompanyInventors: Benjamin A. Bricko, Timothy S. Martinson
-
Patent number: 7124961Abstract: A sprayer system includes one or more spray nozzle systems and a recirculation line which contains a Venturi for recirculation of non-sprayed liquid into a tank during breaks in spraying. To facilitate circulation, restrictors are placed in an upstream area of each nozzle system feeding line, and a downstream control valve is inserted between each nozzle system and the recirculation line. Each nozzle system can be independently controlled. Closing a control valve activates the spraying system associated with that valve, whereas opening the valve enables the liquid to circulate through the recirculation line into the tank to prevent unwanted dripping, demixing and depositing.Type: GrantFiled: November 14, 2003Date of Patent: October 24, 2006Assignee: John Deere Farbriek Horst B.V.Inventor: Jaap Wilting
-
Patent number: 7121476Abstract: A fuel injection device, which has: a nozzle needle, guided displaceably in a nozzle body, which as a function of its position opens or closes at least one injection opening, in which a control chamber, to which fuel can be delivered under pressure via an inlet throttle and from which fuel can be diverted, controlled by a control valve, via an outlet throttle, is provided at a piston face of the nozzle needle facing away from the injection opening, and in which in operation, the position of the nozzle needle is controlled by a pressure difference between the pressure in the control chamber and the pressure of the fuel at the end, toward the injection opening, of the nozzle needle, is characterized in that the nozzle needle is surrounded, over at least part of its length, during operation by fuel at high pressure, such that only in the regions of the nozzle needle near the injection opening and in the control chamber can a lower pressure, differing from the high fuel pressure, occur.Type: GrantFiled: November 4, 2005Date of Patent: October 17, 2006Assignee: Robert Bosch GmbHInventors: Christoph Buehler, Juergen Frasch, Christoph Butscher, Michael Scheurer, Stephan Wehr
-
Patent number: 7112260Abstract: Device and process for cleaning a circulating belt, the device using a cleaning device having at least one nozzle. The process includes feeding a pressurized fluid to the at least one nozzle, and subjecting the circulating belt to the pressurized fluid via the at least one nozzle. The pressurized fluid has a temperature in a range of between approximately 90° C. and approximately 160° C.Type: GrantFiled: July 3, 2002Date of Patent: September 26, 2006Assignee: Voith Paper Patent GmbHInventors: Karlheinz Straub, Michael Sollinger
-
Patent number: 7108200Abstract: Fuel injectors and methods of fuel injection allowing direct control of the flow of fuel at an intensified pressure to the needle. A valve, typically a spool valve, is placed in the fuel passage between the intensifier actuation piston and the needle, and controlled by a control valve which may be independent of the control valve controlling the coupling of actuation fluid and a vent to the intensifier actuation piston. This allows achievement of intensification before initiating injection, and control of multiple injections in a single injection event while maintaining fuel intensification throughout the duration of the injection event. Various embodiments are disclosed, including embodiments having multiple intensifiers, having control of pressure over the needle, having two stage control valve systems for control of intensifier actuation fluid, and combining control of one of the intensifiers and the valve controlling flow of intensified fuel to the needle for injection.Type: GrantFiled: May 28, 2004Date of Patent: September 19, 2006Assignee: Sturman Industries, Inc.Inventor: Oded E. Sturman
-
Patent number: 7104465Abstract: A retort is described for use with paperboard containers (48) to reduce moisture absorption during processing of foodstuffs therein. The improvement includes using solid cone spray nozzles (50) with spray angles in the range of about 100 degrees to about 115 degrees. In one embodiment, the distance (D?) between the nozzles and the container is in the range of about 70 mm to about 200 mm. In another embodiment, the flow rate if each nozzle (50) is reduced relative to known systems, while the total vessel flow rate is kept the same as per cubic meter load. Further, an overpressure may be added to the vessel via compressed air. In accordance with other aspects, an Impact reduction is used which relates nozzle flow rate, pressure, distance, etc. with moisture absorption in paperboard containers.Type: GrantFiled: May 9, 2003Date of Patent: September 12, 2006Assignee: FMC Technologies, Inc.Inventors: Gustaaf Persoons, Hans De Cock, Marc Roels
-
Patent number: 7083113Abstract: A fuel injection apparatus for injecting fuel into the combustion chambers of an internal combustion engine. includes a high pressure accumulator, a pressure booster, and a metering valve. The pressure booster includes a working chamber and a control chamber that are separated from each other by an axially movable piston. A pressure change in the control chamber produces a pressure change in a compression chamber that acts on a nozzle chamber via a fuel inlet. The nozzle chamber encompasses a nozzle needle. A nozzle spring chamber that acts on the injection valve element can be filled on the high-pressure side via a line that leads from the compression chamber and contains an inlet throttle restriction. On the outlet side, the nozzle spring chamber is connected to a chamber of the pressure booster via a line that contains an outlet throttle restriction.Type: GrantFiled: April 9, 2003Date of Patent: August 1, 2006Assignee: Robert Bosch GmbHInventors: Martin Kropp, Hans-Christoph Magel, Manfred Mack, Christian Grimminger
-
Patent number: 7066400Abstract: A fuel injection system for internal combustion engines with a fuel injector that can be supplied from a high-pressure fuel source has an injection valve, with injection nozzles pointing toward the combustion chamber, and coaxial inner and outer nozzle needles assigned to the injection nozzles are triggerable as a function of pressure to open and close various injection cross sections at the injection nozzles. Each of the nozzle needless is assigned a respective damping piston, and the damping pistons are movable relative to one another and act on a damping chamber which can be made to communicate with a low-pressure return system via an outlet throttle. In addition to the damping chamber, a closing chamber is provided, to which an end face of the outer nozzle needle is exposed in the closing direction.Type: GrantFiled: March 2, 2005Date of Patent: June 27, 2006Assignee: Robert Bosch GmbHInventors: Achim Brenk, Martin Kropp
-
Patent number: 7055763Abstract: A mist generating apparatus having a casing that is divided into a storage chamber, a pump chamber, a waterwheel chamber and a mist chamber. The storage chamber is provided with a water storage tank having a heater, while the pump chamber is provided with a pump. A waterwheel located in the waterwheel chamber and a fan located in the mist chamber are provided around a rotating axis so as to rotate together, and then warm water in the water storage tank is sprayed onto the waterwheel by means of the pump, whereby mist is generated. The generated mist is guided to the mist chamber by means of the fan with warm air from a warm air generator and is discharged from an outlet.Type: GrantFiled: February 28, 2003Date of Patent: June 6, 2006Assignee: Sera Corporation Inc.Inventor: Kenji Torigoe
-
Patent number: 7040555Abstract: A nozzle unit for the spreading of foamed glue onto a flat surface in the production of wood-based sheets, wherein the nozzle unit has a feeder canal (1) for directing glue into the nozzle unit, a row of nozzles (5) for directing glue from the nozzle unit onto a flat surface and also a distribution canal network between the feeder canal and the nozzles for distributing glue evenly to the nozzles. According to the invention, the area of the distribution canal network has a compensation canal (9) closed to/from external, that forms a free flow channel between the branches of the distribution canal network leading to the nozzles (5).Type: GrantFiled: December 31, 2003Date of Patent: May 9, 2006Assignee: Raute OyjInventors: Timo Miinalainen, Gatja Ronka, Jouni Rainio, Ari-Pekka Tiusanen, Petri Lammi
-
Patent number: 7025288Abstract: A gas sprayer mounted on an edge removing robotic arm is disclosed, wherein the edge removing robotic arm circles around along the edges of a substrate and sprays a chemical solvent over the edge surface of the substrate to dissolve photoresist materials attached to the edges of the substrate; the edge removing robotic arm has a pumping conduit for sucking out the chemical solvent sprayed over the surface of the substrate and dissolved photoresist particles; the gas sprayer is mounted on the top of the edge removing robotic arm and comprises a hooked nozzle extending forward around the front end of the edge removing robotic arm and facing an opening of the pumping conduit to spray gas out so as to prevent the chemical solvent sprayed out from the edge removing robotic arm from splashing onto the interior of the substrate.Type: GrantFiled: April 24, 2003Date of Patent: April 11, 2006Assignee: Au Optronics Corp.Inventor: Chao-Min Wu
-
Patent number: 7025284Abstract: A fuel injection system having a high-pressure fuel pump and a fuel injection valve connected to it for each cylinder of the internal combustion engine. A pump piston of the high-pressure fuel pump delimits a pump working chamber that is connected to a pressure chamber of the fuel injection valve, which has an injection valve element that controls injection openings and can be moved in an opening direction counter to a closing force by the pressure prevailing in the pressure chamber. A first control valve controls a connection of the pump working chamber to a relief chamber and a second control valve controls a connection of a control pressure chamber which communicates with the pump working chamber, to a relief chamber. A throttle restriction is respectively provided in connections of the control pressure chamber to the pump working chamber and the relief chamber.Type: GrantFiled: December 6, 2002Date of Patent: April 11, 2006Assignee: Robert Bosch GmbHInventor: Peter Boehland
-
Patent number: 7021565Abstract: Common rail fuel injectors typically have difficulty in changing an injection rate during an injection event. Fuel injectors for this common rail fuel injection system include a multi-position admission valve. The admission valve is stoppable at a middle position to inject fuel at a low rate. The lower rate is accomplished by leaking some fuel to drain to reduce injection pressure. The admission valve is also stoppable at a fully open position to inject fuel at a high rate. Fuel injection events are ended, and the fuel injectors maintained between injection events, with the admission valve member in contact with a supply seat to close the high pressure supply passage. This strategy can be used in conjunction with a spring-biased needle valve member to expand fuel injector capabilities.Type: GrantFiled: February 10, 2004Date of Patent: April 4, 2006Assignee: Caterpillar Inc.Inventors: Dana R. Coldren, Richard R. Ohs, Scott F. Shafer, Yongxin Wang
-
Patent number: 7014126Abstract: A sorting machine for diverting an article from an article stream generally includes a manifold, a first valve supported on the manifold and a second valve supported on top of the first valve. The manifold has a first blow-off conduit and a second blow-off conduit formed therein. The first blow-off conduit terminates at a first blow-off port and the second blow-off conduit terminates at a second blow-off port. The first valve is in fluid communication with the first blow-off conduit of the manifold for supplying a burst of fluid out of the manifold through the first blow-off port to divert an article from an article stream intersecting with the first blow-off port. The first valve further has a by-pass duct in fluid communication with the second blow-off conduit of the manifold.Type: GrantFiled: March 17, 2004Date of Patent: March 21, 2006Assignee: Festo CorporationInventors: Marcus Boertje, Michael Foy
-
Patent number: 7007860Abstract: A fuel injector in an engine includes a spring cavity, a piston, a plunger, a spring, a fuel cavity, and a stop plate. The piston is hydraulically controlled to force the plunger down to compress fuel in the fuel cavity. However, under certain conditions, the plunger can contact the stop plate and/or the spring can become overcompressed. Both of these conditions can cause damage to the fuel injector. The present invention locates a pressure equalization channel in such a way as to dampen the motion of the piston to prevent this damage to the fuel injector.Type: GrantFiled: August 30, 2002Date of Patent: March 7, 2006Assignee: Caterpillar Inc.Inventors: Tan Dongming, Thomas R. McClure, Scott R. Schuricht, Wang Yongxin
-
Patent number: 6994273Abstract: A fuel injection valve for an internal combustion engine which includes an axially moveable needle-like injection valve member 10 mounted in a tubular housing 2. A control element 22 with a control passage 25 is mounted in the upper end portion of the housing, and a valve element 21, 41, 46 is mounted for movement below the control element. A control chamber 20 is formed below the valve element, and a control piston 18 which is formed at the upper end of the valve member 10 bounds the lower side of the control chamber. A throttle passage 26, 42, 47 in the valve element is connected via a throttle constriction between the control passage 25 in the control element 22 and the control chamber 20. A throttle inlet 33, which is formed in the valve element 21 or in a sleeve 19 which laterally bounds the control chamber, is connected between a high pressure chamber 9 in the housing and the control chamber 20 without passage through an intermediate throttle point.Type: GrantFiled: August 18, 2004Date of Patent: February 7, 2006Assignee: CRT Common Rail Technologies, AGInventors: Marco Ganser, Markus Tappolet, Andreas Carelli
-
Patent number: 6991180Abstract: A spray applicator for dispensing a multiple component reactant mixture and for also dispensing purge materials. The applicator has a valve plate with a plurality of valve seats for cylindrical valve elements that are arcuately shifted by a control air circuit.Type: GrantFiled: October 1, 2004Date of Patent: January 31, 2006Assignee: Lear CorporationInventors: Joseph T. Donatti, Kenneth W. Shaner, Andrew P. Mellentine, Ian S. Williams
-
Patent number: 6986474Abstract: A control module (1) for an injector of an accumulator injection system is used to control and guide a valve body (8). The control module comprises a high pressure supply line (2) for supplying fuel, and a guiding device (3) for guiding the valve body (8). A control room (4), an inlet throttle (5) and an outlet throttle (6) are also provided. The inlet throttle (5) connects the high pressure supply line (2) to the control chamber (4) and the outlet throttle (6) connects the control chamber (4) to a control valve (15). A control piston (7) is arranged in the control chamber (4), the end of the control piston opposite the control chamber (4) being connected to a high pressure region (9) on the valve body (8).Type: GrantFiled: December 31, 2003Date of Patent: January 17, 2006Assignee: Siemens AktiengesellschaftInventors: Wolfgang Bloching, Willibald Schürz