Multiple Valves Patents (Class 261/42)
  • Patent number: 10233870
    Abstract: A control diaphragm for controlling a fuel feed in a diaphragm carburetor of an internal combustion engine, includes a central, substantially flat feeling region, a functional region circumferentially extending around the feeling region in a concentric manner, and a peripheral fastening border for fastening the control diaphragm. The control diaphragm closes off a control chamber of the diaphragm carburetor in a sealing manner in the installed state and is operatively connected by the central feeling region to a controlling lever of the diaphragm carburetor arranged in the control chamber, which controlling lever feels the axial deflection of the feeling region in accordance with an operating-related pressure change in the control chamber.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 19, 2019
    Assignee: D√ĄTWYLER SCHWEIZ AG
    Inventors: Bruno Gisler, Norbert Haberland
  • Publication number: 20140342071
    Abstract: There is provided a mixing device (2) for a beverage and CO2 gas for producing carbonated beverage. The mixing device (2) comprising a mixing channel (4) extending in a main direction (10). The mixing channel (4) comprises wide channel sections (16) and narrow channel sections (18) along the main direction (10). The mixing channel (4) has an elongated cross section seen in a direction perpendicular to the main direction (10). At least a first delimiting surface (22) of the mixing channel (4) is provided with protrusions (20) extending at least partially along the first delimiting surface (22) in a direction across the mixing channel (4) and protruding towards a second delimiting surface (24) of the mixing channel (4) to form the narrow channel sections (18). A turbulent flow of beverage is created by the narrow and wide channel sections. Further a carbonator for producing carbonated beverage, an appliance comprising a carbonator, and a method of producing a carbonated beverage are provided.
    Type: Application
    Filed: November 11, 2011
    Publication date: November 20, 2014
    Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
    Inventor: Andreas Psilander
  • Publication number: 20140327159
    Abstract: A soda machine with a safety fitting, which includes a carbon dioxide steel cylinder, a soda cylinder, a gas outlet controller fitted to the carbon dioxide steel cylinder and a gas inlet fitted to the soda cylinder; said gas outlet controller includes a gas inlet body, a drive rod, a valve core and a valve core seat, the gas inlet body including a drive rod channel, a valve core seat chamber and a gas outlet hole; a limit disk being provided at a junction area of the drive rod and the valve core; and further comprising a safety valve, a gas inlet hole of the safety valve communicating to the gas outlet controller, and a gas outlet hole communicating to the gas inlet.
    Type: Application
    Filed: March 12, 2012
    Publication date: November 6, 2014
    Inventor: Ning Song
  • Publication number: 20140255574
    Abstract: A batch carbonation apparatus includes a housing defining a vessel cavity. The housing includes an agitation mechanism. The pressure vessel includes a cap that has a CO2 inlet and a CO2 outlet is provided. The pressure vessel also includes a seal. The pressure vessel is moveable into an out of the vessel cavity. A locking mechanism is provided and is attached to the agitation mechanism to removably lock the cap and seal relative to the pressure vessel. A CO2 source is connected to a plurality of valves where each valve has a differing pressure. A selection toggle is attached to the housing. A control mechanism is coupled to the plurality of valves. A user selects a desired carbonation level using the selection toggle and CO2 is introduced to the pressure vessel at a specified pressure wherein the agitation mechanism agitates liquid within the pressure vessel forming a carbonated beverage having a selected carbonation level. Also disclosed is a process of forming a carbonated beverage in a batch.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: Cornelius Inc.
    Inventors: David K. Njaastad, Scott Sevcik, Peter S. Tinucci
  • Publication number: 20140242218
    Abstract: A refrigerator may include a carbonated water tank in which carbonated water is stored; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; a dispenser discharging the carbonated water or the filtered water; and a controller, if the filtered water is supplied to the carbonated water tank and supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water, wherein the controller stops producing the carbonated water if a discharge instruction of the filtered water is input from a user or if a door of the refrigerator is opened while the carbonated water is produced.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho CHO, Kyung Tae KO, Jung Yeob KIM, Seong Wook JEONG
  • Patent number: 8783664
    Abstract: An automatic choke apparatus for a carburetor includes an electric actuator, a choke valve opening/closing mechanism configured to open and close a choke valve by being driven by a power exerted by the electric actuator, and a controller configured to control operation of the electric actuator. The controller, to which a battery supplies electric power, operates the electric actuator and the choke valve opening/closing mechanism in order that, when the engine is stopped, the choke valve is set in a semi-opened position and, when the engine starts to be cranked, the choke valve is set in a fully-closed position. Accordingly, it is possible to prevent the choke valve from freezing up in the fully-closed state in a case where the engine is stopped under an extremely low temperature environment.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: July 22, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventor: Tetsuya Arai
  • Publication number: 20140193558
    Abstract: A milk emulsifying method and unit, whereby a first flow of milk, fed along a first feed line (7) to an emulsifying chamber (5), draws a second flow of air from the outside along a second feed line (8) converging with the first feed line (7) upstream from the emulsifying chamber (5); the second flow being subjected to a repeat chopping operation, in which chopping is regulated in both frequency and duty cycle.
    Type: Application
    Filed: October 6, 2011
    Publication date: July 10, 2014
    Applicant: N & W GLOBAL VENDING S.P.A
    Inventor: Claudio Mosconi
  • Publication number: 20130319236
    Abstract: A scrubber system for treating exhaust gas in a marine vessel with a water based solution includes a first scrubber unit and a second scrubber unit, an exhaust gas inlet in the first scrubber unit and an exhaust gas outlet in the second scrubber unit and a second conduit section connecting the first scrubber unit to the second scrubber unit, a first scrubbing medium circuit and a second scrubbing medium circuit. The first scrubber medium circuit is provided with a source of scrubbing solution having a first connection to an outside of a hull of the vessel beneath the water line of the vessel and the second scrubber medium circuit is provided with a source of scrubbing solution having a source of fresh water in the vessel.
    Type: Application
    Filed: February 15, 2012
    Publication date: December 5, 2013
    Applicant: Wartsila Finland Oy
    Inventor: Ari Suominen
  • Publication number: 20130309361
    Abstract: A refrigerator having a carbonated water production module integrally provided with a carbon dioxide gas cylinder having carbon dioxide gas stored therein and a carbonated water tank to mix purified water with the carbon dioxide gas to produce carbonated water. The carbonated water production module is mounted to the rear surface of the door, and thus it may be cooled by cool air in the refrigeration compartment and be easy to access, and thereby repair and replacement thereof is facilitated. The dispenser includes a carbonated water discharge channel into which carbonated water from the carbonated water tank is discharged, and a purified water discharge channel into which purified water from the water tank is discharged. Since the purified water discharge channel does not pass through the carbonated water tank, a user is allowed to selectively dispense purified water or carbonated water anytime.
    Type: Application
    Filed: April 2, 2013
    Publication date: November 21, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yong Soo KYONG, Sang Tak Lee, Kyung Ho Hwang, Hyun Hee Lim
  • Patent number: 8448622
    Abstract: An internal combustion engine that includes a carburetor having a choke valve and an actuator configured to move the choke valve between a closed choke position and an open choke position. A passageway is configured to direct a pressure pulse from the engine into a fuel chamber of the carburetor. The engine further includes a priming valve at least partially located within the passageway. The priming valve is configured to move between an open primer position that allows the pressure pulse to enter the fuel chamber through the passageway and a closed primer position that substantially restricts the pressure pulse from entering the fuel chamber through the passageway. The priming valve is configured to move between the open primer position and the closed primer position by the actuator when the actuator moves the choke valve between the closed choke position and the open choke position, respectively.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: May 28, 2013
    Assignee: Briggs and Stratton Corporation
    Inventor: Jason Raasch
  • Publication number: 20130108760
    Abstract: An inline carbonation apparatus includes a fluid tube having an inner diameter. A water flow control module is connected to a water source. At least one water orifice is linked to the water flow control module and is attached at one end of the fluid tube. The water orifice includes a plurality of holes atomizing water passing therethrough. A carbon dioxide source is connected to a carbon dioxide valve. The carbon dioxide solenoid valve is connected to a carbon dioxide regulator that is coupled to a carbon dioxide orifice and attached to the fluid tube in a spaced relationship from the water orifice. The atomized water has a pressure less than the carbon dioxide such that carbon dioxide is absorbed into the water forming carbonated water having a specified volume of carbonation. The water control module regulates a water flow rate into the inline carbonation apparatus.
    Type: Application
    Filed: April 26, 2012
    Publication date: May 2, 2013
    Inventors: Santhosh Kumar, Ted Jablonski, Jayateertha Malagi, A.R. Servesh, Nishant Kulkarni, Ravi Malavat
  • Publication number: 20130082410
    Abstract: A container assembly includes a flexible bag having an interior surface bounding a chamber and an opposing exterior surface, the bag having a top end wall, a bottom end wall, and an encircling sidewall extending therebetween, the bottom end wall including a first polymeric sheet overlying a second polymeric sheet. A first weld line welds the first polymeric sheet to the second polymeric sheet, the first weld line bounding a first sparging area formed between the first polymeric sheet and the second polymeric sheet. A plurality of first perforations are formed through a portion of the first polymeric sheet that overlies the first sparging area so that gas can pass from the first sparging area, through the first perforations and into the chamber of the bag.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 4, 2013
    Applicant: HYCLONE LABORATORIES, INC.
    Inventor: HYCLONE LABORATORIES, INC.
  • Publication number: 20120247435
    Abstract: Various embodiments include two-stroke stratified engines and dual passage carburetors for use with gaseous fuel, such as hydrogen, methane, liquid petroleum gas, pure propane, and butane. A stratified air-head engine and low pressure fuel injected engines with fuel only tube is included.
    Type: Application
    Filed: March 21, 2012
    Publication date: October 4, 2012
    Inventors: Jay S. Veerathappa, Nagesh S. Mavinahally
  • Patent number: 8256747
    Abstract: A system and method for closed-loop testing of a biological or chemical sensor is disclosed. The tester is fluidically coupled to the input port and exhaust port of a sensor. A mixture of a chemical or biological simulant and air is generated by the tester and is delivered to the sensor. The mixture of simulant and air exiting the sensor is delivered to a collection device.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: September 4, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Kevin J. Tupper
  • Publication number: 20120218852
    Abstract: A device for dispersing a suspension with at least one gas includes a dispersion nozzle, which, viewed in the flow direction of the suspension, successively comprises: a suspension nozzle tapering in the flow direction; a mixing chamber into which the suspension nozzle leads; a mixing tube that adjoins the mixing chamber and is tapered in the flow direction; and at least one gas supply line for supplying the at least one gas into the mixing chamber, the suspension nozzle comprising at least a quantity of N=3 gas channels connected to the at least one gas supply line, said gas channels leading to an end face of the suspension nozzle facing the mixing chamber. The device may further include a number A of gas valves, where N=A, wherein a gas control valve is associated with each gas channel for metering a gas volume of the gas supplied to the suspension through the respective gas channel. A flotation machine comprising such a device and methods for operating the device and flotation machine are also provided.
    Type: Application
    Filed: September 28, 2010
    Publication date: August 30, 2012
    Inventors: Norbert Becker, Wolfgang Krieglstein
  • Publication number: 20120164295
    Abstract: Method of preparing beverages using a beverage preparation machines and in particular a beverage preparation machine of the type which uses pre-packaged containers of beverage ingredients. The method includes controlling the volume of air resident in at least a part of a delivery system of the machine to produce predetermined characteristics in a prepared beverage.
    Type: Application
    Filed: March 24, 2010
    Publication date: June 28, 2012
    Inventors: Nick Andrew Hansen, Andrew Charles Bentley, Elizabeth Jane Hinckley, Mark Richard Thomas Norton
  • Patent number: 8096532
    Abstract: Hot water is pumped by a suction pump and introduced into a carbon dioxide (CO2) gas dissolver through solution flow rate adjusting means and then poured into a bath. The CO2 is introduced into the CO2 gas dissolver through gas flow rate adjusting means, and the quantity of bubbles in an artificial carbonated spring in a take-out pipe is measured. The solution and gas flow rate adjusting means are controlled via a control device using a relationship expression between a preliminarily set quantity of bubbles and carbon dioxide concentration to obtain a desired concentration of carbon dioxide gas in the carbonated spring. Since the carbon dioxide gas flow control means is provided between the carbon dioxide gas dissolver and a carbon dioxide gas supply source, a high concentration carbonated spring can always be manufactured, even if the pressure of supplied carbon dioxide gas changes or membrane permeation changes.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: January 17, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroki Sakakibara, Ken Ooyachi, Hiroshi Tasaka
  • Publication number: 20110220074
    Abstract: Various embodiments include a two-stroke engine and a carburetor for use with gaseous fuel, such as hydrogen, methane, liquid petroleum gas, pure propane, and butane.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 15, 2011
    Inventor: Jay Sirangala Veerathappa
  • Patent number: 8017527
    Abstract: Apparatuses and methods for diverting a flow of a liquid precursor during flow stabilization and plasma stabilization stages during PECVD processes are effective at eliminating particle defects in PECVD films deposited using a liquid precursor.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: September 13, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Arul N. Dhas, Ming Li, Joseph Bradley Laird
  • Publication number: 20110180148
    Abstract: Embodiments disclosed herein can introduce low amounts of gas in a liquid with fast response time and low variation in concentration. In one embodiment, a gas is directed into an inlet on a gas contacting side of a porous element of a contactor and a liquid is directed into an inlet on a liquid contacting side of the porous element of the contactor. The liquid contacting side and the gas contacting side are separated by the porous element and a housing. The gas is removed from an outlet on the gas contacting side of the porous element at a reduced pressure compared to the pressure of the gas flowing into the inlet of the contactor. A liquid containing a portion of the gas transferred into the liquid is removed from an outlet on the liquid contacting side of the porous element, producing a dilute bubble free solution.
    Type: Application
    Filed: May 18, 2009
    Publication date: July 28, 2011
    Inventors: Yanan Annie Xia, J. Karl Niermeyer, Rosario Mollica, Gregg T. Conner
  • Publication number: 20110134716
    Abstract: Devices, systems, and methods employed in wet cleaning semiconductor devices are provided. In particular, systems that can deliver deionized water with the desired concentration of CO2 and methods of generating deionized water with a desired concentration of CO2 for use in wet cleaning of semiconductor devices are provided.
    Type: Application
    Filed: June 2, 2010
    Publication date: June 9, 2011
    Applicant: MKS Instruments, Inc.
    Inventors: Johannes Seiwert, Ulrich Brammer, Christiane Gottschalk, Joachim Lohr
  • Patent number: 7603774
    Abstract: A mechanical draft cooling tower includes an air inlet and an air outlet. A liquid spray assembly is provided below the air outlet. A fill shell assembly is provided below the liquid spray assembly such that liquid can be sprayed onto the fill sheet assembly. An indirect heat exchange assembly is mounted beneath the fill sheet assembly. The indirect assembly usually comprises a series of coils through which a fluid to be cooled is circulated. A first air inlet is provided beneath the fill sheet assembly and includes a closing assembly. A second air inlet is provided beneath a top surface of the indirect assembly and includes a closing assembly.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 20, 2009
    Assignee: Baltimore Aircoil Company, Inc
    Inventors: Timothy P. Facius, Frank T. Morrison
  • Patent number: 7521029
    Abstract: The invention relates to a tubular reactor for carrying out catalytic gas-phase reactions, containing a catalyst tube bundle (8) that is traversed by the relevant reaction gas mixture, is filled with a catalyst, extends between two tube sheets (4, 148) and around which flows a heat transfer medium contained within a surrounding reactor jacket (6). The reactor also comprises gas entry and discharge hoods (2; 60) that cover the two tube sheets for supplying the relevant process gas to the catalyst tubes and for discharging the reacted process gas from the catalyst tubes. Together with all the parts that come into contact with the process gas mixture, the reactor is designed to have an appropriate strength for withstanding the deflagration and explosive pressures that are to be taken into account during its operation. The volume available to the process gas mixture prior to its entry into the catalyst tubes is restricted as much as possible in construction and flow engineering terms.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: April 21, 2009
    Assignee: MAN DWE GmbH
    Inventors: Friedrich Guetlhuber, Manfred Lehr
  • Patent number: 7484718
    Abstract: A mechanical draft cooling tower includes an air inlet and an air outlet. A liquid spray assembly is provided below the air outlet. A fill shell assembly is provided below the liquid spray assembly such that liquid can be sprayed onto the fill sheet assembly. An indirect heat exchange assembly is mounted beneath the fill sheet assembly. The indirect assembly usually comprises a series of coils through which a fluid to be cooled is circulated. A first air inlet is provided beneath the fill sheet assembly and includes a closing assembly. A second air inlet is provided beneath a top surface of the indirect assembly and includes a closing assembly.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: February 3, 2009
    Assignee: Baltimore Aircoil Company, Inc
    Inventors: Timothy P. Facius, Frank T. Morrison
  • Publication number: 20080164696
    Abstract: In a carburetor mounting structure, a stud bolt is implanted in a carburetor mounting portion, a screw hole is provided in the carburetor mounting portion, first and second mounting flanges include first bolt holes through which the stud bolt passes, and second bolt holes into which a tap bolt is screwed, and the first bolt hole of the first mounting flange is formed into a notched shape so as to allow the stud bolt to be inserted into the first bolt hole from an outside of the first mounting flange. Thus, it is possible to provide a carburetor mounting structure wherein mounting of a carburetor by a stud bolt is possible even if only a small space exists outward of an outer end of the stud bolt.
    Type: Application
    Filed: December 18, 2007
    Publication date: July 10, 2008
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shigeki EDAMATSU, Yasunori Matsubara
  • Patent number: 7152850
    Abstract: Hot water (12) in a bath (11) is pumped up by a suction pump (9) and introduced into a carbon dioxide gas dissolver (7) through solution flow rate adjusting means (14) and then, poured into the bath (11). Carbon dioxide gas supplied from a carbon dioxide gas cylinder (1) is introduced into the carbon dioxide gas dissolver (7) through gas flow rate adjusting means (5). At this time, the quantity of bubbles existing in artificial carbonated spring in a take-out pipe (15) is measured with a measuring device (13), and the solution flow rate adjusting means (14), gas flow rate adjusting means (5) and the like are controlled by means of a control device (16) using a relational expression between a preliminarily set quantity of bubbles and carbon dioxide concentration to obtain a desired concentration of carbon dioxide gas in carbonated spring.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: December 26, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroki Sakakibara, Ken Ooyachi, Hiroshi Tasaka
  • Patent number: 7114707
    Abstract: The water carbonation method and apparatus of the present invention consists of a square mixer within a carbonated chamber. The mixer is partially filled with water. Carbon dioxide is then added above the level of water. A rotating member attached to the mixing motor then mixes the water and carbon dioxide to from a carbonated solution. Varying the time for which the carbonation operation is carried on may vary the degree of carbonation. After the specified carbonation cycle, excess carbon dioxide is then relieved through an exhaust solenoid and the remaining carbonated solution is released through the dispensing solenoid into a cup.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: October 3, 2006
    Inventors: Gyorgy Rona, Janos Oscenas, Scott Nicol
  • Publication number: 20040036184
    Abstract: A carburetor is provided that supplies an appropriate amount of fuel at engine start-up and in a specific range of rotational speed, and allows stable engine operation at a target rotational speed. The carburetor comprises a first fuel system F1 for metering fuel from the constant fuel chamber 18 with a metering needle 32 linked to a throttle valve 5, and delivering the fuel to an air intake passage 2; and a second fuel system F2 for controlling fuel compressed by a fuel pump 8 with an electromagnetically driven control valve 52 and delivering the fuel to the air intake passage 2; by supplying pressured fuel controlled by the control valve 52 in a predetermined specific range of rotation and controlling the rotational speed during start-up and warm-up, a target rotational speed can be maintained.
    Type: Application
    Filed: May 30, 2003
    Publication date: February 26, 2004
    Applicant: Zama Japan
    Inventor: Takumi Nonaka
  • Patent number: 6375167
    Abstract: A sense-simile sampler delivers a sample fragrance in response to receiving an external signal, preferably via the internet. The sampler has a fragrance reservoir attached to a cylinder via a tube. A piston plunger reciprocates in the cylinder to expel the fragrance. A one-way valve controls flow of fragrance from the reservoir into the cylinder. The piston plunger is solenoid operated via signals from an internet appliance.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: April 23, 2002
    Assignee: Trisenx Holdings, INC
    Inventors: Ellwood G. Ivey, Greg Beard, Michael Horovitz
  • Patent number: 6325359
    Abstract: A gas solution producing device having a simple structure to reduce a start-up time, and capable of reducing an amount of gas or solution for use, and a method therefor, as well as a cleaning device employing them. An ozone water solution producing device of the present invention includes a gas dissolving module for bringing ozone gas and deionized water in contact with each other for production of ozone solution, a gas introducing pipe for introducing ozone gas from an ozone gas producing device to the gas dissolving module, a buffer, connected on the gas introducing pipe, for temporarily storing ozone gas and thereafter discharging the gas stored to the gas introducing pipe, a first valve for opening or closing the gas introducing pipe to switch introduction and suspension of gas flow to the gas dissolving module, and backflow prevention valve for preventing a backflow of the gas discharged from the buffer.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: December 4, 2001
    Assignee: Organo Corporation
    Inventors: Nobuaki Haga, Kenichi Mitsumori, Yasuhiko Kasama
  • Patent number: 4450821
    Abstract: A gaseous fuel delivery system for a gasoline engine having a gaseous fuel delivery valve means comprising an idle fuel delivery valve and an acceleration fuel delivery valve. Means responsive to air flow through the carburetor throat controls operation of the idle fuel delivery valve. Means responsive to intake manifold vacuum controls operation of the acceleration fuel delivery valve. Electrically operable alternately open idle and acceleration solenoid valves are interposed in separate delivery conduits from the idle and acceleration fuel delivery valves. Means responsive to the opening of the acceleration fuel delivery valve opens the acceleration solenoid valve and closes the idle solenoid valve, reversing the respective valve positions on closing of the acceleration fuel delivery valve. An idle switch responsive to idle position of the throttle prevents opening of the idle solenoid valve except when the throttle is in the idle position.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: May 29, 1984
    Assignee: VCD Fuel Systems
    Inventors: Scott Venning, Dennis Discount
  • Patent number: 4450822
    Abstract: A gaseous fuel delivery system for a gasoline engine having means for gaseous fuel delivery comprising idle fuel delivery means and acceleration fuel delivery means. Electrically operable means responsive to ported vacuum in the carburetor throat controls operation of the idle fuel delivery means. Electrically operable means responsive to intake manifold vacuum controls operation of the acceleration fuel delivery means. An idle switch responsive to idle position of the throttle prevents opening of the idle fuel delivery means except when the throttle is in the idle position.The engine carburetor is arranged such that no gasoline is delivered for idle operation. Idle needle valves are closed, or eliminated. Transition slots are sized to be operational only as the throttle moves from the idle position and supply no fuel when the throttle is at idle.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: May 29, 1984
    Inventor: Scott J. Venning
  • Patent number: 4438049
    Abstract: An automotive type carburetor is provided with an air bypass channel routing idle speed air flow around the closed throttle valve; the bypass channel containing a spring closed poppet valve having an adjustable volume internal channel connecting air to opposite sides of the valve at all times in a restrictive manner, the movement of the poppet valve and the volume of flow through the internal air flow channel being controlled by a solenoid operated plunger to progressively increase or decrease air flow from a minimum provided by the flow through the internal passage to a maximum provided by flow past the unseated poppet valve in addition to flow through the internal passage.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: March 20, 1984
    Assignee: Ford Motor Company
    Inventor: Edward A. Ammons
  • Patent number: 4181108
    Abstract: The system is comprised of an electromagnetically operated valve for controlling the supply of air to the main and idle ducts of each carburetor stage to vary the fuel-air mixture in response to a signal from an oxygen concentration probe disposed upstream of the catalytic converter in the exhaust system of an internal combustion engine. The device is mounted on the vehicle structure rather than the engine and is comprised of a rotary cam disposed in operative relation with the plurality of metering valves to control the air supply from a single conduit leading from the air filter to a plurality of conduits leading to the various carburetor ducts.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: January 1, 1980
    Assignee: Edoardo Weber - Fabbrica Italiana Carburatori S.p.A.
    Inventor: Francesco Bellicardi
  • Patent number: 4171689
    Abstract: A device for controlling the admission of additional gas, such as exhaust gas, to the induction tube of the engine so that additional gas quantities are admitted to the induction tube only during partial load operation. The device includes an additional gas quantity valve situated within the induction tube. The valve includes, in its various embodiments, structure to assure a high tolerance factor in the engagement of the valve seat and the movable valve member so that wear and temperature effects will not adversely affect the control of the additional gas quantity flow.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: October 23, 1979
    Assignee: Robert Bosch GmbH
    Inventor: Franz Eheim