EP3369921B1 - Motordrehzahlregelsystem - Google Patents

Motordrehzahlregelsystem Download PDF

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Publication number
EP3369921B1
EP3369921B1 EP18158064.8A EP18158064A EP3369921B1 EP 3369921 B1 EP3369921 B1 EP 3369921B1 EP 18158064 A EP18158064 A EP 18158064A EP 3369921 B1 EP3369921 B1 EP 3369921B1
Authority
EP
European Patent Office
Prior art keywords
bellcrank
engine
control lever
arm
aperture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18158064.8A
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English (en)
French (fr)
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EP3369921A1 (de
Inventor
David Roth
Zach DLUGI
Aaron Halfmann
Kyle Clasen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Briggs and Stratton LLC
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Briggs and Stratton LLC
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Publication date
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Publication of EP3369921A1 publication Critical patent/EP3369921A1/de
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Publication of EP3369921B1 publication Critical patent/EP3369921B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/08—Other details of idling devices
    • F02M3/12—Passageway systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023—Valves in the fuel supply and return system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • F02P11/02—Preventing damage to engines or engine-driven gearing
    • F02P11/025—Shortening the ignition when the engine is stopped

Definitions

  • the present application relates generally to speed control for engines. More specifically, the present application relates to a speed control system arrangeable in a variable speed mode or a fixed speed mode, and that can be used with more than one remote actuation system.
  • One embodiment relates to an engine that includes a fuel tank, a carburetor including a throttle valve movable between a first throttle position and a second throttle position, a governor system configured to move the throttle valve, and a speed control system including a control lever defining a first actuation distance, and a bellcrank movable between an idle position and a high speed position and coupled to the governor system.
  • the bellcrank defines a second actuation distance that is different than the first actuation distance.
  • a speed control system for an engine includes a speed control lever and a bellcrank.
  • the speed control lever and the bellcrank include multiple connection points allowing the speed control system to be controlled manually in a manual control mode, or remotely in a remote control mode.
  • the connection points providing for remote operation can be arranged to operate with solid wire actuators or soft wire actuators.
  • the bellcrank is structured to operate with different actuation systems having different actuation travel distances. In one example, the bellcrank has connections providing for operation with a 15 millimeter or a 20 millimeter, or a 17.5 millimeter travel distance.
  • the speed control system can be arranged to operate in a variable speed mode with the position of the speed control lever affecting the operational speed of the engine, or a fixed speed mode where the bellcrank is fixed.
  • the speed control system can also include an ignition kill and a fuel shutoff that are actuated by the speed control lever. In some embodiments, actuation of the speed control lever, either manually or remotely, acts to affect the speed of the engine, the ignition kill, and the fuel shutoff.
  • an engine 30 includes a fuel tank 34, and a speed control system 38 that includes a carburetor 42, a speed control lever 46, a bellcrank 50 (not visible in FIG. 1 , see FIG. 4 ), a governor system 54, and a transport valve system 58.
  • the engine 30 may be used to power outdoor power equipment, portable jobsite equipment, or other equipment that requires a prime mover.
  • Outdoor power equipment may include lawn mowers, riding tractors, snow throwers, pressure washers, tillers, log splitters, zero-turn radius mowers, walk-behind mowers, riding mowers, stand-on mowers, pavement surface preparation devices, industrial vehicles such as forklifts, utility vehicles, commercial turf equipment such as blowers, vacuums, debris loaders, overseeders, power rakes, aerators, sod cutters, brush mowers, portable generators, etc.
  • Outdoor power equipment may, for example, use the engine 30 to drive an implement, such as a rotary blade of a lawn mower, a pump of a pressure washer, an auger of a snow thrower, and/or a drivetrain of the outdoor power equipment.
  • Portable jobsite equipment may include portable light towers, mobile industrial heaters, and portable light stands.
  • the carburetor 42 includes a throttle valve that is moveable between a first position in the form of a low speed position and a second position in the form of a high speed position and thereby control the air fuel mixture exiting the carburetor 42 and entering a combustion chamber of the engine 30, and a choke lever 62 arranged to adjust the position of a choke valve to control air flow into the carburetor 42.
  • the carburetor 42 is arranged to mix fuel from the fuel tank 34 with air and provide the mixture to the combustion chamber.
  • the choke lever 62 may be eliminated or arranged in a different position/location on the engine 30.
  • the engine 30 may be in the form of a small, single-cylinder, four-stroke cycle, internal combustion engine and includes an engine block, an air intake, and an exhaust. Interior to the engine 30, the engine 30 includes a passageway configured to channel air from the air intake to a combustion chamber. Along the passageway, fuel is mixed with the air in the carburetor 42 or other fuel injection device. Combustion in the combustion chamber converts chemical energy to mechanical energy (e.g., rotational motion, torque) via a piston, a connecting rod, and a crankshaft, which may then be coupled to one or more rotating tools (e.g., blade, alternator, auger, impeller, tines, drivetrain) of outdoor power equipment.
  • rotating tools e.g., blade, alternator, auger, impeller, tines, drivetrain
  • the crankshaft is a horizontal crankshaft arranged to provide power to an output shaft 66 (see FIG. 3 ) arranged to provide power to one or more implements.
  • the crankshaft is a vertical crankshaft.
  • the engine 30 includes two or more cylinders (e.g., two cylinders arranged in a V-twin configuration).
  • the bellcrank 50 is coupled to the carburetor 42 via the governor system 54, and the bellcrank 50 interacts with the governor system 54 to control the amount of fuel air mixture provided to the combustion chamber of the cylinder and thereby vary the operating speed of the engine 30.
  • the transport valve system 58 is arranged in the fuel flow path between the fuel tank 34 and the carburetor 42 and operates in response to the speed control lever 46 to selectively inhibit fuel flow from the fuel tank 34 to the carburetor 42.
  • the speed of the engine 30 can be controlled remotely from five different directions: a right lever direction A, a left lever direction B, a front bellcrank direction C, a back bellcrank direction D, and a left bellcrank direction E (see FIG. 3 ).
  • the five directions A-E define actuation directions that may be used by remote actuators to control the speed control system 38.
  • the right lever direction A can be used with a solid wire actuator in a push to high speed no load (HSNL) arrangement.
  • the left lever direction B can used with a solid wire actuator in a pull to HSNL arrangement.
  • the front bellcrank direction C can be used with a solid wire actuator or a soft wire actuator in a pull to HSNL arrangement.
  • the back bellcrank direction D can be used with a solid wire actuator in a push to HSNL arrangement.
  • the left bellcrank direction E can be used with a solid wire actuator or a soft wire actuator in a pull to HSNL arrangement.
  • the speed control lever 46 is rotatably mounted to a bracket 70 about a first axis 74 and the bellcrank 50 is rotatably mounted to the bracket about a second axis 78.
  • the speed control lever 46 is connected to the bellcrank 50 with a control link 82 so that rotation of the speed control lever 46 about the first axis 74 results in rotation of the bellcrank 50 about the second axis 78.
  • the governor system 54 includes a governor arm 86 coupled to the bellcrank 50 by a governor spring 90 and controlled by a governor or speed sensing device in response to the speed of the engine 30, and a governor link 94 that is coupled to the throttle valve of the carburetor 42 to control the fuel air mixture provided to the combustion chamber of the engine 30.
  • moving the speed control lever 46 causes the rotation of the bellcrank 50 and changes the tension in the governor spring 90 which affects the speed of the engine 30 by changing the force balance in governor system 54, which moves the throttle valve via the governor arm 86 and governor link 94.
  • movement of the speed control lever 46 only affects the position of the throttle valve if the engine 30 is running.
  • the governor system 54 may also include weights, a slider cup, a crank, springs, links, and other components, as desired.
  • the transport valve system 58 includes a transport valve that is actuatable so that a valve element is moveable between an open position and a closed position to selectively inhibit fuel flow to the carburetor 42.
  • the transport valve system 58 is controlled by the speed control lever 46.
  • a transport link 98 is connected between the speed control lever 46 and the transport valve system 58. When the speed control lever 46 is arranged in an off position (as shown in FIG. 4 ), the transport link 98 actuates the transport valve system 58 to a transport position where fuel is inhibited from flowing to the carburetor 42.
  • Embodiments of the transport valve system 58 are discussed in U.S. Provisional Patent Application No. 62/466,257 filed on March 2, 2017 and incorporated by reference herein in its entirety.
  • an electrical shutoff element in the form of a ground switch 102 is mounted on the bracket 70 and positioned to interact with the speed control lever 46.
  • the ground switch 102 grounds an ignition circuit of the engine 30 so that the engine 30 is inhibited from running. Further details and embodiments of the electrical shutoff element are discussed in U.S. Provisional Patent Application No. 62/466,257 .
  • the speed control lever 46 includes a handle 106, a control lever remote aperture 110 defined in the handle 106 and sized to receive a wire actuator, a mounting aperture 114 sized to mount the speed control lever 46 to the bracket 70 about the first axis 74, a control lever speed aperture 118 sized to receive the control link 82, a control lever transport aperture 122 sized to receive the transport link 98, and a speed control cam surface 126 sized to interact with the ground switch 102 and actuate the ground switch between an off position where operation of the engine 30 is inhibited and an on position where operation of the engine 30 is allowed.
  • the bellcrank 50 includes first arm 130, a second arm 134, a third arm 138, and a mounting aperture 142 sized to mount the bellcrank 50 to the bracket 70 about the second axis 78.
  • the first arm 130 includes a bellcrank control aperture 146 sized to receive the control link 82, and a spring aperture 150.
  • the second arm 134 includes a first soft wire aperture 154, a first short throw aperture 158, and a first long throw aperture 162.
  • the third arm 138 includes a second soft wire aperture 166, a second short throw aperture 170, a second long throw aperture 174, and a governor spring holder 178 sized to engage and retain the governor spring 90.
  • the governor spring holder 178 is an aperture, a compression nut, or another coupling structure. In some embodiments, more than two, or less than two throw apertures may be included on each of the second arm 134 and the third arm 138. In some embodiments, the first throw apertures 158, 162 or the second throw apertures 170, 174 may be eliminated. In some embodiments, one or both of the soft wire apertures 154, 166 may be eliminated. In some embodiments, the spring aperture 150 may be eliminated.
  • the control link 82 pushes on the first arm 130 of the bellcrank 50 so that the bellcrank is rotated about the second axis 78 in a clockwise direction.
  • the rotation of the bellcrank 50 results in the governor spring holder 178 pulling the governor spring 90 and increasing the tension applied to the governor arm 86.
  • the increased tension urges the governor system 54 to increase the speed of the engine 30.
  • the speed control cam surface 126 does not contact the ground switch 102, and the engine 30 is permitted to operate or run.
  • the transport link 98 actuates the transport valve system 58 such that fuel is provided from the fuel tank 34 to the carburetor 42.
  • the speed control system 38 can be arranged to work with a first solid wire actuator 182 connected to the control lever remote aperture 110.
  • the first solid wire actuator 182 is arranged to push the speed control lever 46 in the right lever direction A to the HSNL arrangement (shown in red).
  • the first solid wire actuator 182 is arranged to pull the speed control lever 46 into an off position (shown in blue).
  • the speed control system 38 can also be arranged to work with a second solid wire actuator 186 connected to the control lever remote aperture 110.
  • the second solid wire actuator 186 is arranged to pull the speed control lever 46 in the left lever direction B to the HSNL arrangement and to push the speed control lever 46 to the off position.
  • the speed control system 38 can also be arranged to work with a third solid wire actuator 190 connected to one of the first throw apertures 158, 162.
  • the third solid wire actuator 190 is arranged to pull the second arm 134 of the bellcrank 50 in the front bellcrank direction C to the HSNL arrangement and to push the second arm 134 of the bellcrank 50 in the back bellcrank direction D to the off position.
  • the speed control system 38 can also be arranged to work with a fourth solid wire actuator 194 connected to one of the second throw apertures 170, 174.
  • the fourth solid wire actuator 194 is arranged to pull the third arm 138 of the bellcrank 50 in the left bellcrank direction E to the HSNL arrangement and to push the third arm 138 of the bellcrank 50 to the off position.
  • the control link 82 connects the speed control lever 46 and the bellcrank 50 so that the movements of the speed control lever 46 and the bellcrank 50 are coordinated.
  • the coordinated action of the speed control lever 46 and the bellcrank 50 results in actuation of the ground switch 102 and the transport valve system 58 via the remote actuators 182, 186, 190, 194 in addition to speed control, so that the speed control system 38 can be actuated between the HSNL arrangement, a low speed no load (LSNL) arrangement (see FIG. 18 ), and the off position (i.e., an ignition and fuel shutoff position).
  • LSNL low speed no load
  • the control lever remote aperture 110 defines a first actuation distance 200 that is about 27.7 millimeters. In other embodiments, the first actuation distance can be more or less than 27.7 millimeters.
  • the first long throw aperture 162 defines a second actuation distance 204 that is less than the first actuation distance and can be about twenty millimeters (20 mm). In other embodiments, the second actuation distance can be more or less than 20 mm.
  • the first short throw aperture 158 defines a third actuation distance 208 that is less than the second actuation distance 204 and can be about fifteen millimeters (15 mm). In other embodiments, the first actuation distance can be more or less than 15 mm.
  • the second long throw aperture 174 is also arranged to define the second actuation distance 204
  • the second short throw aperture 170 is arranged to define the third actuation distance 208.
  • the first actuation distance 200, the second actuation distance 204, and the third actuation distance 208 in addition to the ability of the speed control system 38 to operate using five different directions A-E allows the speed control system 38 to be incorporated into a wide variety of systems.
  • the engine 30 may be installed as a retrofit into a system originally designed to operate with a different engine type or manufacturer.
  • the speed control system 38 can be arranged in a remote controlled speed and manually controlled ignition and fuel shutoff mode.
  • the control link 82 is removed so that the speed control lever 46 and the bellcrank 50 operate independently.
  • the speed control lever 46 is manipulated manually by a user between an on position and an off position.
  • the transport valve system 58 In the on position, the transport valve system 58 is actuated so that fuel is provided to the carburetor 42 and the speed control cam surface 126 does not engage the ground switch 102 so that the engine 30 can operate.
  • the transport valve system 58 In the off position, the transport valve system 58 is actuated so that fuel is inhibited from flowing to the carburetor 42 and the speed control cam surface 126 engages the ground switch 102 so that the engine 30 is inhibited from operating.
  • the first solid wire actuator 182 or the second solid wire actuator 186 may be installed and control the speed control lever 46.
  • a return spring 212 is attached between the spring aperture 150 on the first arm 130 and bracket 70 so that the bellcrank 50 is biased toward the idle position (shown in blue).
  • the bellcrank 50 can be connected to either of the third solid wire actuator 190 or the fourth solid wire actuator 194 as discussed above to control engine speed.
  • a soft wire holder 216 can be connected to either the first soft wire aperture 154 or the second soft wire aperture 166.
  • the bellcrank 50 can be actuated by a first soft wire actuator 220 connected to the soft wire holder 216 installed in the first soft wire aperture 154.
  • the first soft wire actuator 220 can pull the second arm 134 of the bellcrank 50 in the front bellcrank direction C to achieve the HSNL arrangement.
  • the bellcrank 50 can also be actuated by a second soft wire actuator 224 connected to the sot wire holder 216 installed in the second soft wire aperture 166.
  • the second soft wire actuator 224 can pull the third arm 138 of the bellcrank 50 in the left bellcrank direction E to achieve the HSNL arrangement.
  • the return spring 212 moves the bellcrank 50 back into the idle position.
  • the first soft wire aperture 154 and the second soft wire aperture 166 define a fourth actuation distance 226 that is less than the second actuation distance 204 and larger than the third actuation distance 208.
  • the fourth actuation distance is about 17.5 millimeters. In other embodiments, the fourth actuation distance can be more or less than 17.5 millimeters.
  • the speed control system 38 can be arranged in a fixed speed control arrangement.
  • a securing element or fastener in the form of shoulder screw 228 is secured through the first soft wire aperture 154 and into the bracket 70 so that the bellcrank 50 is fixed in place relative to the bracket 70.
  • the control link 82 is removed so that the speed control lever 46 can be manipulated either manually or with the first or second solid wire actuators 182, 186 to provide ignition and fuel shutoff.
  • FIGS. 11-21 show another speed control system 232 that is similar to the speed control system 38 discussed above.
  • a loose kit 236 can be provided with the engine 30 and includes the shoulder screw 228; the return spring 212; the soft wire holder 216 including a clip 240, a retainer nut 244, and a screw 248; a casing clamp 252 and a screw 256 for securing actuators; and a mounting bracket 260 that can be used to mount the first solid wire actuator 182.
  • the engine 30 provides a number of access points for adjusting the speed control system 38.
  • a high speed tang bender 264 can be used to adjust the governor spring holder 178.
  • a wrench 268 can be used to adjust the speed control lever 46 as shown at 272 or to install a remote actuator at 276.
  • a driver 280 can be used to install an actuator or install/adjust the soft wire holder 216.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Claims (15)

  1. Brennkraftmaschine (30), umfassend:
    einen Kraftstofftank (34);
    einen Vergaser (42), der eine Drosselklappe aufweist, die zwischen einer ersten Drosselstellung und einer zweiten Drosselstellung bewegbar ist;
    ein Regelsystem (54), das zum Bewegen der Drosselklappe konfiguriert ist; und
    ein Drehzahlsteuersystem (38), aufweisend:
    einen Steuerhebel (46), der zwischen einer ersten Stellung und einer zweiten Stellung bewegbar ist und eine Steuerhebel-Fernzugriffsöffnung (110) in einem Griff (106) des Steuerhebels (46) definiert, welche eine erste Betätigungsstrecke (200) definiert, und einen Umlenkhebel (50), der zwischen einer Leerlaufstellung und einer Hochdrehzahlstellung bewegbar ist und einen ersten Arm (130), einen zweiten Arm (134) und einen dritten Arm (138) definiert, wobei eine erste Langflächenöffnung (162) oder eine zweite Langflächenöffnung (174) des zweiten Arms (134) eine zweite Betätigungsstrecke (204) definiert, die von der ersten Betätigungsstrecke unterschiedlich ist, wobei der Umlenkhebel mit dem Regelsystem (54) verbunden ist,
    wobei das Drehzahlsteuersystem (38) derart aufgebaut ist, dass es durch ein Fernbetätigungselement (182, 186, 190, 194) gesteuert wird, das dafür konfiguriert ist, mit einem von der Steuerhebel-Fernzugriffsöffnung (110), dem zweiten Arm (134) oder dem dritten Arm (134) in Eingriff zu gehen, um den Steuerhebel (46) und den Umlenkhebel (50) zu bewegen, und
    wobei die Brennkraftmaschine (30) derart aufgebaut ist, dass sie das Fernbetätigungselement trägt, um eine Steuerung bereitzustellen aus einer rechten Hebelrichtung (A), wenn das Fernbetätigungselement mit der Steuerhebel-Fernzugriffsöffnung (110) in Eingriff steht, einer zu der rechten Hebelrichtung entgegengesetzten linken Hebelrichtung (B), wenn das Fernbetätigungselement mit der Steuerhebel-Fernzugriffsöffnung (110) in Eingriff steht, einer vorwärtigen Umlenkhebelrichtung (C), wenn das Fernbetätigungselement mit dem zweiten Arm (134) in Eingriff steht, einer zu der vorwärtigen Umlenkhebelrichtung entgegengesetzten rückwärtigen Umlenkhebelrichtung (D), wenn das Fernbetätigungselement mit dem zweiten Arm (134) in Eingriff steht, und einer von der vorwärtigen Umlenkhebelrichtung und der rückwärtigen Umlenkhebelrichtung unterschiedlichen linken Umlenkhebelrichtung (E), wenn das Fernbetätigungselement mit dem dritten Arm (138) in Eingriff steht.
  2. Brennkraftmaschine nach Anspruch 1, wobei die erste Betätigungsstrecke ungefähr 27,7 Millimeter beträgt und die zweite Betätigungsstrecke ausgewählt ist aus einem von 15 Millimetern, 17,5 Millimetern und 20 Millimetern.
  3. Brennkraftmaschine nach Anspruch 1 oder nach Anspruch 2, wobei die Steuerhebel-Fernzugriffsöffnung (110) zum Aufnehmen eines Volldraht-Betätigungselements (182) des Fernbetätigungselements bemessen ist.
  4. Brennkraftmaschine nach Anspruch 1 oder nach Anspruch 2 oder nach Anspruch 3, wobei der zweite Arm (134) eine Öffnung (154, 158, 162) aufweist, die für den Eingriff mit einem von einem Volldraht-Betätigungselement (190) und einem Weichdraht-Betätigungselement (220) konfiguriert ist.
  5. Brennkraftmaschine nach Anspruch 1 oder einem der Ansprüche 2 bis 4, wobei der Umlenkhebel (50) mit dem Steuerhebel (46) über eine Steuerverbindung (82) derart verbunden ist, dass ein Bewegen des Steuerhebels zwischen der ersten Stellung und der zweiten Stellung den Umlenkhebel (50) zwischen der Leerlaufstellung und der Hochdrehzahlstellung bewegt.
  6. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 5, wobei der Steuerhebel (46) und der Umlenkhebel (50) mit einer Klammer (70) verbunden sind und wobei der Umlenkhebel wahlweise oder vorzugsweise derart an der Klammer befestigt sein kann, dass der Umlenkhebel an einem Bewegen in Bezug auf die Klammer gehindert wird.
  7. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 6, ferner umfassend ein elektrisches Abschaltelement (102), das zum Betätigen durch den Steuerhebel positioniert ist,
  8. Brennkraftmaschine nach Anspruch 7, wobei:
    (i) das elektrische Abschaltelement einen Masseschalter für die Zündung aufweist; und/oder
    (ii) der Steuerhebel an der Brennkraftmaschine an die Masse angeschlossen ist, und
    wobei das elektrische Abschaltelement ein Masseleiter (102) für die Zündung ist, der zum Anschließen einer Zündschaltung an die Masse bei Kontakt mit dem Steuerhebel konfiguriert ist.
  9. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 8, ferner umfassend ein Transportventil (58) in Fluidverbindung zwischen dem Kraftstofftank (34) und dem Vergaser (42), wobei das Transportventil ein Ventilelement aufweist, das bewegbar ist zwischen einer geöffneten Ventilstellung, die einen Kraftstoffdurchfluss zwischen dem Kraftstofftank und dem Vergaser gestattet, und einer geschlossenen Ventilstellung, die einen Kraftstoffdurchfluss zwischen dem Kraftstofftank und dem Vergaser verhindert,
    wobei das Ventilelement als Reaktion auf den Steuerhebel (46) bewegbar ist.
  10. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 9, wobei der Steuerhebel und der Umlenkhebel (50) unabhängig arbeiten, sodass der Umlenkhebel die Drehzahl der Brennkraftmaschine beeinflusst und der Steuerhebel (46) eine Not-Aus-Schaltung für die Zündung und einen Kraftstoffabsperrhahn steuert.
  11. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 10, wobei das Drehzahlsteuersystem (38) in einem Fernsteuermodus, einem manuellen Steuermodus oder einem Modus mit fester Drehzahl angeordnet sein kann.
  12. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 9 und 11, wobei:
    (i) das Drehzahlsteuersystem eine Steuerverbindung (82) aufweist, die den Steuerhebel mit dem Umlenkhebel verbindet; und/oder
    (ii) eine Stellung des Steuerhebels durch den Umlenkhebel gesteuert wird.
  13. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 12, wobei:
    (i) der Steuerhebel (46) zwischen einer Hochdrehzahlstellung, einer Niederdrehzahlstellung und einer ausgeschalteten Stellung bewegbar ist; und/oder
    (ii) der Steuerhebel (46) eine Not-Aus-Schaltung für die Zündung, einen Kraftstoffabsperrhahn steuert und die Drehzahl der Brennkraftmaschine beeinflusst.
  14. Brennkraftmaschine nach Anspruch 1 oder nach einem der Ansprüche 2 bis 14, wobei eine zweite Kurzflächenöffnung (170) des dritten Arms (134) ferner eine dritte Betätigungsstrecke (208) definiert, die kleiner als die zweite Betätigungsstrecke ist; und wobei wahlweise oder vorzugsweise die zweite Betätigungsstrecke ungefähr zwanzig Millimeter beträgt und die dritte Betätigungsstrecke ungefähr fünfzehn Millimeter beträgt.
  15. Brennkraftmaschine nach Anspruch 14, wobei der Umlenkhebel ferner eine vierte Betätigungsstrecke definiert, die ungefähr 17,5 Millimeter beträgt.
EP18158064.8A 2017-03-02 2018-02-22 Motordrehzahlregelsystem Active EP3369921B1 (de)

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CN113982764B (zh) * 2021-11-10 2023-09-08 中国煤炭科工集团太原研究院有限公司 一种电控防爆发动机气电双控高温熄火保护装置

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674170C (de) * 1935-08-24 1939-04-06 Zenith Carburateurs Soc Gen Einrichtung bei Vergasern fuer Brennkraftmaschinen mit Biegehautbrennstoffdruckregler
DE1476148A1 (de) * 1964-09-21 1969-03-13 Arpaia Michael Albert Vorrichtung und Verfahren fuer die Bildung eines Brennstoff-Luftgemisches fuer Verbrennungsmotoren
US3844311A (en) * 1972-11-10 1974-10-29 H Mcswain Valve control apparatus
CA1043202A (en) * 1974-12-19 1978-11-28 Harold Phelps Carburetor and fuel supply system
JPS56154145A (en) * 1980-04-30 1981-11-28 Suzuki Motor Co Ltd Intake fuel-air mixture control device for engine
DE19549113C1 (de) * 1995-12-29 1997-07-31 Wacker Werke Kg Gasbetätigungsvorrichtung für zum Anbau an Bodenverdichtungsgeräte bestimmte Verbrennungsmotoren mit Membranvergaser
US6213083B1 (en) * 1997-01-08 2001-04-10 Briggs & Stratton Corporation Fuel shutoff system
US6082323A (en) * 1997-01-08 2000-07-04 Briggs & Stratton Corporation Fuel shutoff system
DE19722319B4 (de) * 1997-05-28 2008-12-11 Andreas Stihl Ag & Co. Vergaser für eine Brennkraftmaschine
JPH1182885A (ja) * 1997-09-12 1999-03-26 Tlv Co Ltd フロ―ト式ドレントラップ
SE515433C2 (sv) * 1999-12-01 2001-08-06 Svedala Compaction Equipment A Enspaksmanövrerad vibratorstamp för säker hantering av stampen vid användning och transport samt förfarande vid en sådan vibratorstamp
JP2001200735A (ja) * 2000-01-18 2001-07-27 Honda Motor Co Ltd 作業機のスロットル調整装置
US6640770B2 (en) * 2001-10-04 2003-11-04 Walbro Corporation Evaporative emission control apparatus for a combustion engine
JP4119327B2 (ja) * 2003-08-04 2008-07-16 本田技研工業株式会社 エンジンの燃料供給制御装置
US7152580B2 (en) * 2004-12-16 2006-12-26 Tecumseh Products Company Engine speed control with high speed override mechanism
US7263981B2 (en) * 2005-05-23 2007-09-04 Walbro Engine Management, L.L.C. Controlling evaporative emissions in a fuel system
WO2007043916A1 (en) * 2005-10-07 2007-04-19 Husqvarna Ab Carburettor choke mechanism
US20080302332A1 (en) * 2007-06-05 2008-12-11 Walbro Engine Management, L.L.C. Split-bore stratified charge carburetor
US8408183B2 (en) * 2008-04-22 2013-04-02 Briggs & Stratton Corporation Ignition and fuel shutoff for engine
CN101886593A (zh) * 2010-07-14 2010-11-17 苏州市双马机电有限公司 数码便携式发电机快速起动油路系统
US8690075B2 (en) * 2011-11-07 2014-04-08 Caterpillar Inc. Fuel injector with needle control system that includes F, A, Z and E orifices
US9074535B1 (en) * 2013-12-19 2015-07-07 Kohler Co. Integrated engine control apparatus and method of operating same
CN204627816U (zh) * 2015-05-26 2015-09-09 苏小娅 一种输油泵

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CN108533420B (zh) 2021-03-09
CN108533420A (zh) 2018-09-14
EP3369920A1 (de) 2018-09-05
CN108533421A (zh) 2018-09-14
CN108533421B (zh) 2021-08-31
EP3369920B1 (de) 2021-09-22

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