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71 results about "Rev limiter" patented technology
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A rev limiter is a device fitted in modern vehicles that have internal combustion engines. They are intended to protect an engine by restricting its maximum rotational speed, measured in revolutions per minute (RPM). Rev limiters are pre-set by the engine manufacturer. There are also aftermarket units where a separate controller is installed using a custom RPM setting. A limiter prevents a vehicle's engine from being pushed beyond the manufacturer's limit known as the redline (literally the red line marked on the tachometer). At some point beyond the redline, engine damage will occur.
Barrier gate with torque limiter
ActiveUS7818920B2Avoiding costly repair and downtimePaving detailsTraffic restrictionsElectric machineryRev limiter
Owner:B&B ROADWAY & SECURITY SOLUTIONS LLC
Torque limiter
An adjustable torque limiter that can be coupled between a high speed driver and the socket that rotates a mechanical fastener. When a preset torque level is reached, the torque limiter disengages the rotational drive force from the bit. The adjustability of the torque limitation is accomplished by varying the amount of spring force by which a thrust plate (coupled to the high speed driver) is forced against a set of steel balls residing in slots of a radial torque plate and in a set of paths formed in a concavity of an upper torque body (coupled to the driven socket engaging stud). When a certain preset torque is transmitted from the driver to the socket, the steel balls traverse outward along the separate arced ramp radial paths therein the upper torque body until the balls enter an annular race that allows the thrust plate to go into a disengaged or free wheel mode from the upper torque body.
Owner:STARK MICHAEL CURT WALTER
Cosmetic Applicator with Torque Limiter
A cosmetic applicator includes a handle, a drive coupled to the handle, an applicator head coupled to the drive, and a torque limiter. The torque limiter includes a magnetic coupling, the magnetic coupling being coupled to at least one of the drive and the applicator head such that the torque applied via the applicator head does not exceed a predetermined allowable torque.
Owner:NOXELL CORP
Magnetic disk apparatus and its servo signal recording method
A magnetic disk apparatus includes an actuator for moving a head to a position above the magnetic disk in a servo track movement operation, a range limiter for limiting a movable range of the actuator, a range specifier for setting a specific range of the actuator in the movable range of the actuator, and a control unit. The control unit enables writing a servo signal into the specific range at servo track movement pitch based on servo tracks recorded with the servo signal, correcting the servo track movement pitch on the basis of the number of servo tracks in the specific range and executing control to write the servo signal at corrected servo track movement pitch.
Owner:HITACHI GLOBAL STORAGE TECH JAPAN LTD
Engine speed limiter for a hoist
InactiveUS7004456B2Lifting force can be limited and reducedForce can be limited and reducedDrilling rodsFluid removalRev limiterInternal combustion engine
A mobile service rig for wells includes a hoist powered by an internal combustion engine. In response to the hoist exerting a predetermined lifting force, the lifting force is limited by automatically limiting or reducing the speed of the engine.
Owner:KEY ENERGY SERVICES
Barrier gate with torque limiter
ActiveUS20090116903A1Costly repairCostly downtimePaving detailsTraffic restrictionsElectric machineryRev limiter
Disclosed is an apparatus for a barrier gate designed to control vehicular travel through a passageway. The invention disclosed employs a barrier arm, a housing, a motor and transmission, a rotary encoder, and a torque limiter assembly. The torque limiter assembly comprises a hub, spindle, brake disk, rotor, and a gland nut. The torque limiter assembly is mounted to the motor and transmission as well as connected to the barrier arm. The torque limiter assembly provides sufficient friction to rotate the barrier arm and also protects the internal gears and linkages of the transmission and motor from costly repair / replacement by preventing any unwanted rotation. In the event an outside force rotates the barrier arm, the rotary encoder in cooperation with a controller instantly recognizes the position of the barrier arm and further acts as a limit switch to send a signal to the motor to stop when the barrier arm is in place.
Owner:B&B ROADWAY & SECURITY SOLUTIONS LLC
Cordless motor assisted torque wrench
A cordless motor assisted torque wrench. In an example embodiment, the torque wrench includes an elongated housing adapted to enclose an elongated battery pack, a drive head pivotably connected to a first end of the elongated housing at a pivot connection, an electronic torque setting device operable to receive a desired torque setting from a user, a torque sensing device for sensing a level of torque applied by the wrench to a workpiece, a motor disposed within the head, and a torque limiter configured to limit the torque applied by the wrench to a workpiece based on the desired torque setting and the level of torque sensed by the torque sensing device. The elongated housing preferably includes a first segment and a second segment slidably coupled to form a telescopic elongated housing that is configurable into at least two lengths.
Owner:WISE ROBERT W
Power generating apparatus
InactiveUS20130278100A1Abnormal rotationPrevent rotationEngine fuctionsMachines/enginesDrive shaftRev limiter
A wind power generator includes: an input rotor provided so as to be rotatable together with an output shaft of a speed increaser; an output rotor provided so as to be rotatable together with a drive shaft of a generator; and a one-way clutch arranged between the input and output rotors. The one-way clutch connects the input rotor to the output rotor such that the input rotor and the output rotor are rotatable together with each other when a rotation speed of the input rotor exceeds a rotation speed of the output rotor, and that disconnects the input rotor from the output rotor when the rotation speed of the input rotor falls below the rotation speed of the output rotor. The one-way clutch has a rotation speed limiter that disconnects the input rotor from the output rotor when the rotation speed of the output shaft exceeds a predetermined value.
Owner:JTEKT CORP
Cosmetic Applicator with Torque Limiter
A cosmetic applicator includes a handle, a drive coupled to the handle, an applicator head coupled to the drive, and a torque limiter. The torque limiter includes a fluidic or viscous coupling, the fluidic or viscous coupling being coupled to at least one of the drive and the applicator head such that the torque applied via the applicator head does not exceed a predetermined allowable torque.
Owner:THE PROCTER & GAMBLE COMPANY
Power tool having torque limiter
Owner:MAKITA CORP
Control System in Vehicle
ActiveUS20120017871A1Prevent rotation speedEasy to controlElectrical controlMachines/enginesIn vehicleControl system
A control system for controlling a driving power source in a vehicle, includes a driving state detector for detecting a driving state of the vehicle; a first determiner for determining whether or not the driving state detected by the driving state detector is a first state; a second determiner for determining whether or not the driving state detected by the driving state detector is a second state; a rotational speed limiter for executing rotational speed limiting control for limiting a driving power source rotational speed to a predetermined upper limit value or less when the first determiner determines that the driving state is the first state, during an operation of the driving power source; and a rotational speed limiting termination unit for terminating the rotational speed limiting control, when the second determiner determines that the driving state is the second state, during the operation of the driving power source.
Owner:KAWASAKI MOTORS LTD
Stroke limiter for valve pin actuating mechanism
A valve pin actuating mechanism for an injection molding apparatus is provided. The injection molding apparatus includes at least one melt channel and a valve pin that is movable in the melt channel. The valve pin actuating mechanism includes an actuator, a linkage element and a stop. The linkage element has a mechanically upstream connector and a mechanically downstream connector. The linkage element is connected at least indirectly to the actuator at the mechanically upstream connector and is connected at least indirectly to the valve pin at the mechanically downstream connector. The linkage element is rotatable by actuation of the actuator. The stop is configured to engage a limit surface to limit the angle of rotation of the linkage element. The stop and the limit surface are configured to engage mechanically upstream from the downstream connector of the linkage element.
Owner:MOLD MASTERS 2007
Hand-held power tool with torque limiter
The invention relates to a hand tool machine with a torque limiter (2) enabling a user to set a maximum torque which is transmitted by a motor drive (4) to a tool carrier (6). According to the invention, the hand tool machine comprises an overload clutch which interrupts a power flux between the motor drive (4) and the tool carrier (6) when the transmitted torque exceeds the overload torque.
Owner:ROBERT BOSCH GMBH
Engine revolution limiter
InactiveUS20050092290A1Easy to controlImprove the level ofSpeed sensing governorsMachines/enginesRev limiterLimiter
An engine revolution limiter system is utilized to limit engine speed during a break-in period. The system provides for programming a variable break-in period and a variable selectable engine revolution limit. During the break-in period, if the revolution limit is exceeded by the engine speed, firing of the ignition is limited. In addition, the system provides for an over revolution limit wherein the ignition stops firing if the over revolution limit is exceeded. In addition, multiple break-in periods may be programmed with different associated revolution limits and over revolution limits. This provides for gradually increasing the allowable engine speed as the engine has been operating for greater periods of time.
Owner:S&S CYCLE INC
Articulating arm limiter for cavitational ultrasound therapy system
ActiveUS20160135916A1Reduce loadPrevent undesirable recoilingUltrasonic/sonic/infrasonic diagnosticsChiropractic devicesTransducerEngineering
Methods and devices for manipulating an articulating arm of an ultrasound therapy system are provided. In one embodiment an articulating arm comprises a first articulating arm link, a second articulating arm link, a rotating joint configured to rotationally connect the first articulating arm link to the second articulating arm link so that the first and second articulating arm links are substantially perpendicular, and an arm limiter attached to the second articulating arm link, the arm limiter being configured to limit rotation of the second articulating arm link along the rotating joint with respect to the first articulating arm link. An ultrasound therapy transducer and imaging system can be mounted on the articulating arm. Methods for performing manipulating the arm and system are also provided.
Owner:HISTOSONICS
Torque limiter
An adjustable torque limiter that can be coupled between a high speed driver and the socket that rotates a mechanical fastener. When a preset torque level is reached, the torque limiter disengages the rotational drive force from the bit. The adjustability of the torque limitation is accomplished by varying the amount of spring force by which a thrust plate (coupled to the high speed driver) is forced against a set of steel balls residing in slots of a radial torque plate and in a set of paths formed in a concavity of an upper torque body (coupled to the driven socket engaging stud). When a certain preset torque is transmitted from the driver to the socket, the steel balls traverse outward along the separate arced ramp radial paths therein the upper torque body until the balls enter an annular race that allows the thrust plate to go into a disengaged or free wheel mode from the upper torque body.
Owner:STARK MICHAEL CURT WALTER
Cooling apparatus having a variable speed compressor with speed limited on the basis of a sensed performance parameter
InactiveUS8136365B2Improve performanceRapid coolingDomestic cooling apparatusCompression machines with non-reversible cycleTemperature controlRotation velocity
A cooling apparatus such as a refrigerator includes a refrigeration cycle including a compressor driven by an electric motor, a condenser, a throttle valve and an evaporator, a first physical amount detector capable of detecting a physical quantity representing a temperature of an object to be cooled by the cooling operation of the evaporator, a temperature control device capable of controlling a rotating speed of the motor based on the physical quantity detected by the first physical quantity detector so that the object is cooled approximately to a target temperature, a second physical quantity detector capable of detecting a physical quantity corresponding to a performance margin of the refrigeration cycle, and a rotating speed limiter capable of limiting the rotating speed of the motor to or below a predetermined speed based on a physical quantity detected by the second physical quantity detector.
Owner:HOSHIZAKI ELECTRIC CO LTD
Wind energy installation with variable rotation speed characteristic
ActiveUS20110037262A1Reduce disadvantagesLosses can be further reducedWind motor controlEnergy storageLower limitMaximum torque
A wind energy installation including a wind rotor, a doubly-fed asynchronous generator driven by the wind rotor, a converter, and a controller configured to determine an operating torque for an operating rotation-speed, the operating torque not exceeding a maximum torque. The installation also includes a frequency-adaptive torque limiter having a classifier—for an overfrequency or underfrequency, a torque shifter configured to reduce the maximum torque in the event of frequency discrepancies, and an inhibitor configured to block the torque shift at an underfrequency. The installation further includes a frequency-dependent rotation-speed limiter configured to interact with the classifier such that a lower limit rotation-speed is increased only at an overfrequency and an upper limit rotation-speed is reduced only at an underfrequency. Accordingly, the operating torque can be adapted with respect to the permissible limit values rather than over the entire operating range, thus minimizing yield losses when frequency discrepancies occur.
Owner:SIEMENS GAMESA RENEWABLE ENERGY SERVICE GMBH
Disabling engine speed limiters during centrifugal clutch installation
InactiveUS7314430B2Simple and cost-effectiveMechanical actuated clutchesEngine controllersRev limiterOperation mode
Owner:ARVINMERITOR TECH
Torque limiter
The invention provides a torque limiter, capable of preventing upsizing towards the radial direction and ensuring an enough intensity relative to so-called counter torque. A gap and a convex portion at locking side are mounted on an outer wheel body. The gap is blocked into a hook portion with coil springs, having a butt surface at opening side and a butt surface at locking side which are respectively butted with the hook portion when acting on the rotation torque facing to the opening side and the locking side. The convex portion at locking side includes an extension surface at locking side which extends towards inner side in the radial direction from the butt surface at locking side, and butts with the hook portion together with the butt surface at locking side when acting on the rotation torque facing to the locking side.
Owner:SANCALL
Cordless motor assisted torque wrench
A cordless motor assisted torque wrench. In an example embodiment, the torque wrench includes an elongated housing adapted to enclose an elongated battery pack, a drive head pivotably connected to a first end of the elongated housing at a pivot connection, an electronic torque setting device operable to receive a desired torque setting from a user, a torque sensing device for sensing a level of torque applied by the wrench to a workpiece, a motor disposed within the head, and a torque limiter configured to limit the torque applied by the wrench to a workpiece based on the desired torque setting and the level of torque sensed by the torque sensing device. The elongated housing preferably includes a first segment and a second segment slidably coupled to form a telescopic elongated housing that is configurable into at least two lengths.
Owner:WISE ROBERT W
Cosmetic applicator with torque limiter
Owner:PROCTER & GAMBLE CO
Cosmetic applicator with torque limiter
A cosmetic applicator includes a handle, a drive coupled to the handle, an applicator head coupled to the drive, and a torque limiter. The torque limiter includes a magnetic coupling, the magnetic coupling being coupled to at least one of the drive and the applicator head such that the torque applied via the applicator head does not exceed a predetermined allowable torque.
Owner:NOXELL CORP
Coal mining machine and cutting part thereof
ActiveCN104453891AReduce downtime maintenance costsLow running costDriving meansRev limiterTorque limiter
The invention provides a coal mining machine and a cutting part thereof. The cutting part of the coal mining machine comprises a speed reduction transmission mechanism and a connection square head, wherein the speed reduction transmission mechanism is provided with a power output shaft; the connection square head is connected with a roller of the coal mining machine; the power output shaft is connected with the connection square head by a torque limiter; overload protection is carried out on the cutting part by the torque limiter so that the breakage possibility of a torque shaft can be reduced and the downtime caused by maintenance of the coal mining machine is shortened; and furthermore, the operation cost of the coal mining machine is reduced.
Owner:SANY HEAVY EQUIP
Torque limiter
ActiveCN102057174ABuild release functionFor quick replacementSlip couplingCouplings with disconnecting safety membersRev limiterMechanical engineering
An annular shear valve protecting member is arranged on an outer circumferential surface of a section extending in a circumferential direction of a cut portion of a shaft member, i.e., at a position outside the shear valve in the diameter direction and in the axis direction same as that of the shear valve. Maintenance or the like of a torque limiter, i.e., replacement of the shear valve or the like, is performed by changing the diameter of the shear valve protecting member by means of an operating section of the shear valve protecting member (7), and suitably switching the state as needed between an urgent state wherein relative movement to the outer circumferential surface of the section extending in the circumferential direction is not permitted, and an urgency-released state wherein movement in the circumferential direction to the outer circumferential surface of the section extending in the circumferential direction is permitted.
Owner:JTEKT CORP
Compactor turning speed limiter
Owner:CATERPILLAR PAVING PROD INC
Torque limiter
InactiveCN103967960AAvoid damagePrevent rotationSlip couplingCouplings with disconnecting safety membersTorque transmissionRev limiter
The invention provides a torque limiter. Each shear valve has a head having a generally T shape in a section taken along the radial direction of a shaft member and projected from a tubular member when the shear valve is fixed in a shear valve fitting hole. The shaft member has at least one generally T-shaped groove that has a shape corresponding to the shape of the head in the section and that accommodates the head during torque transmission.
Owner:JTEKT CORP
Engine revolution limiter
InactiveUS6964258B2Easy to controlImprove the level ofSpeed sensing governorsMachines/enginesRev limiterLimiter
An engine revolution limiter system is utilized to limit engine speed during a break-in period. The system provides for programming a variable break-in period and a variable selectable engine revolution limit. During the break-in period, if the revolution limit is exceeded by the engine speed, firing of the ignition is limited. In addition, the system provides for an over revolution limit wherein the ignition stops firing if the over revolution limit is exceeded. In addition, multiple break-in periods may be programmed with different associated revolution limits and over revolution limits. This provides for gradually increasing the allowable engine speed as the engine has been operating for greater periods of time.
Owner:S&S CYCLE INC
Electronic ignition module with rev limiting
InactiveUS8584651B1Efficient detectionSmooth mechanical ignition drive train jitterAnalogue computers for vehiclesMachines/enginesFlywheelInternal combustion engine
An ignition control module for an internal combustion engine is incorporated directly into an existing ignition module package design and thereby preserves stock appearance, and is cooperative with stock magnetos, distributors and coils. The module incorporates both ignition pulse generation and adjustable rev limiting. A pushbutton switch allows manual selection of a preferred RPM to rev limit to, and the selection may be carried out under the hood while the engine is running. A plurality of light emitting diodes display the selected rev limit RPM by flashing a corresponding LED, and when not being used to select rev limit RPM, display the engine RPM in bar graph format. A digital flywheel is provided to reduce adverse affect of mechanical jitter in distributor mechanical parts, to improve timing of individual sparks. Dwell and timing curves are programmed into a microprocessor, and may be changed through external input.
Owner:MARTINSON LAURA J +2
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