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1400 results about "Swash" patented technology
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Swash, or forewash in geography, is a turbulent layer of water that washes up on the beach after an incoming wave has broken. The swash action can move beach materials up and down the beach, which results in the cross-shore sediment exchange. The time-scale of swash motion varies from seconds to minutes depending on the type of beach (see Figure 1 for beach types). Greater swash generally occurs on flatter beaches.
Depth control device for an underwater cable
InactiveUS6016286AImprove impact resistanceEasy to assembleTowing/pushing equipmentLiquid surface applicatorsDrive shaftControl theory
A depth control device for an underwater cable includes a rotary actuator having a rotating output shaft connected to a swash plate. Rotation of the swash plate by the actuator causes a rocker arm to pivot about an axis transverse to the axis of the output shaft. The rocker arm is drivingly connected to a drive shaft for rotating wings about their pitch axes. The pitch axes of the wings can be perpendicular to and intersecting the axis of the actuator output shaft, enabling the depth control device to be extremely compact.
Owner:DIGICOURSE
Blade pitch locking device for a main rotor of a rotary-wing aircraft
InactiveUS6032899AThe process is simple and effectiveLow costPropellersPump componentsTail rotorRotary wing
The present invention relates to a device for locking the pitch of the blades of a main rotor of a rotary-wing aircraft in which each blade is firstly rotated about an axis of rotation of the rotor by a rotor mast and is secondly constrained to pivot about a longitudinal pitch axis of the blade together with a pitch lever which is controlled by a pitch link connected to a rotary plate rotating with the rotor mast and belonging to a cyclic swash plate mechanism in which the rotary plate is rotatably mounted on a non-rotary plate capable of sliding axially along said rotor mast and of tilting in any direction relative to the rotor mast under the drive of at least three servo-controls each comprising a body fixed on a support secured to the aircraft and a rod having a free end secured to the non-rotary plate. The device includes immobilization means for holding the rod of each of the servo-controls relative to the corresponding body so as to lock the blades in a predetermined pitch position.
Owner:EUROCOPTER
Swash plate of swash-plate compressor
InactiveUS6123009AReduce coating thicknessReduce loadPositive displacement pump componentsAdditivesGas compressorGraphite
A swash plate of a swash-plate compressor is subjected to sliding on shoes and is required to have excellent seizure resistance and wear resistance under the dry lubricating condition. The swash plate according to the present invention is provided with the surface-treated layer, i,e., the intermediate layer consisting of Cu, Sn or metal phosphate, and a sliding contact layer consisting of MoS2 and / or graphite and thermosetting resin.
Owner:TAIHO INDUSTRIES CO LTD +1
Hydraulic steering transaxle and hydraulic driving vehicle
A steering transaxle comprises: left and right drive shafts drivingly connected to respective steerable wheels; a differential gear unit differentially connecting the drive shafts to each other; a transaxle casing having an opening, the transaxle casing incorporating the differential gear unit and the drive shafts; a cover for covering the opening of the transaxle casing; a variable hydraulic motor having a movable swash plate, the hydraulic motor being provided on the inside of the cover; a motor control mechanism for controlling the movable swash plate, the motor control mechanism being provided on the outside of the cover; and a hydraulic oil port for oil supply and delivery to and from the hydraulic motor, the hydraulic oil port being provided on the outside of the cover. The cover, the hydraulic motor with the movable swash plate, the motor control mechanism and the hydraulic oil port constitute an assembly unit, which is detachably attached to the transaxle casing so that, by covering the opening with the cover, the hydraulic motor is disposed in the transaxle casing so as to be drivingly connected to the differential gear unit.
Owner:KANZAKI KOKYUKOKI MFG
Hammer drill with a mechanism for preventing inadvertent hammer blows
InactiveUS6971455B2Reliably prevents inadvertent blows to the bitImprove reliabilityReciprocating drilling machinesPortable percussive toolsCoil springEngineering
A hammer drill (1) includes a lock plate (35) forward of a boss sleeve (13) and a swash bearing (14) which cooperates with the boss sleeve to convert the rotation of an intermediate shaft (5) on which the boss sleeve is mounted. The lock plate is mounted on the boss sleeve and selectively engages claws (23) of the boss sleeve (13) in a manner that permits its integral rotation with and axial slide with respect to the boss sleeve. The lock plate is additionally biased in the forward direction by a coil spring (38) so that when a clutch (19) is shifted forward in a drill mode, the lock plate also moves forward into engagement with a stopper (39) secured to an inner housing (4), preventing inadvertent rotation of the boss sleeve.
Owner:MAKITA CORP
Combined axial piston liquid pump and energy recovery pressure exchanger
InactiveUS7799221B1Improve welfareMinimize the numberMembranesGeneral water supply conservationReciprocating motionEnergy recovery
A pumping machine, that can serve a system as the sole main pump for pressurizing a primary liquid flow, incorporates, in a single machine, a rotor-drum type AP (axial piston) pump and a PX (pressure exchanger) that recovers energy from a secondary liquid flow such as the brine discharge from an RO seawater desalination system, with benefits including fewer moving parts and small machine size along with lower capital and operating costs. A single rotor-drum containing the cylinders and pistons is located between two end blocks, one or both configured with manifold passageways, ports and sliding valves. A swash-plate at one end reciprocates the pistons axially when the rotor-drum is rotated. Two working chambers, primary and secondary, are formed at opposite ends of a single piston in each cylinder, thus enabling the single rotor-drum to function as a primary liquid-pressurizing axial pump (AP) with sliding valves at the primary end enabling primary liquid pumping, and as a secondary outflow-driven pressure exchanger (PX) recovering energy from pressure drop in the secondary liquid flow and thus contributing work to primary pumping, saving energy and reducing operating costs.
Owner:OCEAN PACIFIC TECH
Device for adjustment of level of inclination of back part of motor vehicle seat
The present invention relates to a device for adjustment of level of inclination of back part of a motor vehicle seat having a device part (2) affixed to the seat part and a device part (3) affixed to the back part, which can be pivoted counter to each other about a pivot axis (14), wherein both device parts (2, 3) have parts of gearings (4, 5) forming a swash mechanism, which roll on each other under the action of eccentric elements (11) that can be rotated about a pivot axis (14). The eccentric elements (11) are comprised of an eccentric ring (12), on which two regionally covering mirroring wedge segments (13) lie These are urged away from each other in the sense of an increase in eccentricity (e) by spring elements (15) arranged one of their front surfaces (13.3). The object of the invention is to provide a device for adjustment of the level of inclination, wherein the space between the fronts of the wedge segments loaded by the spring elements is free of support elements in order to facilitate the incorporation of the spring elements. This object is achieved in that the support of the wedge segment (13) is on its other surface (13.4), in that there radial stop surfaces (31.1) are provided on the wedge segments (13) and radial stop surfaces (30.1) are provided on the eccentric ring (12), whereby the stop surfaces (31.1, 30.1) each are formed on projections (31. 30) of the wedge segment (13) or of the eccentric ring (12).
Owner:FAURECIA AUTOSITZE
Swash Plate Anti-Torque Mechanism
InactiveUS20080253891A1Facilitates optimal placementReduce tangential loadPropellersPump componentsDegrees of freedomSwashplate
An anti-torque mechanism which permits a full range of swashplate assembly motion. The anti-torque mechanism generally includes an anti-torque shaft and a compound bearing mounted thereto to provide five-degrees-of-freedom (spherical-linear-elastomeric) so as to permit a swashplate attachment point to move axially in response to pitch input; pivot in response to swashplate tilt; and move in / out in the radial direction.
Owner:SIKORSKY AIRCRAFT CORP
Single-piston type hydraulic free piston engine
InactiveCN101363397AReduce axial sizeSolve unfavorable situations such as economic deterioration and emission deteriorationReciprocating piston enginesFree-piston engineEnergy transfer
The invention discloses a single-piston type hydraulic free piston engine; in the invention, a traditional reciprocating piston internal combustion engine and a plunger-typed hydraulic pump are integrated into a whole, a pump piston and two compression pistons are simultaneously and directly connected with a power piston in a rigid manner to form a piston component, therefore, a crank link mechanism which can transform the reciprocating movement of the pistons into rotary motion in the internal combustion engine, and a swash plate mechanism which can transform the rotary motion of the pistons into reciprocating movement in a plunger pump can be omitted, and the piston of the internal combustion engine is directly connected with the plunger of the hydraulic pump in a rigid manner. By adopting the technical proposal of the invention, a driving chain can be shortened, the repeated transformation between different movement forms can be omitted, the energy transfer form between an engine and a drive system can be optimized, and the soft readjustment of a power drive unit can be realized.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Electromechanical device damping equipment used for building
InactiveCN107795634AWith shock absorption abilityImprove shock absorptionNon-rotating vibration suppressionMechanical equipmentEngineering
The invention discloses a shock absorbing device for electromechanical equipment used in buildings, which comprises a mounting seat, an installation groove is opened on the top of the mounting seat, a shock absorbing plate is sleeved in the mounting groove, and the upper surface of the shock absorbing plate is fixedly connected by a mounting block For electromechanical equipment, the bottom of the electromechanical equipment is located above the mounting base. Both sides of the bottom of the inner wall of the installation groove are provided with chute. The two sides of the inner wall of the chute are connected by sliding rods. There is a slide block, a shock absorbing spring is sleeved on the slide bar, and the two ends of the shock absorbing spring are respectively fixedly connected with one side of the inner wall of the chute and one side of the slide block. In the present invention, through the improvement of the shock-absorbing plate, when the electromechanical equipment is working, the vibration generated by it can make the shock-absorbing plate vibrate in the installation groove, so that the slide bar that the slide block can be inserted into the slide groove can be pushed through the slant plate Sliding upward, at this moment, can extrude the damping spring, for this reason, can make the electromechanical equipment installed on the top of the damping plate have a certain damping capacity.
Owner:江苏丰禾食品有限公司
Low power loss electro hydraulic actuator
InactiveUS6209825B1High currentHigh power lossAircraft stabilisationWithout power ampliicationElectricityMotor drive
The system includes a hydraulic surface actuator for operating a piston coupled to a structural member of an aircraft for moving the structural member. An electrical feedback sensor is coupled to the actuator piston rod. A summing circuit for receiving a command signal and the feedback signal is provided having an output which is coupled to a loop gain compensator for operating a servo motor. The shaft of the servo motor drives the shaft of a variable displacement pump having ports leading to the ports of the actuator. The variable displacement pump has a swash plate the angle of which is reduced by a hinge moment sensor and a de-stroking actuator when the load on the surface actuator exceeds a given percentage of maximum. A pump gain sensor measures the reduction in pump gain and produces an electrical output which is applied to the loop gain compensator to compensate for reduction in pump gain.
Owner:LOCKHEED MARTIN CORP
Load control structure for work vehicle
A load control structure for a work vehicle comprises: a device for detecting operating position of a manually operated speed change operating element; an engine load detection device for detecting load on an engine of the work vehicle; a swash plate position detecting device for detecting an operating position of a swash plate of a variable displacement pump of a hydrostatic continuously variable speed change device; a pump operating device for steplessly operating the swash plate of the variable displacement pump; a motor operating device for operating a swash plate of a variable displacement motor of the hydrostatic continuously variable speed change device between at least two speed change positions including a higher speed position and a lower speed position; a control device for controlling the operations of the pump operating device and the motor operating device. The control device has a automatic pump swash plate control device for controlling the operation of the pump operating device, based on detected information from the load detection device and detected information from the swash plate position detecting device, such that the greater an engine load is, greater is the extent to which the swash plate of the variable displacement pump is operated to a low speed side; and a motor swash plate control device for controlling the motor operating device so as to change the position of the swash plate of the variable displacement motor between the at least two speed change positions.
Owner:KUBOTA LTD
Self-lubricating wear-resistant coating swash plate and technique for producing the same
ActiveCN101503995AMeet the development requirements of lead-freeSimple production processLiquid surface applicatorsPositive displacement pump componentsWear resistantMolecular materials
The invention relates to a self-lubricating wear-resistant coating swash plate, which consists of a metallic matrix and a self-lubricating wear-resistant coating, wherein annular planes on two sides of the metallic matrix are coated with the self-lubricating wear-resistant coating, and the components of the self-lubricating wear-resistant coating comprise a main material of high molecular materials, fluoroplastics, solid lubricants and inorganic matters. A process for producing the self-lubricating wear-resistant coating swash plate comprises that: the self-lubricating wear-resistant coating is coated on the swash plate after being prepared into a liquid coating, and a method for preparing the liquid coating comprises the steps of using a solvent of N-methyl pyrrolidone or dimethyl acetamide to dissolve the main material of the high molecular materials first, and then adding the fluoroplastics, the solid lubricants and the inorganic matters into the mixture to perform sufficient stirring and dispersion so as to prepare the liquid coating with certain solid content. The swash plate has the advantages of good self-lubricating and wear-resistant performance, simple production process and low production cost, and does not contain metallic lead which is harmful to human bodies and the environment.
Owner:ZHEJIANG CHANGSHENG SLIDING BEARINGS
Portable wave-swash & coastal-wind energy harvester
In accordance with the present invention, a portable wave-swash & coastal-wind energy harvester, placed on a sea coast in swash zone captures energy contained in coastal waves and in coastal-wind through the utilization of wave turbines, wind turbines, and wave floats. Wave-float levers carrying wave floats and wave turbines, swing and maintain lower halves of wave turbines below water always. A gear system with one-way clutches transmits torque to an alternator to generate electricity. Flywheels maintain steady rotation of alternator shaft. A buoyancy chamber at the bottom produces reduction of weight of the unit when buoyancy chamber is emptied of water, and thereby enhances maneuverability of unit in water. Stabilization tanks at the top when filled with water provide extra weight and stability of the unit in its operating location. Units linked together in an energy farm combine their energy while forming a seawall-like barrier offering protection against coastal erosion.
Owner:JOSEPH ERAT S
Safety child chair
The child safety seat is configured with a support seat and an inclined seat base; the support seat is installed on the vehicle seat and has a base plate part and an upright part; the inclined seat base is slidably arranged on the support seat along a straight line. A freely rotatable seat main body with a backrest is arranged on the base of the inclined chair. When the base of the inclined chair slides on the support seat, it is slowly and slowly tilted.
Owner:COMBI CORP
Cutting device for root-shaped Chinese herbal medicine
PendingCN107160449AImprove cutting effectAffect fixed effectsDrying gas arrangementsMetal working apparatusMedicinal herbsAdditive ingredient
The invention discloses a cutting device for root-shaped traditional Chinese medicine, which comprises a push plate, a second rubber pad, a first rubber pad, a conveying device and a fan. The friction force between one end prevents one end of the medicinal material from sliding on the push plate, which affects the fixing effect of the medicinal material. At the same time, it protects the medicinal material and improves the practicability of the equipment. The second rubber pad further improves the The effect of fixing the medicinal materials is to save manpower by setting the conveying device to transport the cut medicinal materials to the top of the receiving funnel. After the medicinal materials fall into the receiving funnel, they further enter the air-drying box, and the fan is used to fan the air and pass through the inclined plate A number of through holes opened on the slant plate are used to preliminarily air-dry the medicinal materials on the inclined plate, thereby facilitating the subsequent processing and preservation of the medicinal materials, and improving the practicability of the equipment.
Owner:湖南丹尼尔智能科技有限公司
Device for adjustment of level of inclination of back part of motor vehicle seat
InactiveUS7390061B2Eliminate needIncreases safety and reliabilityFurniture partsMovable seatsGear wheelEngineering
A device for adjustment of the level of inclination of the back part of a motor vehicle seat having a device part (2) connected to the seat part and a device part (3) connected to the backrest, which can be pivoted opposite to each other about a pivot axis (14), wherein both device parts (2,3) have parts of gearings (4,5) forming a swash mechanism, which roll over each other under the influence of cam means (11) that can be rotated about a pivot axis (14). The drive of the cam means (11) is provided via a two-part carrier, comprised of a metal carrier boss (17) and a metal carrier plate (18) non-rotatingly connected therewith. The carrier boss (17) has a collar (17.2) for axial bracketing of the device parts (2,3) on one side of the device for adjustment of the level of inclination (1). The object is to configure this type of device for adjustment of the level of inclination, so that no longer requires an additional locking ring for axial bilateral bracketing of the device parts (2,3). The solution resides in the fact that the carrier plate (18) is fastened axially to the carrier boss (17) on the other side of the device for adjustment of the level of inclination (1) for completion of the bracketing of the device parts (2,3).
Owner:FAURECIA AUTOSITZE
Variable control system of plunger variable pump
InactiveCN101550921AImprove job stabilityEnergy savingServomotorsPositive-displacement liquid enginesConstant powerLoad sensing
The invention discloses a variable control system of plunger variable pump, comprising a plunger variable pump having an output main oil way supplying oil to load of a hydraulic system, a left variable oil cylinder component and a right variable oil cylinder component used for regulating swash plate tilt angle change, also having a constant power valve, a pressure stop valve and a load sensitive valve. The system realizes three control functions at the same time: constant power, pressure stop and load sensing, not only has simple structure, but also can greatly improve work stability of the plunger variable pump, and has advantage of saving energy.
Owner:SHANGHAI ELECTRICAL HYDRAULICS & PNEUMATICS
Transmission with resistance torque control
InactiveUS7575534B2Increased resistance torqueImprove engine efficiencyToothed gearingsEngine controllersDrive shaftGear wheel
The transmission includes a minimal-orbiter gear complex and a single infinitely-variable rotary control device. The minimal orbiter includes only a control gear and an output gear interconnected by the different gearing portions of at least one cluster gear supported by an orbiting web responsive to an input drive provided by a primary engine. The rotary control device may be any kind of apparatus that is capable of providing resistance torque that can match the torque of the primary engine to slow and stop the control gear of the orbital complex. In a preferred embodiment disclosed, the rotary control device is a hydraulic jack machine having a drive shaft connected to an adjustable swash plate that provides primary control of the flow of fluid through the machine.
Owner:TORVEC INC
Axial piston machine
ActiveUS7988428B1Reduce operating costsEasy to deployMembranesPositive displacement pump componentsMotor driveReciprocating motion
A pressure pump in a primary liquid flow is combined with a pressure exchanger for energy recovery from a secondary liquid flow. A motor-driven rotor portion, including two (primary and secondary) rotatable drum-type cylinder assemblies, is disposed between end blocks configured with input / output ports and cavities forming sliding synchronous reversing valves. Interconnected piston assemblies, including at least one primary piston and one secondary piston, are reciprocated axially by a central angled swash-plate in a progressive sequential manner by rotation of the rotor portion. The combination machine can be optimized for beneficial deployment in a reverse osmosis seawater desalination system to provide unusual simplicity, high efficiency energy recovery from the brine discharge flow and low overall operating cost.
Owner:OCEAN PACIFIC TECH
Methods and apparatus for swash plate guidance and control
InactiveUS6360987B1Direction controllersSpecial data processing applicationsEngineeringRotary actuator
Apparatuses and methods for controlling an object spinning at a first rate in a first direction. The apparatus includes a swash plate, a rotor, a spin actuator, a roll actuator, and a pitch actuator. The rotor is coupled to the swash plate. The spin actuator is coupled to the rotor and is configured to spin the rotor in a second direction opposite the first direction at a second rate. The roll actuator is coupled to the rotor and is configured to displace the swash plate along a longitudinal axis. The pitch actuator is coupled to the rotor and is configured to tilt the swash plate in a tilt direction about the longitudinal axis, the tilt direction being adjustable by adjusting the second rate relative to the first rate. The roll actuator may be coupled to the pitch actuator so that the pitch actuator keeps a substantially identical orientation with the swash plate as the swash plate is displaced along the longitudinal axis by the roll actuator.
Owner:BAE SYST INTEGRATED DEFENSE SOLUTIONS
Variable displacement type compressor with displacement control mechanism
ActiveUS20090269216A1Control displacementMulti-stage pumpsPositive-displacement liquid enginesDisplacement controlEngineering
A variable displacement type compressor in which a discharge-pressure region, a suction-pressure region and a pressure control chamber are defined, has a tiltable swash plate and a piston reciprocated by the swash plate in the pressure control chamber. The inclination angle of the swash plate and the piston stroke are changed by adjustment of pressure in the pressure control chamber thereby to control the displacement of the compressor. The compressor further comprises a supply passage for supplying refrigerant gas from the discharge-pressure region to the pressure control chamber, a release passage for releasing the refrigerant gas from the pressure control chamber to the suction-pressure region, a first control valve for adjusting a cross-sectional area of the supply passage from the discharge-pressure region to the pressure control chamber and a second control valve for adjusting cross-sectional area of the release passage. The second control valve includes a valve body for opening and closing the release passage whose cross-sectional area is set minimum when the valve body is located at the closed position and a valve spring for urging the valve body in a direction to open the release passage. When the second control valve is closed, pressure in the supply passage downstream the first control valve acts on the valve body in a direction to close the release passage and pressure in the suction-pressure region acts on the valve body in a direction to open the release passage.
Owner:TOYOTA IND CORP
Moving-type stable lifting decoration platform for indoor decoration
InactiveCN106968426ASolve support problemsImprove stabilityBuilding scaffoldsEngineeringScrew thread
Owner:惠安县长捷机械科技有限公司
Axial variable displacement plunger pump of swash plate
InactiveCN101487458APositive-displacement liquid enginesMulti-cylinder pumpsEngineeringHigh pressure
The invention provides a power element used in a hydraulic transmission system. A swash plate variable axial plunger pump consists of a swash plate, a plunger cylinder body and a port plate. The angle-variable swash plate rotates with a drive rotating shaft which is connected by a hinge, and the swash plate drives the plunger to only have reciprocating motion in a fixed cylinder barrel, thus avoiding the disadvantages of large rotating inertia, large friction surface of port surface and easy leakage of a common swash plate axial plunger pump. The swash plate can be divided into a manual swash plate, a hydraulic-control swash plate and a hydraulic-control and spring combined variable swash plate. The swash plate can be conveniently adjusted by a window above a variable shell. The plunger pump has various uses and advantages of small rotating inertia, little friction surface, and high mechanical efficiency and volumetric efficiency, and being insensitive to pollution, generating little heat, being capable of taking as an economical combination pump with 'low pressure and large flow or high pressure and small flow' and the like. Besides as a common pump, the axial plunger pump can also be used in the superhigh pressure and synchronous cylinder field. The axial plunger pump has the advantages of general working accuracy and low production cost.
Owner:张全根
Device for measuring stirring loss caused by high-speed rotating element of axial plunger pump/motor
ActiveCN105201814AThe overall structure is simple and reliableReduce processing costsPump testingFluid-pressure actuator testingDynamic balanceEngineering
The invention discloses a device for measuring stirring loss caused by a high-speed rotating element of an axial plunger pump / motor. The device mainly comprises a main shaft, a cylinder, a torque rotation speed sensor, screws, plungers, a swash plate, a variable rod, a variable piston, a compression spring, a front end cap, a rear end cap, a casing and the like. According to the device for measuring the stirring loss, almost all factors influencing the stirring loss in the pump / motor are taken into consideration, interference of other power loss sources in the pump / motor to measurement of the stirring loss is eliminated through application of proper enlargement of a fit clearance, fastening of a mounting structure and grease lubrication of a bearing, dynamic balance of the rotating element is realized through the designed screw structure, and the stirring loss is measured according to a torque difference measured when a casing is full of oil or devoid of oil under the same work condition. The device is simple and reliable in overall structure, parts are convenient to replace, and the machining and detection costs are low.
Owner:ZHEJIANG UNIV
Swash plate anti-torque mechanism
InactiveUS8303248B2Facilitates optimal placementReduce tangential loadPropellersPump componentsDegrees of freedomSwashplate
An anti-torque mechanism which permits a full range of swashplate assembly motion. The anti-torque mechanism generally includes an anti-torque shaft and a compound bearing mounted thereto to provide five-degrees-of-freedom (spherical-linear-elastomeric) so as to permit a swashplate attachment point to move axially in response to pitch input; pivot in response to swashplate tilt; and move in / out in the radial direction.
Owner:SIKORSKY AIRCRAFT CORP
Hydraulic riding trowels with automatic load sensing
ActiveUS20110222966A1Increase powerEasy to control automaticallyBuilding constructionsRoads maintainenceAutomatic controlLoad sensing
High performance, multiple rotor, hydraulically driven riding trowels for finishing concrete have unloader valve circuitry for controlling hydraulic pressure. Each trowel has a rigid frame with two or more downwardly-projecting, bladed rotor assemblies that finish concrete. The rotor assemblies are tilted manually or hydraulically to effectuate steering and control. Blade pitch is controlled manually or hydraulically. The unloader valve system monitors drive pump pressure with a shuttle valve to derive an unloader pilot signal. A sequence valve responds to the unloader pilot signal to control a pressure valve that bypasses the normal foot control valve in an overpressure situation. The pressure control head signal normally applied to the hydraulic drive motor control heads is modified with a feedback signal to automatically control the associated pump swash plates. A gearbox may be disposed between the drive motors and rotors. Piston type and gear and vane type motors may power the rotors.
Owner:ALLEN ENG
Coaxile reverse rotating type radio controlled vertiplane
To provide a coaxial contrarotating radio controlled (R / C) helicopter having maneuverability and operationality sufficient for enjoying manipulating the R / C helicopter indoors by constituting a simple mechanism for driving and controlling rotors. This coaxial contrarotating R / C helicopter is equipped with a swash plate comprising a lower plate, mounted to move around the rotary axis of a mast in a direction to intersect the rotary axis by a geared motor, and an upper plate which is mounted on the central opening part of the lower plate through a bearing and is connected with the lower plate through a blade holder and a control arm slantingly connected to the mast. The rotational surfaces of the lower blades is tilted by the control arm in conjunction with the movement of the swash plate in the direction to intersect the rotary axis of the mast. As a result, a moving direction of the aircraft is controlled. The flight posture of the aircraft is controlled by interlocking rotations made by an upper rotor head and a stabilizer. (C)2004,JPO.
Owner:HIROBO
Variable displacement compressor
A variable displacement compressor including a drive shaft through which a gas passage extends between front and rear ends of the drive shaft. The gas passage is connected to a suction chamber at the rear end of the drive shaft. The drive shaft includes a first gas inlet passage, which connects the gas passage to a crank chamber through a lip seal, an oil chamber, and a thrust bearing, and a second gas inlet passage, which connects the gas passage to a central portion of the crank chamber. The drive shaft further includes a sleeve movable along the drive shaft as a swash plate inclines to adjust an open amount of the second gas inlet passage in accordance with the inclination angle of the swash plate, that is, the displacement of the compressor.
Owner:TOYOTA IND CORP
Friction stir welding apparatus of piston for swash plate type compressor with variable capacity
InactiveUS6953140B2Increased durabilityInhibition formationWelding/cutting auxillary devicesAuxillary welding devicesEngineeringPiston
A friction stir welding apparatus of a piston for variable capacity swash plate type compressor bonds two pistons through frictions stir welding without forming a hole in welded portions of the piston members. The friction stir welding apparatus includes: A support that rotatably supports coaxially coupled first and second pistons. A welder, rotatably inserted into welded portions of the first and second pistons supported on the support, performs friction stir welding along the rotation direction of the first and second pistons. Support rollers elastically mounted on the lower portions of the pistons have central axis lines of the piston members on central axis lines of the rotation support while the pistons are supported on the support. The rollers vertically move through a predetermined height while supporting the pistons. The welder is transferred from the welded portions to another position after welding of the welded portions.
Owner:HANON SYST
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