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Patent Searching and Data


Matches 501 - 550 out of 1,994

Document Document Title
JP4051313B2  
JP4046954B2  
JP4040492B2  
JP2007333008A
To provide a spool capable of reducing an operation noise of a hydraulic continuously variable transmission device, while securing a function of the spool. This hydraulic continuously variable transmission device 1 wherein an input side ...  
JP2007333005A
To provide a hydraulic servo mechanism capable of improving the degree of freedom on layout, while securing a function, and a hydraulic continuously variable transmission device capable of realizing a compact configuration. This hydrauli...  
JP2007333006A
To provide a cylinder block easily manufacturable and miniaturizable, while keeping a function of the cylinder block. This device has a configuration wherein each plunger holes 31, 41, for storing input side plungers 8, and output side p...  
JP2007333007A
To provide an easily-manufacturable fixed swash plate which adjusts dynamic balance, and reduces the weight, while securing a function of the fixed swash plate. The hydraulic continuously variable transmission device 1 comprises, on an i...  
JP2007333009A
To provide a timing spool and a spool cam which aligns surely a timing when sliding each spool, slides each spool smoothly, and prevents generation of seizure. The hydraulic continuously variable transmission device 1 comprises, on an in...  
JP2007333010A
To provide a technique which reduces an installation space of each valve, while securing each function of each check valve and a relief valve, and also reduces the capacity of a charge pump. The hydraulic continuously variable transmissi...  
JP2007535633A
Smaller lightweight liquid pressure pump / motor give the volume efficiency notably improved at the piston with the main part portion of the same length as the direction length of an axis of each cylinder which reciprocates the inside of...  
JP2007303637A
To provide a hydrostatic continuously variable transmission capable of making effective use of an outside space by scheming a supporting structure for supporting a movable swash plate on both journaling portions of a transmission case. T...  
JP2007302146A
To provide a transmission capable of accomplishing simplification of an operation oil feeding structure to a hydraulic servo mechanism capable of ensuring a free space between a drive source and it and changing/operating a volume adjustm...  
JP4012839B2  
JP4012848B2  
JP4006493B2  
JP2007530874A
Two motors (12, 14) are arranged at the both sides which a common axis (16) counters, and rigid body connection of the drive board (30, 32) of a pump/motor (12, 14) is mutually carried out by, for example, being strongly in contact with ...  
JP2007261576A
To provide a pump unit with a simple structure capable of branched outputting drive force from a drive source to a sub-transmission route separately from a main transmission route formed with first and second hydraulic motor units. The p...  
JP2007255710A
To provide an electronic control system which is used in an automobile having a plurality of hydraulic driven wheels and controls friction between the wheel and a travelling surface. The electronic control system comprises a plurality of...  
JP3986764B2  
JP3986584B2  
JP2007247821A
To provide a hydraulic power transmission device having higher efficiency in an applicably effective manner while suppressing its energy loss. The hydraulic power transmission device A comprises a hydraulic pump 3 for discharging pressur...  
JP3974998B2  
JP3963050B2
To keep three other wheels in driving even if one of the wheels goes in idling using a simple configuration without providing any flow control valve or the like for restricting the differential motion. A hydraulic motor 22a for driving t...  
JP3962348B2
To effectively utilize an end part of a male screw formed on a screw shaft in a ball screw mechanism for controlling swing of a swash plate. A hydraulic motor M is constituted by a motor cylinder 32 having a motor plunger hole 32a, a mot...  
JP3954910B2
To solve a conventional problem of incapability of inserting a check valve wholly through a main circuit when it is inserted in a perpendicular direction to the main circuit in the case two hydraulic continuously variable transmissions a...  
JP2007192348A
To provide a hydrostatic continuously variable transmission of a work vehicle for shortening idling, by quickly raising the oil temperature of oil flowing in an HST. This hydrostatic continuously variable transmission has two sets of a p...  
JP3943676B2
To easily form an orifice and to stabilize an orifice characteristic in a power transmission for a four-wheel drive vehicle provided with a hydraulic coupling device. A hydraulic coupling device H is provided with left and right vane pum...  
JP2007517716A
Hydrostatic power transmission (10, 11, 12, 13) is used for vehicles (1). This transmits driving force (F) to 2nd at least one wheel (3) from 1st at least one wheel (2). This equipment is equipped with the fluid pump which can be made to...  
JP2007170612A
To provide inexpensive hydraulic transmission device and machine capable of stopping rotation of an output shaft securely by stop operation, dispensing with a link mechanism from a driver's seat, and achieving satisfactory operation prop...  
JP2007162908A
To provide a crawler traveling vehicle capable of equalizing tilting states of movable skew plates respectively disposed on right and left hydraulic pumps of HSTs in linear traveling.A hydraulic pressure correction valve 20 is disposed n...  
JP3930927B2
To dispense with piping between a charge pump and selector valves as well as to constitute the charge pump provided on a hydraulic transmission (HST) on a oil pressure source in relation to the selector valves for controlling a hydraulic...  
JP3926243B2
To provide a lawnmower in which outputs of a pair of left and right hydrostatic continuously variable transmissions are reduced to be transmitted to a pair of left and right travelling devices respectively through a pari of left and righ...  
JP3923147B2
To make a swash plate type hydraulic device compact in the radial direction by forming many spool type distribution valves which communicate a port of each cylinder hole with a low pressure oil passage and a high pressure oil passage and...  
JP3918544B2
To solve the problems of a stepless hydraulic transmission having a hydraulic pump shaft for inputting use and a hydraulic motor shaft for outputting use placed one above the other comprising the lowering of the bottom position of a rear...  
JP2007092806A
To provide a hydrostatic continuously variable transmission stabilized in control of a movable swash plate by a hydraulic servo mechanism and capable of excellently controlling a load with a load control mechanism, in regard to structure...  
JP2007092805A
To provide a hydrostatic continuously variable transmission capable of restricting hunting in a load control mechanism to smoothly and stably control a load by obtaining a sufficient back pressure effect, in regard to structure for contr...  
JP2007092808A
To prevent creeping start when starting an engine, and to surely stop a vehicle in a slope, in regard to a hydrostatic continuously variable transmission provided with a hydraulic servo mechanism of structure for controlling tilting of a...  
JP2007092809A
To surely stop a vehicle in a slope by surely braking an engine, in regard to a hydrostatic continuously variable transmission provided with a hydraulic servo mechanism of structure for controlling tilting of a movable swash plate connec...  
JP2007085404A
To change output characteristics in forward and reverse travels by changing displacement of a hydraulic pump, and to provide efficient output characteristics in a hydraulic continuously variable transmission device.In the hydraulic conti...  
JP3892840B2
To provide a hydraulic drive device in such constitution that the rotary output shaft of an electric motor is coupled directly to a hydraulic pump or a hydraulic motor to drive the hydraulic pump or the hydraulic motor, and forms a drive...  
JP3886534B2  
JP2007022197A
To provide a wheel motor device capable of directing a hydraulic oil port and an oil port to proper directions respectively, in a wheel motor device with a hydraulic motor unit having a motor housing provided with the hydraulic oil port,...  
JP3869340B2
To solve a problem that miss assembly of one side surface and another side surface of a thrust plate can not be discriminated and efficiency drops with the lapse of time in a conventional HST. This transmission 10 is constructed in such ...  
JP2007002871A
To provide a cooling structure of a hydraulic continuously variable transmission in a simple structure at low cost.A port block 42 is connected to a transmission casing 41 storing a pump 10P and a motor 10M for transmission. A meandering...  
JP3853932B2
To provide a lockup state automatically, by switchingly controlling motor ports by second distributing valves in a position where a phase is shifted by a specific angle relative to motor cylinder holes in the circumferential direction of...  
JP2006292141A
To provide a variable displacement type hydraulic pump unit, which reduces manual control force and manual control volume for changing a volume of a hydraulic pump main body.This variable displacement type hydraulic pump unit is connecte...  
JP2006275224A
To minimize a driving force change of causing an engine speed change in releasing operation, when performing releasing operation of a lockup mechanism.This hydrostatic continuously variable transmission has a closed circuit C for connect...  
JP3830599B2
To eliminate the necessity of the specification corresponding to the high-speed rotation of auxiliary machines, and achieve simplification, by connecting a radial piston pump with a motor to each other through a cam chamber and limiting ...  
JP2006520447A
The present invention relates to the control device for the oil pressure differential gear in a vehicle. The purpose of the present invention is the weight element and overall dimension which have been improved, and is distribution of th...  
JP2006226301A
To provide a structure of an oil passage for lubricating oil injection capable of being efficiently manufactured and having a high degree of freedom in setting for a lubricating structure for a hydrostatic continuously variable transmiss...  

Matches 501 - 550 out of 1,994