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JP2024509019A |
The present invention provides a multi-mode mechanical-hydraulic composite transmission device. [Solution] The multi-mode mechanical-hydraulic combined transmission device includes an input member, a hydraulic transmission mechanism, a m...
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JP2024509017A |
The present invention discloses a composite transmission device with a mechanical continuously variable transmission and a control method thereof. [Solution] The above composite transmission with a mechanical continuously variable transm...
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JP2024509215A |
The present invention provides a mechanical-dual annular-hydraulic combined transmission mechanism. [Solution] The above-mentioned machine-double annular-hydraulic combined transmission mechanism includes an input member, a merging mecha...
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JP7433679B2 |
A continuously variable transmission with both equal-difference output and equal-ratio output includes an input mechanism, a hydraulic transmission mechanism, a planetary-gear-set convergence mechanism, an equal-difference output mechani...
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JP7426259B2 |
A first gear mechanism is connected to an input shaft. A first output gear is connected to a first gear mechanism. A second gear mechanism is connected to the input shaft. A second output gear is connected to the second gear mechanism. A...
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JP7419064B2 |
To easily warm up lubricating oil in a transmission case (12) housing a transmission device (5).A work vehicle (1) includes a vehicle body (3) provided with a travel device (7); a prime mover (4) provided in the vehicle body (3); a trans...
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JP7393993B2 |
A damper device according to the present disclosure comprises a first damper including a first elastic body for transmitting torque between an intermediate element and an input element coupled to an engine and a second damper including a...
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JP7387350B2 |
To improve traveling performance of a tractor during braking in a work vehicle including a hydrostatic continuously variable transmission.A work vehicle includes: a vehicle body provided with a travelling device; a hydrostatic continuous...
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JP2023162923A |
To provide a simple power transmission device connected to a hydraulic pump and a hydraulic motor.A power transmission device comprises a hydraulic pump, a hydraulic motor, a compound planetary gear mechanism, and first to third clutches...
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JP7376069B2 |
To expand a gear changeable range of HMT output, in a transmission structure having HST forming an HMT structure, and a planetary gear mechanism.In a transmission structure, a capacity of a pump body is changed to increase and decrease a...
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JP7374064B2 |
To configure a work vehicle that can suppress increase in size of a transmission configuration without impairing effectiveness of using a hydrostatic continuously variable transmission device and a planetary gear transmission device.A wo...
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JP7352320B2 |
The present invention provides a multi-mode composite transmission device that integrates a gear-hydraulic pressure-pyramid, comprising an input assembly, a hydraulic transmission mechanism, a front planetary gear mechanism, a pyramid ty...
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JP7349581B2 |
A transmission (21) as a power transmission device for a vehicle comprises an input shaft (22), an output shaft (23), a planetary continuously variable transmission mechanism (31), a direct connecting mechanism (27), and an idler gear (2...
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JP7349582B2 |
A transmission (21) as a power transmission device for a vehicle comprises an input shaft (22), an output shaft (23), and a planetary continuously variable transmission mechanism (31). The planetary continuously variable transmission mec...
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JP7336888B2 |
A work vehicle includes: a power transmission device that includes a hydraulic transmission mechanism including a first hydraulic pump motor and a second hydraulic pump motor and transmitting power input to an input shaft to an output sh...
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JP2023118639A |
To provide a planetary gear assembly capable of attaining downsizing of an entire device while expanding a gear change range of an HMT device to be formed in cooperation with an HST.A planetary gear assembly comprises: a cylindrical tran...
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JP2023112720A |
To provide a planetary gear assembly capable of reducing the size of the entire device, while expanding a shift range of an HMT device formed in cooperation with an HST.A planetary gear assembly comprises: a transmission shaft; first and...
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JP2023094670A |
To provide a service vehicle which includes a transmission case for housing a gear transmission which outputs power from a power source to a travel device and which enables a lubrication oil to be taken out from the transmission case whi...
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JP7300713B2 |
To provide a transmission structure which can expand a change width of a shift output shaft without occurrence of sudden rotational speed change in the shift output shaft which is operatively rotationally driven by output of an HMT struc...
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JP2023078944A |
To efficiently recover regenerative energy.A drive unit 100 includes a first electric motor 2a, a second electric motor 2b, and a fluid coupling 5. The fluid coupling 5 has an input part and an output part. In the input part, torque is t...
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JP7285379B2 |
A speed-changing device (21) is provided with an input shaft (22), an output shaft (23), a planetary gear mechanism (29), a first variator (33), a second variator (34), and a controller (25). The planetary gear mechanism (29) is configur...
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JP7271036B2 |
The present invention provides a gear-double ring-hydraulic hybrid transmission device, including an input mechanism, a double ring series transmission mechanism, a hydraulic transmission mechanism, an output member, a front planetary ge...
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JP2023061013A |
To achieve a plurality of forward moving modes without complicating a structure.A torque converter amplifies torque of a first rotation direction. A first torque transmission path 6a transmits torque through a torque converter 3. A secon...
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JP7241503B2 |
To provide a service vehicle in which an increase in a manufacturing cost can be easily curbed.A service vehicle comprises: a hydrostatic continuously variable transmission 2 which has a hydraulic circuit 20; a first oil passage 21 where...
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JP2023014983A |
To provide a transmission structure which can smoothly switch a first HMT transmission state for inputting power from a drive source and an HST to planetary first and third elements, and outputting it from a planetary second element, and...
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JP7213683B2 |
To provide a work vehicle that can miniaturize a transmission case while having a drive configuration having a hydrostatic continuously variable transmission and a planetary gear transmission.In a work vehicle, an engine 4, a planetary g...
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JP7193838B2 |
A working vehicle (200-200C) of this invention includes a main speed change structure (1-1C) changing a speed of rotational power from a drive source (210) and transmitting the resulting rotational power to a speed change output shaft (4...
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JP7155020B2 |
A kinetic energy recovery system (KERS) is provided. The KERS (1) comprises a first speed-up gear arrangement (12) having an input (10) connectable to a vehicle powertrain. The KERS further comprises a hydraulic variator made up of first...
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JP2022156638A |
To provide a hydraulic/mechanical stepless gear shift device capable of small-sizing a case in which an HST and a planetary gear mechanism accommodated in a housing are stored.A hydraulic/mechanical stepless gear shift device comprises: ...
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JP2022143170A |
To improve the durability of a PTO (Power Take-Off) clutch.A power transmission device includes a first shaft, a second shaft, a clutch, a first rotation transmission mechanism, and a second rotation transmission mechanism. The first sha...
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JP7122912B2 |
To improve variety of torque transmission patterns.A torque converter 100 includes: a torque converter body 2; a planetary gear mechanism 3; a first clutch 4; and a second clutch 5. The torque converter body 2 has a front cover 21 into w...
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JP7094056B2 |
A mechanical hydraulic compound transmission apparatus having multiple power distribution modes and a control method; the apparatus comprises an input shaft (1), a shunting mechanism (2), a mechanical transmission assembly (3), a hydraul...
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JP7034051B2 |
Provided is a shift power transmission apparatus of a tractor that has a small up-down width or a small transverse width and a short front-rear length. A shift output unit (23) is located further toward a vehicle rear side than a combine...
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JP6994239B2 |
To provide a work vehicle which is prevented from being moved at an unintended creep speed, the work vehicle comprising an HMT structure capable of switching forward/backward movements.In a work vehicle, an HMT structure formed from an H...
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JP6990200B2 |
According to the present invention, there is provided a method of reducing output torque deficits during the launch of a vehicle having a continuously variable transmission, wherein the variator has an input connected to a prime mover an...
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JP6977417B2 |
To provide a transmission capable of performing the reverse travel of a vehicle without complicating its structure.The transmission includes a hydraulic transmission part connecting via a closed circuit one variable displacement pump mot...
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JP6972799B2 |
To provide an oil passage switching device capable of regenerating rotational energy of a wheel to hydraulic energy, without complicating operations.An oil passage switching device is provided between a first oil passage and a second oil...
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JP6961643B2 |
A wheeled work vehicle includes: a transmission transmitting the rotational power of a travelling hydraulic motor to wheels; a travelling control valve having an interruption position that interrupts supply of hydraulic fluid from a hydr...
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JP6943097B2 |
To provide a driving force control device capable of securing temporarily high driving force.The driving force control device, which is used for a vehicle mounted with a transmission including a hydraulic transmission unit connecting via...
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JP2021146782A |
To provide a hybrid drive device in which the device can be made compact while securing a torque capacity by distributing power from a power source and performing power conversion.A hybrid drive device according to the present invention ...
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JP6933064B2 |
To provide a hydraulic mechanical continuously variable transmission capable of taking out hydraulic energy from a hydraulic transmission part to the outside.The hydraulic mechanical continuously variable transmission includes a differen...
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JP6907841B2 |
To provide a transmission capable of transmitting power from a driving source to an output shaft with high efficiency.The transmission includes a hydraulic transmission unit connecting via a closed circuit one variable displacement pump ...
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JP6907840B2 |
To provide a transmission capable of transmitting power from a driving source to an output shaft with high efficiency.The transmission includes a hydraulic transmission unit connecting via a closed circuit one variable displacement pump ...
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JP6901506B2 |
A method is provided for estimating input torque and output torque in a continuously variable transmission having a variator. The method comprising the steps of determining (202) a transmission input and/or output speed, calculating (204...
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JP6904180B2 |
To provide a transmission capable of suppressing an increase in the size in the radial direction.The transmission includes an input shaft to which the turning force of a driving source is input, a speed reduction mechanism for transmitti...
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JP2021076206A |
To expand a gear changeable range while making forward traveling rotation power and backward traveling rotation power switchable.When a gear change operation member is located in a zero-speed position, a transmission structure of the pre...
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JP2021046904A |
To smoothly transmit power of a continuously variable transmission during gear shifting, etc. in a work vehicle including the continuously variable transmission continuously shifting a driving force and a planetary gear shifting mechanis...
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JP2021046906A |
To improve travelling performance of a tractor during braking and release of braking in a work vehicle including a hydrostatic continuously variable transmission.A work vehicle includes: a vehicle body provided with a travelling device; ...
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JP6843338B2 |
An HMT unit of the present invention includes a housing that houses an HST and a planetary gear mechanism in a state where the sun gear is operatively connected to a motor shaft and is detachably connected to a mounting site. The housing...
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JP6822156B2 |
To provide a transmission which can make a vehicle travel at a high speed without using a large-capacity hydraulic pump motor.A transmission comprises: a hydraulic gear change part which is formed by connecting one variable capacity type...
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