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公开(公告)号：US20240328494A1
公开(公告)日：2024-10-03
申请号：US18616831
申请日：2024-03-26
Applicant: Hydracharge LLC
Inventor： Jeffrey J. Buschur
IPC: F16H47/04
CPC classification number: F16H47/02
Abstract: A power split continuously variable transmission (CVT) technology in which efficiency improvements are obtained by elimination of gear meshing at the 1:1 ratio point. A family of power split transmissions are defined using variable displacement hydraulic devices as the variator and employing rotary couplings as speed summers. Input coupled, output coupled and compound coupled systems are described along with impact of and avoidance of power circulation (aka recirculation). Multiple and bidirectional mechanical channel inputs to the speed summer and clutching mechanisms are described enabling transmissions to reach forward gear ratio ranges with a speed of up to 23× with workable efficiencies throughout which can result in improvement in overall efficiency such as in ICE powertrains as well as permitting CVT function in heavy-duty EV powertrains during acceleration or high-grade conditions where otherwise extremely high torque and sustained low speed operations may induce highly inefficient or drive motor overheat conditions.
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公开(公告)号：US20240308333A1
公开(公告)日：2024-09-19
申请号：US18533267
申请日：2023-12-08
Applicant: KUBOTA CORPORATION
Inventor： Tomoya KATSUURA , Yuichiro MATOBA , Shigeru KOMATSU , Kazuya OKUBO
IPC: B60K25/02 , B60K25/06 , B62D5/06 , B62D5/07 , B62D49/06 , F15B15/20 , F15B21/0423 , F16H47/02 , F16H63/30
CPC classification number: B60K25/02 , B60K25/06 , B62D5/063 , B62D5/07 , B62D49/06 , F15B15/20 , F15B21/0423 , F16H47/02 , F16H63/3023 , B60K2025/026 , F16H2047/025
Abstract: A working vehicle includes a first hydraulic pump (e.g., a variable displacement pump) with a delivery flow rate controlled by load sensing control, a second hydraulic pump (e.g., a fixed displacement pump), at least one working-machine-related control valve to control at least one working-machine-related hydraulic actuator, a power shift valve to control at least one traveling-power-transmission-related hydraulic actuator, and a power steering controller to control a steering-related hydraulic actuator. The at least one working-machine-related control valve is provided in a first hydraulic system supplied with hydraulic fluid by the first hydraulic pump, and at least one of the power shift valve or the power steering controller is provided in a second hydraulic system supplied with hydraulic fluid by the second hydraulic pump.
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公开(公告)号：US20240276900A1
公开(公告)日：2024-08-22
申请号：US18442879
申请日：2024-02-15
Applicant: Metalcraft of Mayville, Inc.
Inventor： James Hall , Craig Antonioni
CPC classification number: A01B45/02 , A01B63/008 , B60K17/043 , B60K17/14 , B60K25/02 , F16H47/02 , B60K2025/026
Abstract: An aerator implements a drive system with an outboard transmission(s) in which the transmission(s) is arranged outwardly of a frame rail(s) of the aerator's chassis to deliver power to both a drive wheel(s) and a driven set of tines of a tine assembly. The tine assembly may include at least one non-driven or freewheeling set of tines between outer sets of driven tines. An adjustable depth control system allows for selecting a tine depth that can achieved through a single button push that lowers the tine assembly to the selected depth.
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公开(公告)号：US11820489B2
公开(公告)日：2023-11-21
申请号：US17491720
申请日：2021-10-01
Applicant: The Boeing Company
Inventor： Mitchell Loren Ray Mellor
CPC classification number: B64C13/34 , F15B15/02 , F16H47/02 , F15B2211/7058
Abstract: Ball screw rotary actuator with ball cage. In one embodiment, a ball screw rotary actuator includes an outer cylinder, a piston, and inner shaft. Outer ball bearings travel in helical groove between the outer cylinder and position to rotate the piston as it translates due to fluid pressure. The inner shaft is situated radially inward of the piston, and straight grooves are disposed between the piston and the inner shaft. Inner ball bearings travel in the straight grooves and rotate the inner shaft as the piston rotates. The ball screw rotary actuator also includes an outer ball cage to position the outer ball bearings in a spaced configuration, an outer indexing gear to control a position of the outer ball cage, an inner ball cage to position the inner ball bearings in a spaced configuration, and an inner indexing gear to control a position of the inner ball cage.
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公开(公告)号：US09885404B2
公开(公告)日：2018-02-06
申请号：US14899353
申请日：2014-07-14
Applicant: AISIN AW CO., LTD.
Inventor： Yusuke Takahashi , Nobukazu Ike , Osamu Murai
CPC classification number: F16H41/04 , F16H3/663 , F16H41/30 , F16H47/02 , F16H57/0441 , F16H2200/006 , F16H2200/0086 , F16H2200/2007 , F16H2200/2023 , F16H2200/2082 , F16H2200/2097
Abstract: A front support includes a second boss portion which extends toward a chain drive mechanism and to which a stator shaft is fixed. The second boss portion is inserted into a tubular portion of an impeller hub through a drive sprocket. An oil passage that communicates with a fluid transmission chamber is defined between the inner peripheral surface of the tubular portion and the outer peripheral surface of the stator shaft. A seal member that restricts an inflow of working oil from the oil passage is interposed between the tubular portion and the second boss portion. A shaft-side oil groove and a recessed portion which communicate with an in-case oil passage formed in the front support and the oil passage are formed between the second boss portion and the stator shaft.
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公开(公告)号：US09845856B2
公开(公告)日：2017-12-19
申请号：US15123035
申请日：2015-02-18
Applicant: Johnston Sweepers Limited
Inventor： Ross Gutteridge
CPC classification number: F16H47/02 , B60K17/10 , B60K17/28 , E01H1/0854 , F16H57/021 , F16H2047/025 , F16H2057/02008
Abstract: This invention is directed toward a powertrain for a road cleaning vehicle. In particular, the powertrain includes a hydrostatic gearbox (34) having a casing (50) for directing power from a primary gearbox to a drivetrain and/or one or more road cleaning tools. The casing (50) comprises first and second sections (51, 52) and a plurality of passageways (107, 107) defined by the edges of both the first and second sections (51, 52). An input shaft is provided having an integral gear extending orthogonally therefrom and having an outer portion extending outside of the internal volume of the casing.
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公开(公告)号：US20170328458A1
公开(公告)日：2017-11-16
申请号：US15588633
申请日：2017-05-06
Applicant: Robert Bosch GmbH
Inventor： Erich Ilk , Norman Brix
CPC classification number: F16H47/02 , F16H59/40 , F16H59/54 , F16H61/0213 , F16H61/16
Abstract: A transmission arrangement for a travel drive includes a transmission input that is configured to be coupled to a working machine and a transmission output that is configured to be coupled to an output drive. The transmission arrangement further includes a hydrostatic transmission and a manual transmission coupled in series for the transmission of power between the transmission input and the transmission output. The manual transmission has changeable transmission stages at least when the transmission output is at a standstill. A control device is configured to change the transmission stages.
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公开(公告)号：US20170307075A1
公开(公告)日：2017-10-26
申请号：US15650358
申请日：2017-07-14
Applicant: Kanzaki Kokyukoki Mfg. Co., Ltd.
Inventor： Jun MATSUURA , Koji Iwaki , Tomoyuki Tsuji , Minoru Kamada , Hideki Kanenobu , Kengo Sasahara
IPC: F16H61/4069 , F16H39/04 , F04B23/04 , F16H61/431 , F04B1/00
CPC classification number: F16H61/4069 , F04B1/00 , F04B23/04 , F16H39/04 , F16H47/02 , F16H61/431
Abstract: An HST control mechanism includes a rotary member, a servo unit, a telescopic member, and a biasing device. The rotary member for controlling a displacement of a hydrostatic transmission (HST) is pivoted outside of a casing incorporating the HST. The servo unit includes a telescopically movable actuator and a valve controlling the telescopic movement of the actuator. The actuator is interlockingly connected to the rotary member. The servo unit is pivotally supported on the casing via a first pivot. The servo unit rotates centered on the first pivot as the rotary member rotates according to the telescopic movement of the actuator hydraulically controlled by the valve. The telescopic member is pivotally supported on the casing via a second pivot. The telescopic member is provided with the biasing device that biases the telescopic member and the rotary member toward a position corresponding to a neutral state of the HST.
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公开(公告)号：US09791010B2
公开(公告)日：2017-10-17
申请号：US14533309
申请日：2014-11-05
Applicant: OMSI TRASMISSIONI S.P.A.
Inventor： Renato Soncina
Abstract: A stepless speed variation transmission drive unit, in particular for industrial, agricultural or railway machinery, comprises at least a first input pinion (10), at least a first hydraulic motor (12) connected to said first input pinion (10), an output shaft (30), and at least a second hydraulic motor (22, 23). The first hydraulic motor (12) is connectable and disconnectable to/from said output shaft (30) by means of a clutch (50), while the second hydraulic motor (22, 23) is adapted to transmit the movement directly to the output shaft (30). The transmission drive unit further comprises a brake device (70) adapted to block the rotation of the first hydraulic motor (12) when said first hydraulic motor (12) is disconnected from the output shaft (30).
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公开(公告)号：US09512914B1
公开(公告)日：2016-12-06
申请号：US14684034
申请日：2015-04-10
Applicant: Hydro-Gear Limited Partnership
Inventor： Michael L. Bennett
IPC: F16H57/023 , F16H57/028 , F16H47/02 , F16H57/04 , F16H57/02
CPC classification number: F16H57/023 , B60K17/28 , B60K25/06 , B60K2025/065 , F16H47/02 , F16H57/028 , F16H57/0424 , F16H2057/02052 , F16H2057/02082 , F16H2057/02086 , Y10T74/19149 , Y10T74/19242
Abstract: A drive assembly is disclosed, with a hydraulic center section for a rotating kit disposed in a housing. A spring is disposed between the center section and an internal surface of the housing. The center section may include a main body having first and second running surfaces and at least one side wall, and internal porting formed in the main body to connect the first running surface with the second running surface. A pair of passages in communication with the internal porting may be formed in a structure having an external surface forming an alignment profile shaped to fit in a first internal housing pocket. A protrusion shaped to fit in second internal housing pocket extends from a side wall of the main body generally opposite to the structure, and the spring may engage the protrusion.
Abstract translation: 公开了一种驱动组件，其具有用于设置在壳体中的旋转套件的液压中心部分。 弹簧设置在中心部分和壳体的内表面之间。 中心部分可以包括具有第一和第二运行表面和至少一个侧壁的主体，以及形成在主体中的内部移动以将第一行进表面与第二行进表面连接。 与内部端口连通的一对通道可以形成为具有形成对准轮廓的外表面的结构，其形状适合于配合在第一内部容纳口袋中。 形成为装配在第二内部容纳凹部中的突起从主体的与该结构大体相反的侧壁延伸，并且弹簧可与突起接合。
