公开(公告)号：US11320036B2

公开(公告)日：2022-05-03

申请号：US17023706

申请日：2020-09-17

Applicant: OVG Vacuum Technology (Shanghai) Co., Ltd.

Inventor： Yi Rong ,  Yue Li ,  Miaole Shen

IPC: F16H57/00 ,  F04C2/12 ,  F04C15/00 ,  F16H57/029

Abstract: A transmission structure of motor connection of roots pump comprises a shaft sleeve, a motor shaft cavity is opened inside the shaft sleeve, and the inner circle of the motor shaft cavity is concentrically meshed with the excircle of the motor shaft; a fixed bolt mounting cavity is opened on the outer surface of the shaft sleeve, a bolt through-hole is opened in the fixed bolt mounting cavity, the shaft sleeve is fixedly connected with the gear seat through a hexagon bolt, and the gear seat and the shaft sleeve rotate synchronously at the same shaft center; a gear is fixedly connected with the gear seat with a bolt, the gear seat is fixed to the pump shaft through a first keyway under the fitting between the first keyway and a first shaft key, and the pump shaft and the motor shaft are coaxially arranged at the center. The utility model overcomes the disadvantages of the prior art, which is convenient to install without wearing parts, not affected by temperature, pressure and external dust; and the structure is simple with compound seal and oil protection function; and when a motor with a motor shaft is selected, only the diameter and keyway of the motor shaft cavity of the part are required to fit the new motor.

公开(公告)号：US20220128141A1

公开(公告)日：2022-04-28

申请号：US17451821

申请日：2021-10-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomoyuki ONO

IPC: F16H57/00 ,  F16H57/04 ,  F16F15/12 ,  F16F15/124

Abstract: A dynamic damper for suppressing vibration generated by a gear attached to a rotation shaft, the dynamic damper, includes: a mass body that is disposed inside a rotation shaft having a hollow shape and extends along a shaft center of the rotation shaft; and an elastic body that couples the mass body to the rotation shaft. Further, a flow path for lubricating liquid to flow is provided between an inner peripheral surface of the rotation shaft and the mass body, and the flow path is formed by the inner peripheral surface of the rotation shaft at an axial position where the elastic body is disposed.

公开(公告)号：US11280272B1

公开(公告)日：2022-03-22

申请号：US16537587

申请日：2019-08-11

Applicant: Florida Turbine Technologies, Inc.

Inventor： Robert A Ress, Jr. ,  Stephen M Brooks

IPC: F16H57/02 ,  F02C7/36 ,  F16H57/00 ,  B23F1/02 ,  B23K31/02 ,  B23K101/00

Abstract: A lay shaft assembly for a speed reduction gearbox in a geared turbofan gas turbine engine, the lay shaft assembly having an output gear formed on a lay shaft as a single piece, and an input welded gear formed as a separate piece that is welded to the shaft in close proximity to the output gear. The output gear is machined and precision-ground prior to welding the input welded gear to the lay shaft so that the two gears can be located in close proximity. The input welded gear is precision-ground after the gear has been welded to the shaft.

公开(公告)号：US11267328B2

公开(公告)日：2022-03-08

申请号：US16388778

申请日：2019-04-18

Applicant: Dr. Ing. h.c.F. Porsche Aktiengesellschaft

Inventor： Immo Stache ,  Leo Spiegel ,  Henrik Schrage

IPC: B60K6/40 ,  F16H57/00 ,  F16H57/033 ,  B60K6/28 ,  B60K6/26 ,  B60K6/405 ,  B60K6/48

Abstract: A drive train (10) for driving a motor vehicle has a combustion engine (12) for providing purely mechanical drive for the motor vehicle. A transmission (16) can be coupled to the combustion engine (12) via a shaft unit (14) for transmitting torque between the motor vehicle transmission (16) and the combustion engine (12). A reserve volume (18) is between the combustion engine (12) and the motor vehicle transmission (16) and is penetrated by the shaft unit (14). The reserve volume (18) can accommodate a high-voltage electric machine for purely electric drive of the motor vehicle or a low-voltage electric machine (32) for applying an electrically generated assistance torque to the motor vehicle transmission (16). As a result, a hybrid functionality can be made available to an at least limited degree, with the result that a cost-effective drive train (10) configured for a hybrid motor vehicle is made possible.

公开(公告)号：US11231090B2

公开(公告)日：2022-01-25

申请号：US16774164

申请日：2020-01-28

Applicant: Eaton Cummins Automated Transmission Technologies, LLC

Inventor： Paul R. Peterson ,  Joseph D. Reynolds

IPC: F16H3/00 ,  F16H57/00 ,  F16H37/04 ,  F16H3/08 ,  F16H3/091 ,  F16H3/095 ,  F16H3/097 ,  F16H3/12

Abstract: A transmission includes a main shaft having two or more main shaft clutches that couple gears to at least one countershaft, and an automated manual transmission coupled to the main shaft via the at least one countershaft. The automated manual transmission includes a front input shaft coupled directly to a main clutch and having a first clutch coupleable to the at least one countershaft, and a rear input shaft coupled to the front input shaft and having a second clutch coupleable to the at least one countershaft. The automated manual transmission is operable to selectively engage the first clutch and the second clutch.

公开(公告)号：US11220751B2

公开(公告)日：2022-01-11

申请号：US16450664

申请日：2019-06-24

Applicant: Hamilton Sundstrand Corporation

Inventor： Jasen Deforge ,  Andy Mugrage

IPC: B33Y10/00 ,  F16H57/00 ,  C23C26/00 ,  C23C24/00 ,  F16H55/17 ,  B22F10/20 ,  B33Y80/00 ,  F16C3/02 ,  B22F10/25

Abstract: A method of manufacturing a gear shaft including depositing only a first material via directed energy deposition (DED), forming a first portion of the gear shaft via the depositing only the first material via directed energy deposition (DED), forming a transitioning portion of the gear shaft via depositing of a varying ratio of the first material with a second material via DED, and forming a second portion of the gear shaft via the depositing via DED of only the second material.

公开(公告)号：US11204079B2

公开(公告)日：2021-12-21

申请号：US16787600

申请日：2020-02-11

Applicant: Moventas Gears Oy

Inventor： Teemu Kukkola ,  Raine Lonnakko

IPC: F16H1/28 ,  F16H57/08 ,  F16H1/48 ,  F16H1/32 ,  F16H57/00

Abstract: A planetary gear includes a planet carrier, a sun wheel, a gear ring, and planet wheels meshing with the sun wheel and with the gear ring. Each planet wheel shaft of the planetary gear is arranged to rotatably support a respective planet wheel so that, in an unloaded situation, a geometric axis of rotation of the planet wheel is skewed (α) with respect to the axial direction (z) of the planetary gear. In a loaded situation, torque directed to the planet carrier causes twisting deformation in the planet carrier and thereby the skewedness of the geometric axis of rotation is at least partly eliminated by the twisting deformation. Thus, in the loaded situation, the direction of the geometric axis of rotation can be closer to the axial direction than in a planetary gear where there is no skewedness in an unloaded situation.

公开(公告)号：US20210387157A1

公开(公告)日：2021-12-16

申请号：US17459038

申请日：2021-08-27

Applicant: GAS TECHNOLOGIES LLC

Inventor： Evan VISSER ,  Walter BREIDENSTEIN

IPC: B01J19/24 ,  C10G5/06 ,  B64C27/12 ,  F16H57/00 ,  F16H57/025 ,  F16H57/04 ,  B01D3/00 ,  B01D3/14 ,  C07C41/56 ,  C07C41/58 ,  C10L1/02

Abstract: A method for forming poly(dimethoxymethane) includes a step of separating a formaldehyde-containing blend into a first bottom stream and a first top stream. The first formaldehyde-containing blend includes methanol, formaldehyde, and water while the first bottom stream includes water. The first top stream includes dimethoxymethane that is produced from the reaction between methanol and formaldehyde. The first top stream is separated into a second bottom stream and a second top stream. The second bottom stream includes poly(dimethoxymethane) while the second top stream includes dimethoxymethane, methanol, and ethanol. The second top stream is separated into a third bottom stream and a third top stream. Third bottom stream includes methanol and ethanol while the third top stream includes dimethoxymethane. The third top steam can be recycled to form additional poly(dimethoxymethane). A system that implements the method is also provided.

公开(公告)号：US11199252B2

公开(公告)日：2021-12-14

申请号：US16159865

申请日：2018-10-15

Applicant: CAMPAGNOLO S.r.l.

Inventor： Mirco Civiero

IPC: B62M9/10 ,  F16H57/00 ,  B60B27/02 ,  B60B27/04

Abstract: A mounting body and a cassette suitable for mounting on a bicycle rear wheel hub in combination with the body. The body has an inner radial portion for coupling with rear wheel hub and an outer radial portion for mounting the cassette and a portion with a plurality of attachment areas for attachment to a cassette. The cassette has an axial centering opening for centering on the mounting body and a plurality of cassette attachment areas that align with the mounting body attachment areas to unite the mounting body and cassette for transmission of pedaling torque.

公开(公告)号：US20210370765A1

公开(公告)日：2021-12-02

申请号：US17264109

申请日：2019-08-05

Applicant: Robert Bosch GmbH

Inventor： Andreas Meise ,  Marco Pech ,  Bartholomaeus Glinka ,  Markus Schmeink

IPC: B60K17/04 ,  F16H1/46 ,  F16H57/08 ,  F16H57/00 ,  F16H57/04

Abstract: A compact transmission, in particular for use within a single-wheel drive unit, includes a gear carrier fixed to the frame, which has a continuous central recess, and a main transmission having an internally toothed ring gear rotatably mounted on the outside of the gear carrier, externally toothed gears arranged in front of the one of the end faces of the gear carrier and meshing with the ring gear, and an input sun shaft. The compact transmission further includes a transmission pre-stage arranged within the central recess, and a pre-stage input shaft having an externally toothed pre-stage sun wheel, a pre-stage ring gear, and at least one pre-stage intermediate gear meshing with both the pre-stage sun wheel and with the pre-stage ring gear. An additional carrier is fastened to the transmission carrier, via which the pre-stage intermediate gears are held captively in the central recess.