With Speed Responsive Control Patents (Class 475/51)
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Patent number: 10953865Abstract: An assembly includes a front module housing an electric machine and an engine disconnect clutch, a transmission aft of the front module, a torque converter axially between the front module and the transmission, and a baffle radially between the torque converter and the transmission.Type: GrantFiled: January 19, 2018Date of Patent: March 23, 2021Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Steven Anatole Frait, John Edward Brevick
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Publication number: 20130017918Abstract: A continuously variable transmission system and a method of making a continuously variable transmission system is described. The present invention includes a gear set having at least a sun gear, one or more planetary gears, and a planetary gear carrier arm on which the one or more planetary gears are mounted for rotational movement. The sun gear and the one or more planetary gears are mounted for rotational engagement and movement with respect to each other, and one of the sun gears and the planetary gear carrier arm couples to an input shaft and another portion of the gear set couples to an output shaft to receive feedback. A rotary coupling unit having an input rotationally coupled to at least one of the one of the sun gears and the planetary gear carrier arm and an output that rotationally couples to the output shaft is also provided.Type: ApplicationFiled: September 17, 2012Publication date: January 17, 2013Applicant: ROCHESTER INSTITUTE OF TECHNOLOGYInventor: George Sutherland
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Publication number: 20130017917Abstract: A continuously variable transmission system and a method of making a continuously variable transmission system is described. The present invention includes a gear set having at least a sun gear, one or more planetary gears, and a planetary gear carrier arm on which the one or more planetary gears are mounted for rotational movement. The sun gear and the one or more planetary gears are mounted for rotational engagement and movement with respect to each other, and one of the sun gears and the planetary gear carrier arm couples to an input shaft and another portion of the gear set couples to an output shaft to receive feedback. A rotary coupling unit having an input rotationally coupled to at least one of the one of the sun gears and the planetary gear carrier arm and an output that rotationally couples to the output shaft is also provided.Type: ApplicationFiled: September 17, 2012Publication date: January 17, 2013Applicant: ROCHESTER INSTITUTE OF TECHNOLOGYInventor: George Sutherland
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Patent number: 7873457Abstract: A power transfer assembly for use in a four-wheel drive vehicle has a torque transfer mechanism equipped with a power-operated clutch actuator for controlling adaptive engagement of a friction clutch and a control system for controlling actuation of the clutch actuator. The control system and its method of operation are adapted to control actuation of the clutch actuator based on whether the vehicle is operating in an engine drive mode or an engine coast/braking mode.Type: GrantFiled: April 25, 2007Date of Patent: January 18, 2011Assignee: MAGNA Steyr Fahrzeugtechnik AG & Co KGInventors: Thomas Christöfl, Martin Parigger, Andreas Teuschel
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Publication number: 20020183155Abstract: A compact vehicle has a frame and an operating position thereon for at least one rider. An engine having a drive shaft is on the frame, as are a plurality of operational wheels. A transmission operatively couples the engine and the wheels. The transmission is a hydrostatic mechanical transmission with at least 2 operational modes.Type: ApplicationFiled: March 14, 2002Publication date: December 5, 2002Applicant: Sauer-Danfoss Inc.Inventor: Frederic W. Pollman
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Patent number: 5782715Abstract: A fan drive assembly includes a viscous coupling device (11), a radiator cooling fan (F), and a speed increasing mechanism (13), so that, at relatively low engine speeds, the fan (F) is driven at a speed ("overdrive") greater than the input speed to the coupling device (11), and at relatively higher engine speeds, the input torque is transmitted through the viscous coupling in the normal manner. In the subject embodiment, the speed increasing mechanism (13) is a planetary gear set, in which torque is transmitted from the input shaft (21) to the planet carrier (47), and in the overdrive condition, the sun gear (53) is grounded. The output of the planetary is the ring gear (59), which directly drives a housing (61) attached to both the housing (17) of the viscous coupling, as well as the cooling fan (F), thus effectively bypassing the viscous clutching action.Type: GrantFiled: August 29, 1996Date of Patent: July 21, 1998Assignee: Eaton CorporationInventors: Erlen B. Walton, James R. DeBrabander, David P. Godlew
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Patent number: 5557977Abstract: A system for powering various rotating vehicle accessories such as an alternator, a transmission fluid pump, a power-steering pump, and an air-conditioning compressor from the torque converter of an automatic transmission. The system utilizes the smooth speed characteristic of the automatic transmission torque converter to achieve an equally smooth accessory drive ratio transition. The system may also be used to power the accessories using a manual transmission.Type: GrantFiled: November 6, 1995Date of Patent: September 24, 1996Assignee: Ford Motor CompanyInventor: Thomas R. Stockton
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Patent number: 5279527Abstract: Improvements to a Shiftless, Continuously-Aligning Transmission (SCAT) to provide the turbine member of a torque converter with variable torque-increasing gearing and give it additional work advantage over a work load and eliminate a vast amount of slippage in the converter, the improvements embodying reactive planetary gears mechanically engaging the turbine to a sun gear of a planetary gear set; mobile ring gears controlled by a drive shell extending rearward and engaged to a mechanical ring gear modulator which controls the direction and speed of the planetary ring gears to vary the output torque being delivered by the converter; a two-section input turbine shaft; a clutch mechanism to engage the two turbine shaft sections; a clutchless, continuously engaged overdrive planetary unit; hydraulic controls; and electrical braking controls.Type: GrantFiled: April 17, 1992Date of Patent: January 18, 1994Inventor: Samuel J. Crockett
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Patent number: 5151067Abstract: A fully automatic transmission system for a vehicle eliminates the use of hydraulic or electromagnetic valves to control speed change, and instead utilizes clutches to change shift and disconnect power transmission, to minimize power consumption during idle shift, and to prevent slipping of the vehicle during climb on an upgrade, respectively, when no power is transmitted to the vehicle wheels, and without the need to brake the vehicle. When the revolving speed of the vehicle engine is slower that that of the transmission shaft, idle rotation of the system's clutch lining connector is automatically prevented.Type: GrantFiled: May 13, 1991Date of Patent: September 29, 1992Inventor: Chin-Fu Huong
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Patent number: 4932928Abstract: A continuously-variable transmission comprising at least two operatively interconnecting planetary gearsets that are interposed between a modified torque converter and a work load with the input power divided into two different input sources. A first input drive shaft engages the driven converter housing and delivers torque to the sun gears of the planetary gearsets and a coaxial hollow drive shaft engages a turbine member of the converter and delivers hydro-kinetic torque to drive the carrier of one of the planetary gearsets which is a mechanical torque/speed modulator used to control ring gears which are meshed with each planetary gearset. At least a second planetary gearset acts as a variable-ratio transmission that has its ring gear speed varied by the modulating ability of the other gearset.Type: GrantFiled: December 5, 1988Date of Patent: June 12, 1990Inventor: Samuel J. Crockett