Quotables
"The man with a new idea is a crank until the idea succeeds."
Samuel Clemens
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8151965 | Clutch arrangement A clutch arrangement having an input element and an output element that are rotatable relevant to one another, a friction clutch and a pump. The friction clutch couples the input element with the output element in dependence on a hydraulic pressure in a pressure spa... | 04/10/2012 |
| 7438167 | Coupling device and improved method of assembly thereof A coupling device (11) and method of assembly, the device being of the type including a plenum member (17) disposed at one axial end of the coupling housing (13,15), the method comprising configuring the plenum member (17) such that each ... | 10/21/2008 |
| 7410042 | Self-energizing pump for overrunning clutch A pump includes a cam member and an armature plate received on an input shaft rotatably supported with a differential housing of a clutch. The pump also includes a cylinder rod slidingly received in a chamber of a master cylinder to pressurize a hydraulic fluid. The... | 08/12/2008 |
| 7395909 | Dual function handlebar mounted actuator A dual function handlebar mounted actuator has first and second function operating devices arranged for activation by movement of a hand operated lever arrangement. The first and second functions operating devices are linked so that a combined first and second funct... | 07/08/2008 |
| 7361114 | Vehicle differential including pump with variable-engagement clutch A vehicle differential assembly is provided that includes a differential driven by an input and adapted to allow differing rotational speed between a pair of outputs. The differential includes a gear assembly connected to the outputs and a hydraulically-actuated clu... | 04/22/2008 |
| 7361121 | Control device and method for input clutch of work vehicle A controller serving as determination device determines whether or not a rising speed of the clutch pressure of the input clutch is less than a limit rising speed of the original pressure. A controller serving as original pressure control device adjusts the original... | 04/22/2008 |
| 7357236 | Pressure relief valve actuator for hydraulic torque coupling actuator A hydraulically actuated torque coupling assembly that has an actuator plate mechanism integrated within the pressure relief valve assembly. The actuator plate includes a valve closure member and two alignment pins. The valve closure member is disposed adjacent to a... | 04/15/2008 |
| 7356399 | Failure determination system for stepless speed changer and failure determination device for start clutch There is provided a failure determination system for a continuously variable transmission of a belt type, which is capable of determining failure of control valves for performing speed varying operation, and enhancing maintainability. An ECU controls a transmission ... | 04/08/2008 |
| 7353928 | Torque coupling assembly with venting passage A torque-coupling assembly comprises a hydraulic fluid reservoir provided for storing a supply of a hydraulic fluid, a hollow coupling casing rotatable by an outside drive torque, a hydraulic pump located within the coupling casing to generate a hydraulic pressure, ... | 04/08/2008 |
| 7353927 | Electro-magnetic actuator for torque coupling with variable pressure-control spool valve A torque-coupling assembly comprises a rotatable torque-coupling case, a friction clutch assembly for selectively engaging the torque-coupling case and an output shaft, a hydraulic pump for generating a hydraulic fluid pressure, a fluid control passage through which... | 04/08/2008 |
| 7347423 | Arrangement in connection with mechanical seal An arrangement in connection with a mechanical seal includes at least two sliding surfaces pressing against each other, which are arranged to seal a gap between a rotating and a non-rotating machining part, and mechanism for providing a sealing fluid flow cooling th... | 03/25/2008 |
| 7341136 | Hydraulic fluid plenum plate assembly A hydraulic fluid plenum plate assembly in a torque-coupling assembly, non-rotatably mounted to a rotatable coupling case thereof so as to form a plenum chamber between the plenum plate assembly and the coupling case. The coupling case has an inlet port fluidly conn... | 03/11/2008 |
| 7318509 | Temperature compensating hydraulic shear pump Pump pressure output can be controlled as temperature changes by a temperature compensation element. The present invention provides a shear channel constructed out of two or more materials enabling a pump to have a pressure profile as a function of temperature for a... | 01/15/2008 |
| 7318511 | Coupling device independent of differential speed A coupling device (11;111) including a rotatable housing (13,15;113) defining a clutch cavity and a clutch assembly (29;129) disposed therein. The housing defines an apply chamber (37;137) and a clutch apply member (39) disposed th... | 01/15/2008 |
| 7311187 | Dual clutch transmission clutch cooling circuit A hydraulic circuit for controlling the application of pressurized cooling fluid to the clutches of a dual clutch transmission including a cooling unit in fluid communication with a source of the pressurized cooling fluid and adapted to exchange heat from the coolin... | 12/25/2007 |
| 7266220 | Monitoring device, monitoring method and program for monitoring In a monitoring device for vehicles, an optical flow detection section determines an optical flow from an image taken with a camera. A background flow estimation section determines a background flow, which is a flow for the camera image under the assumption that the... | 09/04/2007 |
| 7249664 | Fan drive having pressure control (fluid) of a wet friction fan drive A hydraulically controlled fan drive system (12) having a method of engagement includes a housing assembly (20) containing a hydraulic fluid (48) and an engaging circuit (36). The engaging circuit (36) includes a pitot tube (152... | 07/31/2007 |
| 7234367 | Power take-off control system A control system and method for detecting variable load types and controlling the operation of a PTO clutch to effect engagement of the clutch with variable loads, and especially to more optimally effect the engagement of a clutch with a heavy load is disclosed. The... | 06/26/2007 |
| 7234366 | Power take-off control system A control system and method for detecting variable load types and controlling the operation of a PTO clutch to effect engagement of the clutch with variable loads, and especially to more optimally effect the engagement of a clutch with a very light load or an associ... | 06/26/2007 |
| 7217223 | Vehicle with clutch for transmission of torque output of motor A vehicle comprises a motor (4) and a wet clutch (12) for transmission of torque output of the motor to road wheels of the vehicle and transmission of road load from the road wheels to the motor (4). The wet clutch is disengaged in response to a... | 05/15/2007 |
| 7210376 | Device for transmitting torque between two rotatable, coaxial schaft members A device for transmitting torque between two rotatable, coaxial shaft members (1, 2) contains a clutch (35) between the two shaft members and engageable—to counteract rotational speed differential between the shaft members—by a hydraulic piston ( | 05/01/2007 |
| 7204170 | Device for transmitting torque between two rotatable, coaxial shaft members A device for transmitting torque between two rotatable, coaxial shaft members contains a clutch between the two shaft members and engageable to counteract rotational speed differential between the shaft members by a hydraulic piston under the control of an electrica... | 04/17/2007 |
| 7178656 | Hydraulic controlled fan clutch with integral cooling A hydraulically controlled fan drive system (12) having a method of engagement includes a housing assembly (20) containing a hydraulic fluid (48) and an engaging circuit (36). The engaging circuit (36) includes a pitot tube (152... | 02/20/2007 |
| 7160226 | Continuously variable transmission and method of operation thereof A continuously variable transmission is disclosed comprising a transmission input, a transmission output, and a continuously variable ratio unit (“variator”) arranged to be coupled between the transmission input (205) and output (240) by means of a... | 01/09/2007 |
| 7156771 | Clutch unit In a clutch unit, an engagement of a dog clutch can be restricted until a revolution of an input shaft and the revolution of an output shaft correspond to each other so as to be suitable for the engagement. The engagement can be effected when the revolution of the i... | 01/02/2007 |
| 7147092 | Multiple clutch unit A multiple clutch unit for a power train. The clutch includes a first clutch, particularly a multiple-disk clutch that is non-rotatably connected to a first shaft. A second clutch, particularly a multiple-disk clutch, is non-rotatably connected to a second shaft and... | 12/12/2006 |
| 7131201 | Coupling device and improved method of assembly thereof A coupling device (11) and method of assembly, the device being of the type including a plenum member (17) disposed at one axial end of the coupling housing (13,15), the method comprising configuring the plenum member (17) such that each ... | 11/07/2006 |
| 7127961 | Integrated control module for a dual clutch transmission An integrated control module for a dual clutch transmission that includes a valve body having an inlet, a plurality of outlets with a plurality of internal hydraulic passages disposed therebetween, and a hydraulic control assembly mounted to the valve body. The hydr... | 10/31/2006 |
| 7127342 | Driving force distribution control device for vehicle In a specific control state, confirmation is made whether or not the present torque limiter value exceeds a maximal value of an allowed torque value in the specific control state, and in the event that the present torque limiter value exceeds the maximal value of th... | 10/24/2006 |
| 7121390 | Method and apparatus for adapting a clutch torque Method for adapting a relationship stored in an electronic control unit, between a moment transmittable by a clutch, and a control variable for controlling an actuation unit of the clutch, which clutch is arranged in an automated motor vehicle drive train with a tor... | 10/17/2006 |
| 7111717 | Power transmission apparatus of four wheel drive apparatus A power transmission apparatus T of a four wheel drive vehicle is provided with a multiple disc clutch C engaged in accordance with a difference between rotational speeds of a front wheel Wf and a rear wheel Wr and a gear ratio of a second gear mechanism 5 fo... | 09/26/2006 |
| 7104376 | Clutch arrangement The invention relates to a clutch arrangement, in particular for a motor vehicle, comprising a housing arrangement which is filled or can be filled with fluid, at least one first friction member which is coupled with the housing arrangement for commonly rotating, at... | 09/12/2006 |
| 7077256 | Speed differential-dependent hydraulic clutch with a control valve A speed-difference-dependent hydraulic clutch comprises a drive housing (11), which rotates in a housing (20), a first shaft (21) which can be connected in a rotationally fixed manner to the drive housing, a second shaft (22) which is con... | 07/18/2006 |
| 7077783 | Method and device for operating a clutch A method and device for operating a clutch between an internal combustion engine and at least one driven wheel of a vehicle, a torque being transmitted between the internal combustion engine and the driven wheel by pressing the clutch together via an application for... | 07/18/2006 |
| 7063198 | Coupling device and improved fluid pressure system therefor A coupling device (11) of the type including a clutch assembly (29) actuation of which is responsive to fluid pressure in a clutch piston apply chamber (43), and a series of fluid passages (53,55,57,59) communicating the chamber to a cont... | 06/20/2006 |
| 7051857 | Coupling device and improved method of controlling torque transmission A method of controlling a pressure control valve assembly (69) to control a control pressure (43,71) in a system (11) including a source (47,49) of pressurized fluid. The control valve assembly is operable to vary the control pressure in ... | 05/30/2006 |
| 7048106 | Power take-off control system and method A PTO control system and method for engaging a PTO clutch of a vehicle or work machine such as, but not limited to, an agricultural tractor, that can effectively utilize both engine speed and PTO output speed values for determining a predicted and/or actual PTO load... | 05/23/2006 |
| 7044281 | Clutch engagement control system A clutch engagement control system 100 for engaging a friction clutch 1 by means of an actuator 3, can comprise a magnetostrictive sensor 71 for detecting the state of power transmission over the friction clutch 1, and can be confi... | 05/16/2006 |
| 7021445 | Low power hydraulic clutch actuation systems A torque transfer mechanism for controlling the magnitude of a clutch engagement force exerted on a clutch pack that is operably disposed between a first rotary member and a second rotary member includes a hydraulic clutch actuation system. The hydraulic clutch actu... | 04/04/2006 |
| 7011198 | Device for regulating rotational speed of the driven rotor of a viscosity coupling Regulating the rotational speed of the driven rotor of a viscosity coupling to a predetermined speed with a control circuit having a switching mechanism. When the speed drops below certain values, the speed is adjusted back to the predetermined value. ... | 03/14/2006 |
