公开(公告)号：EP1552177A1

公开(公告)日：2005-07-13

申请号：EP03808014.9

申请日：2003-01-29

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: F16D35/02

CPC classification number: F16D37/02 ,  F16D2037/002

Abstract: A clutch (A,B) includes a cam (20,70) and a rotor (22,74), both of which revolve around a common axis (X). The cam has a camming surface (30,72) provided with lobes (32), whereas the rotor carries pistons (26,80) which bear against the camming surface of the cam. The pistons project from piston cavities (40,42; 76) in the rotor and those cavities communicate through a connecting cavity (44,78), to thereby form a fluid chamber (56,82) of constant volume which contains a magneto-rheological fluid (28,84). An electrical coil controls the viscosity of the rheological fluid. When the viscosity is low, the pistons will move inwardly and outwardly on the rotor as the camming surface passes over them and no torque will transfer between the cam and rotor. However, when the fluid is viscous, the fluid will impede displacement of the pistons in the piston cavities, and the pistons will grip the camming surface sufficiently to enable torque to transfer between the cam and rotor.

公开(公告)号：EP1451032A1

公开(公告)日：2004-09-01

申请号：EP02752635.9

申请日：2002-07-30

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: B60K17/35 ,  F16D37/02

CPC classification number: B60K17/35 ,  F16D37/02 ,  F16D2037/002 ,  F16H48/34 ,  F16H2048/04

Abstract: A torque coupling (14) connects the secondary driving wheels (4) of an automotive vehicle (A) indirectly to the power unit (6) of the vehicle (A) through a variable torque coupling (14), while the primary driving wheels (2) on the vehicle (A) are connected directly to the power unit (6). The coupling (14) compensates for variations in the angular velocity of the primary and secondary wheels (2 & 4) while still transferring torque to the secondary wheels (4). The coupling (14) includes a magnetic particle clutch (38) organized about an axis (X) and a planetary gear set (36) organized about the same axis (X). The coupling (14) has two paths through which the torque is transferred, one a mechanical path and the other a clutch path. Most of the torque is transferred through the mechanical path, while the clutch path accommodates for slippage and controls the proportion of torque delivered to the secondary wheels (4), with the control being solely dependent on the magnitude of the current directed through the clutch (38).

公开(公告)号：EP2097275A1

公开(公告)日：2009-09-09

申请号：EP07869223.3

申请日：2007-12-13

Applicant: The Timken Company

Inventor： JOKI, Mark A. ,  WARREN, Scott A. ,  ROMAN, Steven A. ,  DOUGHERTY, John D. ,  GRADU, Mircea

IPC: B60B27/00

CPC classification number: B60B27/0084 ,  B60B3/04 ,  B60B27/0005 ,  B60B27/001 ,  B60B27/0068 ,  B60G2400/208 ,  B60G2400/25 ,  B60G2400/60 ,  B60G2400/64 ,  B60G2400/73 ,  F16C19/185 ,  F16C19/386 ,  F16C19/522 ,  F16C33/723 ,  F16C41/007 ,  F16C2326/02

Abstract: An automotive vehicle has road wheels that are coupled to suspension uprights of the vehicle through wheel ends that have the capacity to monitor lateral loads that act on the road wheels at tire patches where the road wheels contact a road surface. Each wheel end offsets displacements that would be produced within the wheel end by vertical loads with displacements that would be produced by moments induced by the vertical loads, so that the remaining displacements within the wheel end reflect essentially lateral loads exerted at the tire patch. The wheel end contains a sensor and a target that the sensor monitors to detect the presence and magnitude of the displacements and hence the magnitude and direction of the lateral force at the tire patch. The sensor may also monitor angular velocity, angular position, and temperature.

公开(公告)号：EP1552177B1

公开(公告)日：2008-05-28

申请号：EP03808014.9

申请日：2003-01-29

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: F16D35/02

CPC classification number: F16D37/02 ,  F16D2037/002

Abstract: A clutch (A,B) includes a cam (20,70) and a rotor (22,74), both of which revolve around a common axis (X). The cam has a camming surface (30,72) provided with lobes (32), whereas the rotor carries pistons (26,80) which bear against the camming surface of the cam. The pistons project from piston cavities (40,42; 76) in the rotor and those cavities communicate through a connecting cavity (44,78), to thereby form a fluid chamber (56,82) of constant volume which contains a magneto-rheological fluid (28,84). An electrical coil controls the viscosity of the rheological fluid. When the viscosity is low, the pistons will move inwardly and outwardly on the rotor as the camming surface passes over them and no torque will transfer between the cam and rotor. However, when the fluid is viscous, the fluid will impede displacement of the pistons in the piston cavities, and the pistons will grip the camming surface sufficiently to enable torque to transfer between the cam and rotor.

公开(公告)号：EP1525111A1

公开(公告)日：2005-04-27

申请号：EP03771600.8

申请日：2003-07-10

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: B60K17/35

CPC classification number: B60K17/342 ,  B60K17/344 ,  B60K17/35

Abstract: A power transmission system coupling (100) configured to provide a responsive and controllable clutch (110) using a torque split arrangement including a planetary gear set (106) for torque modulation, together with a locking device (134) to maximize torque transfer capability when modulation is not required.

公开(公告)号：EP1266148A1

公开(公告)日：2002-12-18

申请号：EP01928296.1

申请日：2001-03-08

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: F16C19/52 ,  F16C35/067 ,  F16C19/38

CPC classification number: F16H57/0421 ,  F16C19/386 ,  F16C19/525 ,  F16C35/067 ,  F16C2226/60 ,  F16C2361/61 ,  F16H1/14 ,  F16H57/0469 ,  F16H2048/423 ,  Y10S384/905

Abstract: A shaft (S) rotates within a housing (H, J) on a double row tapered roller bearing (B, C) and remains extremely stable at all temperatures, even though the housing is formed from a light weight metal having a significantly greater coefficient of thermal expansion than the metal of the bearing. To this end, the housing contains a bore (16, 100) defined by a cylindrical surface (18, 102) and a conical surface (20, 104) which flares away from the cylindrical surface and opens out of one face of the housing. The bearing has two cones (30, 32) which surround the shaft, a unitary or double cup (34, 116) which fits into the bore of the housing, and tapered rollers (36) arranged in two rows between the cones and cup. The double cup on its exterior has a cylindrical surface (58, 118) which fits into the cylindrical surface of the housing bore and a flange (60, 120) provided with a beveled face (64, 124) which is against the conical surface of the housing bore. In addition, the cup has a threaded end (62, 122) which projects axially beyond the cylindrical surface of the cup engages a nut (66, 106) that is on the housing at the end of the cylindrical surface of the bore. The nut draws the beveled surface of the cup flange tightly against the conical surface of the housing bore. With an elevation in temperature, the housing expands axially and causes the flange to seat even more tightly against the conical surface of the housing, so that the cup remains firmly positioned, both radially and axially, in the housing, even though the cylindrical surface of the housing bore enlarges with respect to the cylindrical surface on the housing.

Abstract translation: 轴在双列圆锥滚子轴承内的壳体内旋转，并且在所有温度下保持非常稳定，即使壳体由具有比轴承的金属显着更大的热膨胀系数的轻质金属形成。 为此，壳体包含由圆柱形表面限定的孔和圆锥形表面，该圆锥形表面从圆柱形表面张开并且从壳体的一个面打开。 轴承具有两个围绕轴的锥体，一个或多个杯子，其配合到壳体的孔中，并且在锥体和杯之间布置成两排的锥形辊。 其外部的双杯具有圆柱形表面，其配合到壳体孔的圆柱形表面中，并且具有凸缘，凸缘设置有抵靠住壳体孔的锥形表面的斜面。 此外，杯具有轴向突出超过杯的圆柱形表面的螺纹端接合位于孔的圆柱形表面端部处的壳体上的螺母。 螺母将杯形凸缘的斜面紧紧地压靠在壳体孔的锥形表面上。 随着温度升高，壳体轴向膨胀并且使得凸缘更紧密地抵靠壳体的锥形表面，使得杯子在径向和轴向上保持牢固地定位在壳体中，即使圆柱形表面 壳体相对于壳体上的圆柱形表面增大。

公开(公告)号：EP1912820A1

公开(公告)日：2008-04-23

申请号：EP06801098.2

申请日：2006-08-09

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: B60K17/35

CPC classification number: B60K23/0808 ,  B60K17/35 ,  Y02T10/7258

Abstract: A torque bias coupling (50) for proportionally transferring driving torque to a rear secondary axle (18) of a front wheel drive based all-wheel-drive vehicle platform includes a double-planetary gear set (54) organized about a common axis (X) and a magnetic particle brake (56). The magnetic particle brake (56) is operatively coupled to a planet carrier (62) of the double-planetary gear set (54) to selectively apply a rotational reaction force there to. Regulation of the rotational reaction force enables selective transfer of torque from the vehicle driving motor (6) to the rear secondary axle (18) via the torque bias coupling (50). The configuration of the double-planetary gear set (54) enables the secondary rear axle (18) to be driven in an over-speed condition relative to the front primary axle (14) in order to improve vehicle dynamics.

公开(公告)号：EP1817197A1

公开(公告)日：2007-08-15

申请号：EP05852344.0

申请日：2005-11-29

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: B60K17/04 ,  B60K17/02 ,  B60K7/00 ,  B60K17/16

CPC classification number: B60K17/145 ,  B60K17/046 ,  B60K2001/001 ,  F16H3/724 ,  F16H48/30

Abstract: An electric drive axle (B,C), which is located between and powers the left and right drive wheels (2,4) of an automotive vehicle (A), includes an electric motor (22,84) and left and right torque couplings (24,26). Torque developed by the motor transfers through the torque couplings to axle shafts (10,12) which are connected to the drive wheels. Each torque coupling includes a magnetic particle clutch (42) and a planetary set (44) organized such that the current flowing through the electromagnet of the clutch controls the torque delivered through the coupling. The magnetic particle clutches also accommodate slippage so that the drive wheels may rotate at different angular velocities.

公开(公告)号：EP1451032B1

公开(公告)日：2006-09-13

申请号：EP02752635.9

申请日：2002-07-30

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: B60K17/35 ,  F16D37/02

CPC classification number: B60K17/35 ,  F16D37/02 ,  F16D2037/002 ,  F16H48/34 ,  F16H2048/04

Abstract: A torque coupling (14) connects the secondary driving wheels (4) of an automotive vehicle (A) indirectly to the power unit (6) of the vehicle (A) through a variable torque coupling (14), while the primary driving wheels (2) on the vehicle (A) are connected directly to the power unit (6). The coupling (14) compensates for variations in the angular velocity of the primary and secondary wheels (2 & 4) while still transferring torque to the secondary wheels (4). The coupling (14) includes a magnetic particle clutch (38) organized about an axis (X) and a planetary gear set (36) organized about the same axis (X). The coupling (14) has two paths through which the torque is transferred, one a mechanical path and the other a clutch path. Most of the torque is transferred through the mechanical path, while the clutch path accommodates for slippage and controls the proportion of torque delivered to the secondary wheels (4), with the control being solely dependent on the magnitude of the current directed through the clutch (38).

公开(公告)号：EP1488135A2

公开(公告)日：2004-12-22

申请号：EP03716795.4

申请日：2003-03-21

Applicant: THE TIMKEN COMPANY

Inventor： GRADU, Mircea

IPC: F16H3/72 ,  B60K23/08

CPC classification number: B60K23/0808 ,  B60K17/35 ,  F16H3/721 ,  F16H2048/423

Abstract: An axle center (C) for delivering engine torque to two axle shafts (18) which in turn transfer the torque to road wheels (4) includes a torque coupling (50) though which the torque is transferred to the axle shafts. The coupling includes a magnetic particle clutch (56) and a planetary set (54) organized about a common axis (X) and coupled together such that two paths - a mechanical path and a clutch path - exist in the coupling for transferring torque through it, with the amount of torque transferred being dependent solely on the current in the magnetic particle clutch. A single torque coupling may be located where torque is delivered to the axle center or two torque couplings may be located at and connected to the two axle shafts, one for each shaft.