1546results about How to "Shorten the axial length" patented technology

Disclosed is a surgical instrument comprising an instrument handle, an instrument shaft shaft having a distal end and a proximal end at which the instrument handle is linked, an instrument head, pivotally linked to the distal end of the instrument shaft via a hinge shaft or pins and comprising an effector rotatably supported in said instrument head around its longitudinal axis as well as a surgical tool held by said effector, and a mechanical transmission system at least partially arranged within said instrument shaft transmitting mechanical operation signals from said instrument handle to said instrument head at least for pivoting and/or rotating motions. A bending flexible as well as rotating rigid, hollow spindle is arranged bypassing said hinge shaft or pins and directly connecting said effector with the mechanical transmission system for transmitting at least rotating signals via said spindle to said effector.

A planetary-gear-type multiple-step transmission including a stationary member, an input rotary member, an output rotary member, and first and second transmission units. The first transmission unit transmits a rotary motion from an input rotary member to the second transmission unit through first and second intermediate transmitting paths such that a speed of the rotary motion transmitted through the second intermediate transmitting path is lower than that of the rotary motion transmitted through the first intermediate transmitting path. The second transmission unit constitutes first, second, third, fourth and fifth rotary elements, each of which is provided by at least one of sun gears, carriers and ring gears of three planetary gear sets. The first rotary element is selectively connected to the second intermediate transmitting path, while being selectively connected to the stationary member. The second rotary element is selectively connected to the first intermediate transmitting path. The third rotary element is selectively connected to the first intermediate transmitting path, while being selectively connected to the stationary member. The fourth rotary element is connected to the output rotary member. The fifth rotary element is selectively connected to the second intermediate transmitting path.

A blade ring for a gas turbine engine, especially an aircraft engine, may be a rotor ring or disk or a stator ring. At least one blade (9) forming an airfoil (2) is secured to at least one carrier ring (1, 10). The blade (9) is fixed to the carrier ring or disk or shroud (1, 10), either through a platform (4) forming a foot portion of the blade or through a neighboring transitional section (12) forming part of the carrier ring or disk or shroud. The mechanical stress and the overall axial length of the blade ring are reduced by a transition fillet (6) between the surfaces (3) of the airfoil (2) and the platform (4) or the peripheral section (12). The transition fillet (6) has a curve (7) that narrows toward the platform (4) or peripheral section (12) with radii (R1, R2, R3) that have different centers and are largest close to the blade surface (3, 8) and smallest close to the ring surface. This fillet construction extends all around the blade and relative to an inner ring or disk and/or an outer ring.

The present invention generally relates to methods for drilling a subsea wellbore and landing a casing mandrel in a subsea wellhead. In one aspect, a method of drilling a subsea wellbore with casing is provided. The method includes placing a string of casing with a drill bit at the lower end thereof in a riser system and urging the string of casing axially downward. The method further includes reducing the axial length of the string of casing to land a wellbore component in a subsea wellhead. In this manner, the wellbore is formed and lined with the string of casing in a single run. In another aspect, a method of forming and lining a subsea wellbore is provided. In yet another aspect, a method of landing a casing mandrel in a casing hanger disposed in a subsea wellhead is provided.

A catheter includes a flexible tubing having a proximal end and a distal end. The catheter also includes an electrode assembly attached to the distal end of the flexible tubing and including a first magnet therein. The electrode assembly including an electrically conductive tip electrode and an electrically nonconductive coupler which is connected between the tip electrode and the distal end of the flexible tubing. The electrically conductive tip electrode comprises a hollow elongated tip electrode including a sidewall provided with one or more elongated gaps extending through the sidewall. The one or more elongated gaps providing flexibility in the sidewall for bending movement of the tip electrode relative to a longitudinal axis of the catheter body. The first magnet is responsive to an external magnetic field to selectively position and guide the electrode assembly within a body of a patient.

Devices, delivery systems and techniques for an occlusion device for the closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. The devices, delivery systems and techniques relate to, but are not limited to, a patent foramen ovale (PFO) occluder made from a substantially cylindrical form. An occluder having a distal side and a proximal side, with a catch system for securing the deployed configuration, is introduced into the treatment site by a delivery sheath. In one aspect, the occluder has an adjustable length center joint that allows the device to fit a particular septal defect. In some embodiments, the occluder includes a catch member that holds the occluder in the deployed, expanded profile configuration. In one aspect, the catch member also has an adjustable length.

Devices, delivery systems, and delivery techniques for an occlusion device for closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. Specifically, an occluder with a catch member that holds the occluder in the deployed, expanded profile configuration is provided within a delivery sheath. The proximal end of the catch member includes a flap that when positioned proximal to the proximal end of the occluder holds the occluder in the expanded profile configuration. The flap is sized and formed of a material that allows the flap to deform by bending back and forth in axial and radial directions. In certain embodiments, the flap has segments divided by notches. In certain embodiments, deforming the flap in the proximal direction requires a different amount of force than deforming the flap in the distal direction.

A motor/generator is arranged radially outward of a middle portion of a front cover of a torque converter so that at least a part of the motor/generator axially overlaps the torque converter, with a predetermined gap (C) between the front cover and the rotor of the motor/generator. The rotor of the motor/generator is supported by either the torque converter or an engine crankshaft or by any two of the torque converter, a motor housing and the crankshaft. The rotor is not affected by the torque converter and the efficiency of the motor is not reduced.

A quadrifilar antenna having helical windings is fed by a phase shift feed network, each winding having an open circuit termination element, the phase shift feeding network having forward directional phase shift paths from a feed input to phase shift feed output ports, and having a first reverse directional transmission path from one or more of the phase shift feed output ports back to a first isolation port, and a second reverse directional transmission path from another one or more of the phase shift feed output ports back to a second isolation port, the first and second isolation ports isolated from the forward directional phase shift paths, and a differential termination impedance, floating from ground, connected the first and second isolation ports. Optionally, the differential termination impedance is frequency selective.

A hybrid vehicle having an internal combustion engine, a generator connected with an output shaft extending from the internal combustion engine, an electric motor axially aligned with the output shaft, an output gear assembly connected to an output shaft driven by the rotor of the electric motor and positioned between the generator and the electric motor, a clutch adapted to connect and disconnect the generator to/from the output gear assembly, a differential gear unit, and a counter shaft oriented in parallel the output shaft driven by the rotor.

A compact gear reducer electric motor assembly with an internal brake disclosed and claimed wherein a high speed electric motor is interconnected with a gear reducer having substantial gear reduction. The assembly includes a spindle, a brake mounted substantially within said high speed electric motor and operable against a spring biasing said brake into engagement with ground. The brake is electrically actuated to permit transmission of energy to the gear reducer. The gear reducer includes an input, intermediate and output planetary stages. The input and intermediate stages residing within the spindle, and, the output planetary stage drives an output ring gear. Releasing means for releasing the output ring gear from the brake allowing rotation thereof.

A drive device for a vehicle configured between an internal combustion engine and a wheel. The drive device includes a rotary electric machine, and an engagement device connecting the drive device to the engine by a fluid coupling using hydraulic pressure. A case houses at least a portion of the drive device and includes a support wall extending radially, and a cylindrical projecting portion projecting from the support wall toward a side in an axial second direction that is in a direction opposite to the axial first direction. The engagement device includes an operating oil pressure chamber supplied with the hydraulic pressure. A rotor member of the rotary electric machine is radially supported by the cylindrical projecting portion in a rotatable state via a support bearing. The cylindrical projecting portion is formed with an operating oil supply passage supplying oil to the operating oil pressure chamber.

A hub unit bearing assembly includes a tapered roller bearing including an inner race (3), an outer race (4) having a fixture (4a) defined therein so as to extend radially outwardly therefrom, and a multiplicity of rollers (5) retained in a circumferential row by a cage (6) and rollingly positioned between the inner race (3) and the outer race (4). A hub (2) including the inner race (3) on a portion of an outer periphery of said hub (2). The inner race (3) is a member either integral with the hub (2) or separated from the hub (2). The cage (6) rotatably accommodates the respective rollers (5) in the form as retained thereby prior to assemblage of the cage (6) with the rollers (5) into the roller bearing. The cage (6) and the rollers (5) are, after the rollers have been mounted in the cage (6), inserted in between the inner race (3) and the outer race (4).

The invention discloses a plate-to-plate intensive assemblage coaxial connector, comprising two sockets and a commutator. A first flange and a second flange with different axial lengths are arranged on the peripheral planes of the two ends of the commutator; a groove is arranged on the side wall at the bottom of the opening of the socket; when the commutator is inserted into the socket, the first flange is located in the groove, the second flange clings to the inner side wall of the corresponding socket opening. Because the first flange, the second flange and the groove matching the first flange are provided, the plugging and pulling forces become varied, the commutator is left on one of the circuit boards when being pulled away, thereby, the operation time is saved and ineffective plugging and pulling actions reduced; in addition, the lockup between the shells is used to largely increase the plugging and adapting frequency. By taking advantage of the clearance between the commutator shell and the insulator thereof, the commutator deviates in the opening upon incorrect medium condition, as a result, the position is corrected automatically and the purpose of direct plugging and adapting is achieved.

In a variable damper using magneto-rheological fluid that comprises a cylinder (12) filled with the fluid, a piston (16) slidably received in the cylinder and including an inner yoke (32; 62; 126), an outer yoke (31; 64, 65; 140) and a coil (34; 130), a piston rod (13) having an inner end attached to the piston and an outer end extending out of the cylinder and a magnetic valve formed in a gap between the inner and outer yokes, at least one of the outer yoke and inner yoke consisting of at least two parts that are joined to each other in an axial direction. The two piece arrangement of the inner yoke or outer yoke allows the end plates to be omitted because the gap spacer can be installed without requiring end plates, and this contributes to a compact design and a favorable damping property. Also, the manufacturing and servicing of the damper can be simplified. When end plates (134) are used, the freedom in the positioning of the coil is increased.

An in-wheel motor drive device is attached to an inner side of a wheel of a vehicle wheel and drives the vehicle wheel. The in-wheel motor drive device includes a rotating electric machine; a transmission mechanism that transmits the rotation of the rotating electric machine; a speed reducing mechanism that reduces in speed the rotation transmitted by the transmission mechanism; and an output shaft that outputs the reduced-speed rotation of the speed reducing mechanism to the wheel. The speed reducing mechanism and the output shaft are disposed on a first axis coaxial with a center of the wheel. The rotating electric machine is disposed on a second axis parallel to the first axis, and the rotating electric machine and the speed reducing mechanism are positioned in a radial cross section perpendicular to the first axis and the second axis.

The invention relates to a permanent magnet bias inner rotor radial magnetism bearing that is made up of out magnetizer, out magnetism separator, exciting winding, inner magnetizer, rotor iron core. Four stator iron cores form four magnetic poles and are connected with each other by out magnetism separator. Eight stator iron core forms eight magnetic poles and every stator magnetic pole has exciting winding. Outside the stator iron core is out magnetizer that is connected to stator iron core. The permanent magnet is located between the two out magnetizers. Inner the stator iron core is rotator iron core. And there is clearance between the inner surface of the stator iron core and the out surface of the rotator iron core. The second clearance exists between the out magnetizer and the permanent magnet to form electric excitation circuit. The invention has the advantage of reliability and easy to be controlled.