35results about How to "Axial spacing reduced" patented technology

A control valve for a device for changing the control times of an internal combustion engine, having a substantially hollow-cylindrical valve housing, a control piston which is arranged within the valve housing and can be displaced axially, a pressure medium connection, two operating connections, and at least one tank connection. The operating connections, the pressure medium connection and the tank connection are formed as radial connections. It is possible for the operating connections to be connected to the pressure medium connection and the tank connection by axial displacement of the control piston within the valve housing. The operating connections are arranged adjacently.

The present invention relates to a bearing apparatus for a deep drilling apparatus by flushing liquid through the drill (1), the bearing apparatus having a plurality of radial external and radial internal bearing rings (6,7), wherein the radial external bearing ring (6) is coaxially arranged on the radial inner bearing ring (7), wherein radially between the bearing ring (6) is provided with a ball (8,9), the ball rolls within the bearing groove (6a, 7a), and wherein the bearing groove (6a, 7a) Axially bounded on both sides by a convex shoulder (6b, 7b), the convex shoulder having a convex shoulder surface (6c, 7c) stretched parallel to the longitudinal axis of the bearing (11). In order to shortly constitute such a bearing apparatus (1) in the axial extension of the axial direction is connected to at least one plain bearing (1), and in order to simplify the construction, the radial external bearing ring (6) of the convex shoulder surface (6c, 7c) and the radial internal bearing ring (7) of the convex shoulder surface (7c) of the outer diameter (Da) is designed to be such that the convex shoulder surface (6c, 7c) undertakes the function of a parallel radial plain bearing having radial clearance (S).

A button-fastening upper die includes a die body, a button-holding member and a cylindrical elastic member arranged between the die body and the button-holding member. By providing the elastic member with an annular recess recessed radially outward from the inner surface e.g. at the middle of the surface, the elastic member is sectioned into a thin-walled section located radially outward from the recess and two or more thick-walled sections remaining above and below the recess and the thin-walled section.

A stator vane of a turbine of a gas turbine engine, including an outer platform and an inner platform between which there extends an outer wall forming an outer skin, wherein it includes an inner wall, forming an inner skin, facing the outer wall so as to define an inter-skin cavity between the outer wall and the inner wall, the inner wall including a plurality of cooling orifices for impingement cooling of the outer wall, the outer wall and inner wall being produced by additive manufacturing.

The invention provides a wind driven generator and a wind generating set. The wind driven generator comprises a fixed shaft, a movable shaft, a stator and a rotor. The movable shaft is arranged on the fixed shaft in a sleeving manner through a bearing assembly and can rotate relative to the fixed shaft; the bearing assembly comprises a first bearing, the inner ring of the first bearing is fixedly arranged on the fixed shaft, and the movable shaft is fixedly connected to the outer ring of the first bearing; the stator is fixedly connected to the inner ring of the first bearing; and the rotor is fixedly connected to the movable shaft, and the position of the rotor on the movable shaft corresponds to the first bearing in the radial direction. The wind driven generator can well ensure the air gap uniformity in the running process, and the weight of the fixed shaft does not need to be increased.

The invention relates to a rotating electrical machine having a stator (1), a rotor (8) and a hydrodynamic machine (7) provided for cooling the rotating electrical machine on one side, wherein the stator (1) has a stator lamination stack (2), front stator winding head (5a) and rear stator winding head (5b), wherein the rotor (8) has a rear rotor winding head (6b). In order to improve cooling in the case of one-sided ventilation compared to the prior art, in particular with regard to a uniform temperature distribution, it is proposed that the stator lamination pack (2) has channels (9a, 9b) extending in the axial direction, which are provided for cooling of the rear stator winding head (5b) by means of a second cooling air flow (14) generated by the hydrodynamic machine (7), wherein at least one first channel (9a) is provided for the second cooling air flow (14) generated by the hydrodynamic machine (7) The cooling air flow (14) is directed through the stator lamination stack (2) to the rear stator winding head (5b), where the air is fixed on the side of the stator lamination stack (2) on the side of the rear stator winding head (5b) A guide device (4) provided for routing a second cooling air flow (14) via the rear stator winding head (5b), wherein at least one second channel (9b) is provided for routing the second cooling air flow ( 14) Leading from the rear stator winding head (5b) back through the stator lamination stack (2), wherein at least two radial cutouts (11) arranged in the axial direction in each case are provided for cooling the stator lamination stack (2 ), in particular the stator winding and / or the rear rotor winding head (6b), wherein the radial cutouts are arranged radially in the passages (9a, 9b) extending in the axial direction and between the stator laminations (2) and the rotor (8 ) between the air gaps (3) and connect the two to each other, wherein the axial spacing between the radial cutouts (11) is towards the side of the stator lamination stack (2) facing away from the hydrodynamic machine (7) Smaller and set to compensate for temperature gradients created by one-sided cooling.

The invention concerns a rod tensioning device having a first actuator, at least a second actuator and a tubular support sleeve dedicated to radially surround a threaded rod. Each of the actuators provides a cylinder, and a piston sliding in the cylinder and forming with the cylinder an annular chamber dedicated to be supplied with pressurized fluid. According to the invention, the at least second actuator is temporary axially arranged between the first actuator and the tubular support sleeve for a temporary blockwise assembly, the pistons of two axially adjacent actuators being indexed in rotation together.

A button-fastening upper die includes a die body, a button-holding member and a cylindrical elastic member arranged between the die body and the button-holding member. By providing the elastic member with an annular recess recessed radially outward from the inner surface e.g. at the middle of the surface, the elastic member is sectioned into a thin-walled section located radially outward from the recess and two or more thick-walled sections remaining above and below the recess and the thin-walled section.