Abstract: Among first and second stators of a torque converter supported on a fixed part by a one-way clutch corresponding to the stators, the number of second stator blades of the second stator on the downstream side in the direction of flow of oils larger than the number of first blades of the first stator on the upstream side, and the maximum value t2 for blade thickness of the second stator blade is smaller than the minimum value t1 for blade thickness of the first stator blade. Therefore, it is possible to ensure that there is a sufficient gap (?) between a trailing edge of the first stator blade and a leading of the second stator blade, thus preventing the flow of oil from being stopped by the gap (?), and it is possible to align effectively the flow of oil by means of the second stator blades.

Abstract: Dampers for fan spinners of aircraft engines are disclosed. An example fan module for a gas turbine engine may include a fan disk; fan blades mounted to the fan disk and extending radially therefrom; a fan spinner operatively coupled to the fan disk at an axially upstream position; and/or one or more elastic vibration dampers operatively interposing the fan spinner and the fan disk. The elastic vibration dampers may be disposed circumferentially around an interface between the fan spinner and the fan disk and may be compressed axially and/or radially.

Abstract: An air induction system for a power source including a first compressor and a second compressor is disclosed. The air induction system includes an air feed passageway that directs compressed air from the second compressor to an area between a compressor wheel and a center housing in the first compressor to reduce oil consumption in the first compressor.

Abstract: A seal assembly between a hot gas path and a disc cavity in a turbine engine includes a non-rotatable vane assembly including a row of vanes and an inner shroud, a rotatable blade assembly axially adjacent to the vane assembly and including a row of blades and a turbine disc that forms a part of a turbine rotor, and an annular wing member located radially between the hot gas path and the disc cavity. The wing member extends generally axially from the blade assembly toward the vane assembly and includes a plurality of circumferentially spaced apart flow passages extending therethrough from a radially inner surface thereof to a radially outer surface thereof. The flow passages each include a portion that is curved as the passage extends radially outwardly to effect a scooping of cooling fluid from the disc cavity into the flow passages and toward the hot gas path.

Abstract: The invention relates to a runner for a direct-connected low-speed small mixed flow type water turbine applied in a hydrodynamic energy-saving cooling tower, which comprises an upper crown (1), a lower ring (3) and curved surface blades (2) mounted between the upper crown (1) and the lower ring (3), and is characterized in that the ratio of the height h of water inlet edge (4) of each blade (2) to the diameter D1 corresponding to the water inlet edge (4) is 0.18-0.22, the ratio of the overall height H of the blades (2) to the diameter D1 is 0.35-0.42, the ratio of the diameter D2 corresponding to the intersection point A of each water outlet edge (4) and the lower ring (3) to the diameter D1 is 0.4-0.6, the ratio of the diameter D3 corresponding to the intersection point B of each water outlet edge (4) and the upper crown to the diameter D1 is 0.3-0.45, the ratio of the diameter D4 in the position of a water drain round platform on the upper crown (1) to the diameter D1 is 0.1-0.

Abstract: A propeller for an aircraft turbine engine, comprising means for adjusting the pitch of the blades comprising a hydraulic actuator borne by the rotor and including a cavity and a piston displaceable in said cavity and dividing said cavity into two chambers, as well as means for limiting the stroke of the piston in order to prevent displacement of said blades in a predetermined direction beyond a predetermined limiting pitch angle, and comprising hydraulic connection means with which both chambers may be put into communication with each other as soon as the pitch angle of the blades becomes equal to said predetermined limiting pitch angle during the displacement of said blades in said predetermined direction, these hydraulic connection means being borne by said rotor of the propeller.

Abstract: A number of variations may include a product for use with a turbocharger system may include a housing with a rotor wheel rotatable relative to the housing. The rotor wheel may have a front face with blades disposed in a gas stream and a back wall facing the housing. The rotor wheel may generate thrust loads. A thrust bearing may be positioned on the housing and may face the back wall. The thrust bearing may be configured to directly absorb the thrust loads from the rotor wheel.

Abstract: A wind energy system comprising a wind turbine comprising a cowling surrounded by a diffuser and a plurality of inner rotor blades located inside of the cowling that rotate about an inner hub, a plurality of outer rotor blades positioned between the diffuser and the cowling that are counter-rotating relative to the plurality of inner rotor blades, a drive mechanism located within the inner rotor hub, a dynamic telescopic tower, and a tower support that connects the wind turbine to the dynamic telescopic tower.

Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.

Abstract: An example turbomachine system includes a first variable outer air seal including at least one channel. The first variable outer air seal configured to selectively communicate a fluid in response to movement of a second variable outer air seal relative to the first variable outer air seal. An example fluid control method includes selectively covering a channel inlet using a variable outer air seal to control flow through the channel.

Abstract: In a rocking piston type compressor, a piston rod 11 is rockingly slidable within a cylinder 10. The compressor is provided with a lip ring 20 and an expansion member 30. The lip ring 20 is configured to seal between the cylinder 10 and piston rod 11. The lip ring 20 is provided on a leading end portion 13 of the piston rod 11 and includes a bottom portion 21 in a circular plate shape and a lip portion 22 extending from an entire peripheral edge of the bottom portion 21 to an upper side in a height direction. The expansion member 30 is provided on an inside of the lip portion 22 and configured to outwardly expand the lip portion 22 at a side of an upper portion in the height direction of the lip portion.

Abstract: Certain embodiments of the disclosure may include systems, methods and apparatus for operating and validating a compressor. According to an example embodiment of the disclosure, a method is provided for validating compressor operation. The method can include receiving compressor operating parameter data from a plurality of sensors; and adjusting a portion of a variable flow area downstream of a compressor discharge to achieve a desired compressor pressure ratio.

Abstract: The invention relates to a rotor for a wind turbine of the type having a rotor hub (8) and a set of rotor blades (9). Each rotor blade (9) is rotatably mounted on the rotor hub (8) for rotation about a blade axis (11). A threaded spindle mechanism (13) interconnects the rotor blade (9) and the rotor hub (8). The threaded spindle mechanism (13) includes a spindle nut (32), a threaded spindle (31) and a drive (21) mounted on the rotor blade (9) adjacent a transition between the rotor hub (8) and the rotor blade (9). The drive (21) is rotatable together with the rotor blade (9) about the blade axis (11) relative to the rotor hub (8) by actuation of the threaded spindle mechanism (13).

Abstract: A pushing force controlling apparatus for a pedal simulator that includes a simulator cylinder in which a first pipe and a second pipe extending from a master cylinder are connected to a front side and a rear side thereof, respectively. A first solenoid valve and a second solenoid valve are installed in the first pipe and the second pipe, respectively and a first piston and a second piston are disposed at a front side and a rear side of an interior of the simulator cylinder. A buffering member is installed between the first piston and the second piston, and pedal pushing force characteristics are controlled by variably setting a position of the second piston in the simulator cylinder using an amount of fluid provided from the master cylinder during an operation of a pedal.

Abstract: Two-bladed vertical axis wind turbines (VAWT) have many efficiency advantages over turbines with other numbers of blades. Principles for making them in the ideal fashion are presented for both drag and lift configurations.

Abstract: A steering control system includes a steering circuit, a primary control circuit and a redundant control circuit. The primary control circuit includes primary proportional control valves, and a primary pilot valve having a thermal bleed of pilot fluid to warm the primary pilot valve when not operating to control the steering circuit. The redundant control circuit includes secondary proportional control valves, and a pressure reducing valve having a thermal bleed orifice allowing fluid flow to warm the pressure reducing valve when not operating to control the steering circuit. The thermal bleeds may also flow past the proportional control valves to raise their temperatures. The circuits of the steering control system are contained in a single valve group housing.

Abstract: A piston assembly, which may be part of a concentric slave cylinder for use in an automatic transmission, is provided. The piston assembly includes a piston and a piston cylinder disposed adjacent to the piston and having portions forming a receiving slot. A piston guide is attached to the piston. The piston guide has a main body portion and an alignment protrusion extending from the main body portion. The alignment protrusion is disposed in the receiving slot of the piston cylinder. The alignment protrusion includes a main alignment portion and a spring lever. The spring lever is separated from the main alignment portion by a gap. Compressible material is disposed in the gap.

Abstract: Turbine and compressor casing abradable component embodiments for turbine engines, with composite grooves and vertically projecting asymmetric non-parallel walls or trapezoidal cross section ridges that reduce, redirect and/or block blade tip airflow leakage downstream into the grooves rather than from turbine blade airfoil high to low pressure sides. In some embodiments at least one angularly oriented first groove formed in the ridge plateau is adapted for angular orientation upstream a turbine blade rotation direction to resist blade tip airflow leakage and the ridges are separated by second grooves that are skewed relative to the respective ridge plateaus and the substrate that are also adapted for orientation upstream the turbine blade rotation direction to resist blade tip airflow leakage.

Abstract: A pump cylinder housing has a hollow cylinder and an end-side cover part, a threaded sleeve may be fixed on the outside of the hollow cylinder, at least three radially outward projections are connected to and distributed on the cover part periphery to the cover part and at least partly pass through recesses of the threaded sleeve. A union nut may be screwed onto the threaded sleeve so that the projections project radially out of the threaded sleeve and bear on an end side of the union nut. The cylinder housing may be assembled by in a simple manner so that the cylinder housing and the cover part may be connected to one another in an exactly colinear and centred manner and thereby may be reliably sealed. The cylinder cover may thereby be positioned in an infinite radial position on the cylinder.

Abstract: In a bent axis type axial piston motor, so as to smoothly rotate a drive shaft without lowering motor efficiency and brake the drive shaft if necessary, when the drive shaft is rotated through a cylinder block by causing piston rods to reciprocate, relative rotation between separate plates and friction plates is allowed by removing a pressing force applied by a braking piston, and when the separate plates and the friction plates are pushed to a brake force receiving plate by the braking piston, relative rotation between the separate plates and the friction plates is restrained and thus the drive shaft is braked. Restriction members are disposed between a casing and the brake force receiving plate so as to restrain the brake force receiving plate from moving relative to the casing along the axis of the drive shaft.