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44results about How to "Damp motion" patented technology

Magnetic particle separator for thermal systems

A magnetic particle separator (10) suitable for separating magnetic and non-magnetic particles from a thermal fluid flowing in a heating system. The magnetic particle separator (10) comprises a hollow body (10A, 10B) configured with an upper particle separation chamber (11) and for circulation of the thermal fluid between an inlet and an outlet port (12, 13), and a quieting chamber (15) beneath the particle separation chamber (11) for accumulation of the particles separated from the fluid: an annular support element (21) for permanent magnets (18) being removably fastened outside the quieting chamber (15) of the separator (10).
Owner:CALEFFI

Blade damper

A turbomachine blade damper has a damper member with first and second damping surfaces for respectively engaging first and second surfaces of adjacent first and second blades. The damper has a seal having a first portion engaged in the damper member to resist relative movement of the seal in at least one direction and a second portion engaging at least one of the blades and advantageously forming a seal to resist upstream gas infiltration.
Owner:RTX CORP

Auto-injector

The invention relates to an auto-injector (1) with a delay mechanism (36) for slowing down motion of a retraction sleeve (10) in axial direction of the auto-injector (1), the delay mechanism (36) comprising a circumferential outer wall (37) with a back collar (38) attached to a housing (2) of the auto-injector (1) and a circumferential inner wall (39) with a front collar (40) attached to the retraction sleeve (10) wherein a cavity is defined between the outer wall (37) and inner wall (39), the cavity sealed by the back collar (38) against the inner wall (39) and by the front collar (40) against the outer wall (37), the cavity filled with a viscous fluid, wherein at least one orifice is arranged in the delay mechanism (36) for allowing the viscous fluid to be pushed out as the volume of the cavity decreases due to axial motion of the component with respect to the housing. The retraction sleeve (10) is axially movably arranged in the housing (2) and serves for retracting the syringe (3) with the needle (4) into the covered position after delivering the medicament (M).
Owner:SANOFI AVENTIS DEUT GMBH

Vibration damping device

The damping device comprises a cluster of resonators with a predetermined frequency distribution, that, when attached to a main or “master” structure, is capable of absorbing irreversibly its vibrational or / and acoustic energy produced by a vi 5 brating body. the density of natural frequencies of the plurality of resonators is comprised within a curve that lies below the envelope curve determined by the formula, e( )=1 / −1.
Owner:UNIV DEGLI STUDI DI ROMA LA SAPIENZA

Hinge arrangement

The invention relates to a hinge arrangement, in particular refrigerator housing comprising a refrigerator door pivotably articulated thereto, with a first part, with a second part pivotably articulated to the first part via a hinge, with a piston cylinder damping unit, which is operatively arranged between the first part and the second part for damping a pivoting movement of the two parts relative to one another, and which is articulated to at least one part.
Owner:SUSPA

Optical element damping systems

The present invention is directed to optical element damping systems. In particular, an eddy current damper is disclosed. The eddy current damper includes a rod, a series of conducting plates coupled to the rod, and layers of magnets. The alternating layers have alternating magnetic fields. When an optical element moves, the optical element will exert a force on the rod. The rod causes the conducting plates to move relative to the alternating layers of magnets to generate eddy currents within each of the conducting plates, such that the eddy currents damp the motion of an optical element. In an alternative embodiment, an eddy current damper motion amplifier is used to provide additional mechanical advantage that significantly increases the damping provided by the eddy current damper. Eddy current dampers are provided within conventional scanning lithography devices and optical maskless lithography devices to improve performance by stabilizing optical element motion.
Owner:ASML HLDG NV

Riser tensioning construction

A vessel includes a riser and / or tendon tensioning construction. A connector, such as an arm or deck structure, is suspended from cables movable relative to cable guides. The connector carries two or more risers and / or tendons extending from a subsea structure to above water level. The free ends of the cables are attached to weights for exerting a tensioning force on the risers, which are substantially decoupled from pitch, roll and heave motions of the vessel.
Owner:SINGLE BUOY MOORINGS INC

Damper root ring

A damper that provides damping to the motion caused by flow induced vibration of a bellows type expansion joint. The damper is at least partially filled with a damping medium and located at a root region of the bellows type expansion joint convolutions. The damper is manufactured in segments which have an attachment structure therebetween to facilitate retrofitting of the damper to various conduits that are experiencing or are expected to experience flow induced vibration.
Owner:AEROJET ROCKETDYNE OF DE

Deep draft semisubmersible movable offshore structure

InactiveUS7270071B1Reduce heave motionReduced roll motionArtificial islandsDrilling rodsBuoyancyBallast
The present invention is a deep draft partially submersible and buoyant floating vessel comprised of at least three independent vertical columns. The columns have an upper column with an upper column diameter and a lower column integrally connected to the upper column with a lower column diameter smaller than the upper column diameters. The lower column contains a variable ballast, a free flooding ballast, and a lower column fixed ballast. The lower pontoon is connected to each lower column opposite the upper column. The lower pontoon has lower pontoon fixed ballast means. A deck is located on the columns for supporting a tensioner assembly.
Owner:BENNU OIL & GAS LLC

Aircraft door installation

An aircraft exterior door installation with a door attached to an airframe. A damper is arranged to damp motion of the door as it is opened by rotating it away from the airframe. A coupling mechanism couples the damper with the door over an opening damping range and decouples the damper from the door at the end of the opening damping range. The damper does not damp the motion of the door as it opens beyond the opening damping range. Instead of damping the door over its full range of motion, it is only damped over a limited inner range of its motion. A further advantage of decoupling the door and the damper is that the damper does not need to extend into the airflow to the same extent as the door, thus minimising aerodynamic drag.
Owner:AIRBUS OPERATIONS (SAS)

Valve train of internal combustion engine

A valve train of an internal combustion engine equipped with a valve reciprocated by a cam is equipped with a spring seat manufactured in order to prevent the surging of a coil spring. A spring seat having a squeeze film effect of damping the axial motion of a coil spring is provided at one end of the coil spring in a closing direction. The spring seat is configured to be provided with an oil slit which radially intersects and extends helically around a valve axis.
Owner:HONDA MOTOR CO LTD

Damped valve

A damped poppet valve is disclosed. The valve has a valve element movable into and out of engagement with a valve seat to open and close the valve. A damping piston attached to the valve element is slidably received within a damping chamber along a path of travel toward and away from the valve seat. The chamber has an orifice which is small relatively to the cross-sectional area of the piston. The piston forces fluid through the orifice as it moves along the path of travel, thereby damping motion of the valve element.
Owner:BOC GRP INC

Damper root ring

A damper that provides damping to the motion caused by flow induced vibration of a bellows type expansion joint. The damper is at least partially filled with a damping medium and located at a root region of the bellows type expansion joint convolutions. The damper is manufactured in segments which have an attachment structure therebetween to facilitate retrofitting of the damper to various conduits that are experiencing or are expected to experience flow induced vibration.
Owner:AEROJET ROCKETDYNE OF DE

Sliding mechanism for guide pins of a disc brake assembly

PendingUS20200256410A1Damp motionEliminates and substantially reduces binding and rattle and wrappingNoise/vibration controlAxially engaging brakesDisc brakeStructural engineering
A disc brake assembly includes an anchor bracket, a guide pin, a sliding mechanism, and a damping member. The anchor bracket may have at least one bore formed therein. The guide pin may be adapted to be disposed in the at least one bore and slidably support a brake caliper relative to the anchor bracket. The sliding mechanism may be adapted to be disposed in the at least one bore and to slidably support the guide pin in the at least one bore. The damping member may damp sliding motion of the guide pin relative to the anchor bracket.
Owner:ZF ACTIVE SAFETY US INC

Electromagnetic-released, multi-disc enclosed safety brake

An electromagnetic-released, multi-disc, enclosed safety brake for primary use in offshore marine winch applications includes a stationary coil housing that encompasses springs that apply pressure to an armature, a pair of separator plates, three friction plates and a stationary endplate. The multi-disc brake is released by means of a DC voltage applied to the brake coil. The excited coil generates an electromagnetic force that attracts the armature across an air-gap thus reducing the spring force applied to the disc pack. The brake is applied when the DC voltage is removed from the brake coil. Various structures and methodologies for reducing vibrations in the brake are also provided.
Owner:PT TECH LLC

Generator with torsional damper

A rotor assembly of an electric machine includes a rotor body and a shaft assembly positioned at a central axis of the rotor assembly, and operably connected thereto. The shaft assembly includes a main rotor shaft operably connected to the rotor body, a center drive shaft located inside of the main rotor shaft, and a hydraulic damper sleeve located radially between the main rotor shaft and the center drive shaft. The hydraulic damper sleeve defines a plurality of cavities between the hydraulic damper sleeve and the center drive shaft. The hydraulic damper sleeve is configured to urge a fluid into and out of the plurality of cavities thereby damping relative circumferential motion between the main rotor shaft and the center drive shaft. A plurality of flow restrictors are configured to easily allow fluid into the plurality of cavities, while restricting flow of fluid out of the plurality of cavities.
Owner:HAMILTON SUNDSTRAND CORP

Shock damping entertainment mount for exercise equipment

A shock damping mount for connecting an entertainment system, such as a television, to an exercise device, such as a treadmill, to decrease the motion of the treadmill that would otherwise be incident on the entertainment system. The device specifically utilizes a damping bracket having both a rotational connection and a spring connection that damps impact-generated motion generated by the user prior to it reaching the entertainment system.
Owner:TRUE FITNESS TECH

Motion absorbing system and method for a structure

A motion absorbing system and method for a structure includes the coupling of a container to a structure. The container has a liquid disposed therein wherein a ullage is defined above a surface of the liquid. An elastic element is positioned in the liquid. The elastic element has a natural frequency tuned to damp motion of the liquid.
Owner:UNIVERSITY OF MAINE

Magnetic damping for space vehicles after end-of-life

A space vehicle includes one or more magnetorquers operable to change an attitude of the space vehicle in an external magnetic field, each magnetorquer comprising a coil, and a switching circuit for short-circuiting the coil of at least one of the magnetorquers so that a closed electric circuit comprising said coil is formed, for damping tumbling motion of the space vehicle in the external magnetic field. The switching circuit is configured to short-circuit the coil of the at least one magnetorquer upon occurrence of a condition indicative of end-of-life or failure of the space vehicle. The application further relates to a corresponding method of operating a space vehicle.
Owner:EUROPEAN SPACE AGENCY
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