38results about How to "Strong damping" patented technology

The invention discloses a preparation method of a compound type light-weight high-intensity nickel-titanium memorial alloy base high damping material. In the method, a powder sintering method is mainly used as a foundation and a pressureless infiltration technology is used as assistance; a pore-creating technology is firstly adopted; and a unit metal powder cascade sintering method is used for preparing a porous nickel-titanium alloy the holes of which are uniformly distributed; and then the pressureless infiltration technology is adopted for inducing the pure magnesium or magnesium alloy phase with high intrinsic damping, low density and micron scale into the porous nickel-titanium alloy, thereby preparing the high-damping magnesium(or magnesium alloy)/nickel-titanium memorial alloy base compound material the damping control phase of which is magnesium or the magnesium alloy. The compound nickel-titanium memorial alloy prepared by the invention still has the shape memory effect and the superelasticity action as well as has weight lighter than that of the compact nickel-titanium memorial alloy and intensity and damping capacity more excellent than that of the common porous nickel-titanium memorial alloy. The preparation method has good technical suitability, simple preparation process and low cost, and can be used for manufacturing the light-weight high-intensity compound damping materials, damping structures and apparatuses.

Provided is an automotive shock absorber with micro porous metal fiber felt as a damping element. High viscosity hydraulic oil is adopted in the shock absorber; the micro porous metal fiber felt, rather than a common hydraulic valve is adopted as the damping element damping element, the hydraulic oil is forcefully divided by metal fibers to flow when flowing in micropores of the metal fiber felt;strong shearing and inner friction happen in an interface zone of the hydraulic oil and the metal fiber felt, and therefore an effective damping effect is achieved; and the vibrating energy can be fast and efficiently absorbed, the driving comfort is improved, and an abstract drawing is a typical schematic diagram of the automotive shock absorber with the micro porous metal fiber felt as the damping element.

A gas spring comprises a cylindrical casing, in which a piston rod is guided for displacement concentric of a central longitudinal axis. A damping piston is mounted on the piston rod, dividing the interior of the casing into two sectional casing chambers. A filling of compressed gas is provided inside the casing. A damping device is provided for velocity-dependent damping of a motion of stroke of the damping piston and another damping device is provided for path-dependent damping of a motion of stroke of the damping piston. The result is a gas spring of excellently controllable stroke behaviour.

The invention relates to manufacturing of a damping material, in particular to a method for preparing a TiNiCu shape memory alloy damping composite. A porous TiNiCu shape memory alloy is prepared, holes of the TiNiCu shape memory alloy are filled with metal Mg, and the TiNiCu shape memory alloy damping composite, namely, Mg/TiNiCu is prepared. The defects that in an existing porous TiNiCu shape memory alloy preparation method, the porosity, the aperture and the hole type are all hard to control; and an existing technology of introducing Mg into the porous alloy cannot be used for filling porous TiNiCu alloy with Mg, and the damping performance and other mechanical performance of an alloy product need to be improved are overcome.

A fuel injector (1) is provided with a magnetic coil (10) which cooperates with an armature (20) acted upon by a restoring spring (23), the armature forming an axially movable valve part with a valve needle (3). A valve-closure member (4) which forms a sealing seat with a valve-seat member (5) is provided at the valve needle (3). At least one damping element (37) is disposed in an opening (36) of the fuel injector (1) through which fuel flows.

The invention discloses a combined car frame of a car. The combined car frame of the car comprises a car frame body front section, a car frame body middle section and a car frame body rear section, wherein the car frame body middle section is lower than the car frame body front section and the car frame body rear section. The car frame body front section comprises at least two car frame body frontsection longitudinal beams and at least two car frame body front section cross beams. The car frame body middle section comprises at least two car frame body middle section longitudinal beams and atleast two car frame body middle section cross beams. The car frame body rear section comprises at least two car frame body rear section longitudinal beams and at least one car frame body rear sectioncross beam. The car frame body front section, the car frame body middle section and the car frame body rear section are made of alloys. By transforming the structural design of the car frame and modifying material section of the car frame, the combined car frame has the advantages of simple structure, low mass, good car stability, good vibration reduction and absorption effects and high bearing capacity; and meanwhile the production cost is reduced, energy is saved, pollution is relieved, and broad development and application prospects are achieved.

The fuel injection system has a high-pressure fuel pump (10) and a fuel injection valve (12) for a cylinder of the engine. The high-pressure fuel pump (10) has a pump work chamber (22), and the fuel injection valve (12) has an injection valve member (28) by which at least one injection opening (32) is controlled and which is movable in an opening direction (29) counter to the force of a closing spring (44); the closing spring (44) is braced on one end on the injection valve member (28) and on the other end on a displaceable storage piston (50) that is acted upon, on its side remote from the closing spring (44), by the pressure prevailing in the pump work chamber (22). The storage piston (50) is movable into a storage chamber (55) counter to the force of the closing spring (44), and the deflection stroke motion of the storage piston (50) into the storage chamber (55) is limited by a stop (54). A shaft part (52), which has one shaft portion (74) of smaller cross section disposed in an outset position in a connecting bore (53) and one shaft portion (72) of larger cross section disposed outside the connecting bore (53) in the storage chamber (55), is movable with the storage piston (50), and upon the deflection stroke motion of the storage piston (50) into the storage chamber (55), the shaft portion (72) of larger cross section dips into the connecting bore (53).

A robust engine assembly having reduced weight and efficient cooling, without an increase in fuel consumption or carbon dioxide emissions, is provided. The engine assembly includes a double-wall cylinder liner clamped between a cylinder head and a crankcase. A manifold is disposed along a portion of the cylinder liner and includes fluid ports aligned with fluid ports of the cylinder liner to convey cooling fluid to a cooling chamber located between the walls of the cylinder liner. For example, the manifold can be a low-loss hydraulic manifold cast integral with the crankcase. Tie rods connect the cylinder head to the crankcase to clamp the cylinder liner in position. Alternatively, the tie rods can be connected to a main bearing cradle located beneath the crankcase. No attachment features extend into the walls of the cylinder liner, which is especially advantageous when the cylinder liner is formed of aluminum.

The invention relates to a method and an apparatus for receiving cylindrical bodies (1; 1, 16). In the method according to the invention, the receiving utilises tight, self-restoring pressure elements (7), in which by adjusting the inflow and/or outflow of compressed air, the motion speed of the cylindrical body (1; 1, 16) is decelerated. The apparatus according to the invention includes a pressure element (7) within the elastic and tight material of which is installed self-restoring porous material (10). Furthermore, the invention relates to the use of the method and the apparatus for receiving a cylindrical body.

A fillable rearview mirror assembly and method of molding a carrier for the assembly are provided. The mirror assembly has a hollow carrier that can be at least partially filled with a material having a density different than that of the carrier. A mirror can be attached to the carrier and the carrier attached to the vehicle.

The fuel injection system has a high-pressure fuel pump (10) and a fuel injection valve (12) for a cylinder of the engine. The high-pressure fuel pump (10) has a pump work chamber (22), and the fuel injection valve (12) has an injection valve member (28) by which at least one injection opening (32) is controlled and which is movable in an opening direction (29) counter to the force of a closing spring (44); the closing spring (44) is braced on one end on the injection valve member (28) and on the other end on a displaceable storage piston (50) that is acted upon, on its side remote from the closing spring (44), by the pressure prevailing in the pump work chamber (22). The storage piston (50) is movable into a storage chamber (54) counter to the force of the closing spring (44), and the deflection stroke motion of the storage piston (50) into the storage chamber (54) is limited by a stop (53). The storage piston (50) has one shaft portion (74) of smaller cross section, disposed in an outset position in a connecting bore (56), and one shaft portion (63) of larger cross section, disposed outside the connecting bore (56) toward the pump work chamber (22), and upon the deflection stroke motion of the storage piston (50) into the storage chamber (54), its shaft portion (63) of larger cross section dips into the connecting bore (56).

The invention provides a landing leg mechanism for recovering a rocket, the landing leg mechanism comprises an on-rocket mounting support and a plurality of landing leg devices, the on-rocket mounting support is fixed at the bottom of the rocket, and the plurality of landing leg devices are uniformly fixed on the on-rocket mounting support at intervals; the landing leg device comprises a top plate, a bottom plate, a buffer spring and a damping buffer mechanism; the top plate is fixed on the mounting support on the rocket; the top ends of the buffer springs are fixedly connected with the top plate, and the bottom ends are fixedly connected with the bottom plate; and the top end of the damping buffer mechanism is fixedly connected with the top plate and the bottom end is fixedly connected with the bottom plate. When the rocket is landed, the four landing legs make contact with the ground, the landing leg structures are compact, good buffering and damping capacity is achieved, and meanwhile the high-temperature-resistant environment is achieved.

The invention provides a mobile phone and tablet computer support with a damping structure. The mobile phone and tablet support comprises a first connecting rod and a second connecting rod which are hinged with each other, and a first damping structure is mounted at the hinged part of the first connecting rod and the second connecting rod. The first damping structure comprises a limiting shaft, one end of the limiting shaft is connected with the second connecting rod, and the other end of the limiting shaft extends into the first connecting rod. The extending end of the limiting shaft is sleeved with a plurality of first damping fins in the axial direction, and a plurality of second damping fins corresponding to the first damping fins are installed on the inner wall of the first connecting rod in the axial direction. During use, the limiting shaft drives the first damping fins to rotate, and the first damping fins and the second damping fins are matched to generate a damping effect. According to the mobile phone and tablet support with the damping structure, the defects that an existing damping structure is poor in use effect and the damping size cannot be adjusted are overcome.