37results about How to "Improve suspension capacity" patented technology

A PZT micro-actuator for a head gimbal assembly includes a pair of separate PZT elements and each PZT element has a body and a plurality of electrical pads. The body has at least two electrode-piezoelectric combination layers laminated together. The at least two electrode-piezoelectric combination layers are physically connected with but electrically isolated from each other. Each electrode-piezoelectric combination layer has at least two of the electrical pads thereon. The electrical pads extend out from the body of the corresponding PZT element. All the electrical pads of each PZT element are offset a predetermined distance therebetween to be electrically isolated. The present invention also discloses a head gimbal assembly (HGA) with the PZT micro-actuator, an assembling method for the head gimbal assembly and a disk drive unit having such HGA.

Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious slurry is formed, the slurry is mixed with a gas such as air, and is subjected to mechanically created turbulence to generate gas bubbles and create a foam, which preferably is stabilized by a foam stabilizing agent such as polyvinyl alcohol present in the slurry. The foam is then conveyed to a nozzle or other suitable dispense point from which it is applied, for example sprayed, preferably uniformly, onto a substrate to be coated. Prior to dispensing, a set accelerator is preferably injected, which causes the foam to gel, which in turn improves the hangability of the product on a substrate. The spray material adheres to the substrate and hardens to form an insulative coating on the substrate. Also disclosed are dry compositions comprising a hydratable cementitious binder, a mechanical foam stabilizing agent, and optionally a fibrous component, set retarder and air entraining agent, said composition providing, on the addition of water, gas and mechanical turbulence, a settable foam which is capable of spray application to a steel structural member and which, after spray application, is adherent to the member in the foamed state and after setting. The foam after setting, forms a fire and heat protective adherent coating on the member.

The invention discloses a mechanical-hydraulic double-acting release rotary tail pipe hanger, and belongs to the technical field of manufacturing downhole tools for oil and gas well cementing operations in oil and gas development. The mechanical-hydraulic double-acting release rotary tail pipe hanger comprises a short drill pipe, an upper joint, a release mechanism, a double male joint, a male and female joint and a lower joint. The short drill pipe, the upper joint, the double male joint and the lower joint are connected in a threaded manner from up to down sequentially. The mechanical-hydraulic double-acting release rotary tail pipe hanger further comprises a loading mechanism comprising a hanger set hydraulic cylinder, a light-load bearing, conjoined twin slips, a conjoined twin cone, a heavy-duty bearing and a central pipe. The hanger set hydraulic cylinder, the light-duty bearing, the conjoined twin slips, the conjoined twin cone and the heavy-duty bearing are arranged on the central pipe from down to up sequentially. The central pipe is connected at the lower end of the male and female joint. The heavy-duty bearing is arranged between the male and female joint and the conjoined twin cone. By the aid of the mechanical-hydraulic double-acting release rotary tail pipe hanger, a tail pipe can rotate when the a tube pillar enters, after the hanger is set and is separated from a releasing release, the slips and the bearings bear the hanger, and functions of rotating and well cementing of a heavy-duty tail pipe is realized.

The invention discloses a marine floating type drilling riser flexible hander which mainly comprises a chuck-universal joint assembly, a motion compensation device, a guide mechanism and a hydraulic power unit. The chuck-universal joint assembly is combined by adopting an embedded structure, suspension and up-down of a water string can be achieved, and it is ensured that the chuck swings by a certain angle along with a riser; a distance-increasing type motion compensation hydraulic cylinder is adopted on the motion compensation device to drive the chuck-universal joint assembly to do compensation motion. The guide mechanism ensures that the chuck-universal joint assembly does rectilinear motion along a guide rail through sliding fit of a sliding block installed on the chuck-universal joint assembly and the guide rail, and the radial load of the riser is borne. The hydraulic power unit provides power and control for the whole device. On the basis of achieving the conventional suspension and up-down operation function, the system structure height is lowered, the riser suspension operation step is simplified, suspension time is shortened, the variation amplitude of the load in the riser is lowered, and the suspension performance and reliability of the riser are improved.

A suspension bearing device, comprising a bearing, a lower cup and an upper cup centered on a central axis. The lower cup includes a body having a tubular axial portion and an annular outward radial portion. The lower cup is provided with at least one seal disposed in sealing contact with the upper cup, The lower cup is provided with a damper pad having a cambered shape delimited by: an inner portion which is connected to the seal through the radial portion of the body; and a convex outer portion for bearing a suspension spring. The invention also concerns a motor vehicle equipped with such a suspension bearing device and a method for manufacturing such a suspension bearing device.

A suspension bearing device, comprising: a bearing, a lower cup and an upper cup centered on a central axis. The lower cup having a body including a tubular axial portion and an annular outward radial portion. The lower cup is provided with a damper pad including: an inner portion disposed against the annular outward radial portion of the body; an outer portion for bearing a suspension spring; and an annular recess for receiving a creep of material of the damper pad when the outer portion is constrained by the suspension spring. The suspension bearing device can be integrated into a motor vehicle. A method for manufacturing such a suspension bearing device.

A method is provided for producing a light weight, low to medium density product from gasified or aerated liquids and gels, such as air-entrained concrete. The method includes mixing cement, aggregate, water, air bubbles, a foam stabilizing agent and a plurality of suspension elements together to form a concrete mixture, pouring the mixture into a form and allowing the mixture to harden in the form. The suspension elements include synthetic fibers, such as polyolefin, nylon or polyester monofilaments, wherein each monofilament has a denier of less than 15 and a length of greater than 0.635 cm to 1.905 cm (¼ inch to ¾ inch).

The invention discloses an active suspension inertia regulation and control method based on terrain in front of a vehicle and a control system thereof. The method comprises the steps: according to the terrain in front of the vehicle obtained by scanning, calculating the centroid trajectory and the attitude history of the vehicle passing through the terrain in front of the vehicle in a passive suspension manner, and after smoothing the centroid trajectory and the attitude history, controlling the active suspension to enable the vehicle to run according to the smoothed trajectory; during the period, adjusting the smoothing coefficient to limit the travel of each suspension within the limit travel, and performing force-displacement-based impedance control on the actuator of the suspension according to the supporting force and travel of each active suspension calculated by the dynamical model. According to the invention, the smoothness and the control stability of the vehicle running on an uneven road surface can be obviously improved.

A suspension includes a flexure including a conductive substrate, and a dielectric layer formed on the conductive substrate, and the conductive substrate being grounded; and a plurality of electrical traces formed on the dielectric layer and extending from a leading portion to a trailing portion of the flexure, and the electrical traces at least having a pair of read traces. At least one via is formed at certain position on the read traces to connect the read traces with the conductive substrate that is etched partially. It can minimize ESD damage during various stages of manufacturing process of the disk drive unit, reduce manufacturing cost, and also improve electrical performance of the suspension interconnection.

Water-based intumescent fireproofing formulations are provided that exhibit excellent fireproofing properties while simultaneously significantly reducing and/or eliminating the potential for VOC release and exhibiting excellent hangability properties. The intumescent fireproofing formulation includes a coalescent that significantly reduces and/or eliminates the potential for VOC release and fiber constituents, e.g., fibers of greater than 0.2 mm in length. Exemplary coalescents have a boiling point of at least 180° C. and include bis(2-ethylhexanoate) triethyleneglycol and 2,2,4-trimethyl-1,3-pentanediolmono(2-methylproponate). Intumescent fireproofing formulations are also provided that include clay to further improve performance.

The present utility model provides a plunger pump for fabricating soft capsules, which plunger pump includes a switch body and a plunger body interconnected to each other, a rotary switch adapted to the switch body, and a plunger rod adapted to the plunger body. The switch body and the plunger body are connected to form an accommodation space, the switch body has a liquid suction hole and a liquid injection hole both communicative with the accommodation space, the plunger body has a channel for accommodating the plunger rod, and the rotary switch has a notch and is closely press-fit to the switch body to form a hermetic surface. It is possible to switch between the opening and the closing states of the liquid suction hole and the liquid injection hole. The plunger rod performs a linearly reciprocating movement in the channel so that the accommodation space periodically reaches a maximum value of capacity and a minimum value of capacity. The present utility model employs the structure of a rotary switch, which is sealed with zero gap, to switch between the opening and the closing states of the liquid suction hole and the liquid injection hole, whereby it is substantially free of leakage of medical solution and there is no mixing and dissolving with lubricating oil during normal operation of the plunger pump, to thereby enhance the precision in the loading amount and eliminate the problem of contamination of the medical solution by the lubricating oil.

The invention provides vehicle suspension devices and a vehicle equipped therewith. The vehicle comprises a vehicle body and at least one pair of wheels arranged below the vehicle body. Each vehicle suspension device corresponds to one of the wheels and comprises a suspension spring structure, a suspension bracket and a main bearing, wherein each suspension spring structure is arranged above the corresponding wheel; a first position of each suspension bracket is connected to the other end of the corresponding suspension spring structure; a second position of each suspension bracket is connected to the corresponding wheel; and each main bearing is connected between the corresponding suspension bracket and the vehicle body. By arranging the suspension devices directly above the wheels, the vehicle suspension devices and the vehicle equipped therewith are capable of increasing the distance between the two suspension devices on the left and right, improving the suspension performance and reducing the height of center of gravity of the whole vehicle, thereby improving the running stability of the vehicle. In addition, the vehicle suspension devices and the vehicle equipped therewith increase the distance between the left and right wheels and omit a vehicle axle so as to greatly reduce the height of a bottom plate of a vehicle container and even enable the bottom plate to be close tothe ground, thereby increasing the storage space of the vehicle and improving the space utilization.

In order to overcome shortcomings of performances of an existing suspended anti-sidesway system, the invention breaks the routine thoroughly, a conventional suspension mode of using an anti-sidesway torsion bar to connect wheels on the two sides or lower arms is abandoned, and by changing a force bearing point and a force direction, a harmful sidesway force is converted into a useful reacting force for offsetting the sidesway force in a most scientific mode. The sidesway force is balanced with the reacting force which has the same strength as the sidesway force and is opposite in direction. Under the control by a parameter control unit, the sidesway force is balanced out during vehicle turning, a vehicle body is lowered, and safety and controllability are improved; during straight running of the vehicle, wheels jump freely, and comfort is enhanced. Extension and locking of hydraulic axial clutches of a front balance device and a rear balance device are controlled respectively in real time through the parameter control unit, and poor states that the vehicle nodes during braking and raises the head during starting and acceleration are changed to improve riding comfort.