93results about How to "Reduce inertia force" patented technology

A piston assembly (12) comprising a reciprocating sleeve (14) incorporating an integral internal piston surface (28), which sleeve is slidably mounted upon a cylinder head (18) so as to define a piston chamber (26) therewith, the piston chamber being sealed in the vicinity of the cylinder head (18) by a circumferential static seal (20) that acts to seal against the reciprocating sleeve (14). The static seal (20) may occupy a horizontal plane and may include sacrificial wear zones and be formed from a graphite-based material. The piston assembly may be an oversquare assembly for use in an oil-free environment for processing high temperature gases, for example, a hot gas engine or heat pump or heat engine such as may be used in an energy storage system.

A main shaft apparatus (10) of a built-in motor system, wherein a rotary shaft (12) is provided with: a first cylindrical component (71) made of metal material; and a second cylindrical component (72) made of carbon fibre composite material, which is positioned on the outer peripheral surface of the first cylindrical component (71) and into the outer peripheral surface of which a rotor (20) fits. By virtue of this, the temperature increase of the rotary shaft and a bearing due to the heat produced by the rotor can be controlled and processing precision can be improved.

The invention relates to a linear motor for a pump. The linear motor adopts a moving-iron type symmetrical structure, and two groups of coils serve as stators and are symmetrically distributed on two sides of a permanent magnet active cell. The stator coils of the motor is connected to a three-phase alternating current power supply and produces a specific traveling wave magnetic field, the active cell produces axial pushing force relative to the stators under the effect of the traveling wave magnetic field, the direction of pushing forced produced by two stators and the active cell are consistent under the effect of the traveling wave magnetic field, and the active cell directly acts energy on a plunger rod to enable the plunger rod to perform reciprocating motion along a guide rail. The linear motor for the pump achieves output of large pushing force, improves the effective pushing force and work efficiency and is suitable for driving of a plunger pump with high and medium voltage and large flow.

The present invention relates to technological scheme of collision-resisting safety protection system for motor vehicle, and belongs to the field of passive safety protection technology for motor vehicle. The protector of the present invention is mounted in front and back of the vehicle and stretched beyond the vehicle for some length. During collision with other vehicle or other body, the present invention changes the hard point or line contact into soft planar contact and changes the force directly on the vehicle into varying elastic force, acting like one elastic soft cushion between the vehicle and other body. The present invention provides also automatic braking system. The present invention change the impact kinetic energy and impact force fast into compression, friction, expansion, pressure raising, etc. of rubber, gas, etc. to reduce the harm of collision to both human body and vehicle.

An internal combustion engine connecting rod, having an embodiment defining a hollow beam member and a process of manufacture are disclosed. The improvement substantially reduces beam tensile and compressive stress levels through application of elliptical and convex segment profile beam sections, conserving reciprocating and rotating connecting rod weight required in high performance engine applications.

Adjacent cone type projections (2) are mutually joined by beads (4) provided at the inner panel (1) between the projections. The projections are provided at the inner panel at equal intervals.

An internal combustion engine connecting rod, having an embodiment defining a hollow beam member and a process of manufacture are disclosed. The improvement substantially reduces beam tensile and compressive stress levels through application of elliptical and oval beam sections, conserving reciprocating and rotating connecting rod weight required in high performance engine applications.

A steering assist device includes: a steering torque detector; a steering operation amount acquisition device; an electric power steering device; and a control device configured to calculate a target control current of the electric power steering device, to supply the control current corresponding to the target control current to the electric power steering device, to determine a situation of steering operation of a driver, and to make a current component corresponding to the target inertia compensation assist torque in the target control current smaller when it is determined that the steering operation is turn-back steering with acceleration and deceleration than when it is determined that the steering operation of the driver is not the turn-back steering with acceleration and deceleration.

Disclosed is a sliding bearing for supporting a crankshaft journal portion of an internal combustion engine. One of the semi-cylindrical bearings is provided with a circumferential oil groove on its inner circumferential surface, and has two circumferential ends. The circumferential oil groove has an open groove end at at least one of the two circumferential ends, which one is a first circumferential end being directed to the same direction as a relative rotational direction of a crankshaft. The other semi-cylindrical bearing is provided with at least one circumferential local groove on its inner circumferential surface, and has two circumferential ends. The circumferential local groove has an open groove end at one of the two circumferential ends, which one is a second circumferential end being directed to the opposite direction to the relative rotational direction of the crankshaft. The circumferential oil groove and the local circumferential groove are in fluid communication with each other. At a region of the fluid communication, a groove bottom of the local circumferential groove is deviated toward an axis of the sliding bearing from another groove bottom of the circumferential oil groove. An axial groove is formed along a contact interface between the first and second circumferential ends.

To reduce energy loss to increase power transmission efficiency, as well as to suppress unusual sound resulting from whirling vibration. A driving force transmission mechanism includes a drive unit that generates a rotation force and consists of a motor, as well as an independent rotating mechanism that is disposed between the drive unit and one of a pair of left and right gear mechanisms so as to be connected to the output shaft of the drive unit and has greater kinetic energy than the rotating parts of the gear mechanisms. Flexible shafts that rotate by smaller kinetic energy than any of the kinetic energy of the drive unit, the kinetic energy of the rotating mechanism, and the friction forces and damping forces of the rotating parts of the gear mechanisms connect between the drive unit and rotating mechanism, between the rotating mechanism and one gear mechanism, and between the drive unit and the other gear mechanism.

The disclosed engine includes cylinder body, end covers on two sides of the cylinder body, and rotor. The rotor divides inner cavity of cylinder into compression cavity and cavity of applying work. Compression sliding blade and exergonic sliding blade are setup in sliding blade slot of rotor alternately. Compression guiding slide way and exergonic slide way are setup on two sides of the cylinder body. Compression guiding slider of compression sliding blade are slid in sliding blade slot so as to drive the compression sliding blade to be protruded out of the compression cavity; and its revolving center of circle is changed in following change of circular arc center of circle in compression cavity. Thus, the compression sliding blade is retracted in cavity of applying work. Similarly, exergonic sliding blade is retracted in compression cavity, and is protruded out in cavity of applying work. The engine reduces inertia and abrasion, and cost, and raises tightness and work efficiency.

A single-die injection pump for high-speed internal combustion engines which, because of its compact design and good volumetric efficiency, in conjunction with a high oscillation frequency of the piston, has a pumping quantity comparable to a multiple-die injection pump, without causing excessively high peak torque values in the drive of the single-die injection pump.

The invention discloses a kilowatt-level optical fiber cladding power stripper employing micro-channel water cooling, and the stripper comprises a heat sink. The heat sink comprises a housing and a lining part disposed in the housing. The housing is provided with a cooling water inlet and a cooling water outlet. The outer wall of the lining part is provided with a spiral groove, and two ends of the spiral groove are respectively communicated with the cooling water inlet and the cooling water outlet. The lining part is provided with a central through hole which is used for the passing of an optical fiber. The stripper employs a mode of micro-channel water cooling for heat dissipation. During the stripping of cladding optical power, the stripper can improve the temperature performance and characteristics of cladding optical power. Compared with a conventional optical fiber cladding power stripper, the stripper can improve the uniformity of heat dissipation, is higher in withstood stripped optical power, meets the requirements of 1000W stripped optical power, is simple in structure, is low in manufacture cost, and is suitable for batch production.

A high-pressure oil pump roller tappet, used for automobile fuel injection system, mounted between the driving cam and the tappet. The roller tappet includes a shell, a holder, a roller, and a pin. Planes A are arranged on both sides of the seam on lateral sides of the shell. Holes I are arranged at symmetrical positions on two planes A. Holes II are arranged on symmetrical positions on vertical plates. The roller is located in the middle of the pin. Welding has no requirement on the thickness of the plate. The weight can be controlled effectively, reducing inertia force, friction, and wear, improving engine efficiency. The shell and holder are designed as being separate, ensuring that the shell subjects to lateral force as little as possible when the holder subjects to a force, such that the shell is less likely to vibrate. Thus, the shell avoids the abrasion.

An XY stage comprises a base, a movable table which is disposed on the base so as to be movable in an X direction and a Y direction in an X-Y plane, and a work member which is provided on the movable table. The XY stage further comprises: a first linear motor for giving a driving force in the X direction to the movable table at the same height as the center of gravity of a movable section composed of the movable table and the work member; and a second linear motor for giving a driving force in the Y direction to the movable table at the same height as the center of gravity of the movable section.

The invention discloses a soil remediation agent spraying device for soil remediation, belonging to the technical field of soil remediation. The soil remediation agent spraying device comprises an outer frame body, a push handle, a base and a supporting seat, wherein a driving mechanism is arranged at the bottom of the base, universal wheels are fixedly connected to the other side of the bottom ofthe base, the push handle is welded to one side of the top of the base, and a controller is fixedly connected to one side of the push handle. According to the invention, a telescopic structure is arranged on one side of the base; a water pump pumps out liquid in a water storage tank through a water pipe and sprays the liquid to soil through a fixed frame; and as the densities of a remediation agent required by different soils are different, an included angle between a first hinge rod and a second hinge rod can be changed by rotating an adjusting button to adjust the rotation of a movable gearat the bottom of the adjusting button, so a fixing frame deflects, and thus, the amount of the remediation agent sprayed to unit soil by the device in the advancing process is changed and the purposeof adjusting the spraying density is achieved.

The invention relates to a wave load self-propulsion ship model test protection device and a use method thereof. The wave load self-propulsion ship model test protection device comprises a hydraulic rod; a pulley block is installed on one end of the hydraulic rod; the other end of the hydraulic rod is fixedly connected to a force sensor; one end of a pulling rope is fixedly connected to a trailer;the other end of the pulling rope passes through the pulley block, and is connected to a self-propulsion ship model; two pulleys are embedded in a hydraulic rod groove in parallel, so that a seamlesspulley block is formed; the protection device is additionally arranged at the front part and the rear part between the self-propulsion ship model and the trailer; when the trailer starts or decelerates to stop, the pulling rope is subjected to load force due to the inertial motion of the self-propulsion ship model; furthermore, load is applied onto the hydraulic rod through the pulley block; theforce sensor detects a load value, and sends the load value to a control computer; when the load achieves a set value, a hydraulic system starts; the self-propulsion ship model is tensioned by tightening the pulling rope; and the self-propulsion ship model gradually moves or stops along with the trailer. The wave load self-propulsion ship model test protection device disclosed by the invention issimple and compact in structure; the kinetic inertia force of the self-propulsion ship model is effectively buffered; and thus, security of a ship, equipment and a person in a test can be greatly ensured.