37results about How to "Large parameter range" patented technology

The invention discloses a power system of a cam rotor internal combustion engine, belongs to the field of engines, and relates to a rotor internal combustion engine. The power system uses cams and multiple cam driven pieces to form a cam mechanism, and to form multiple sealed working cavities, peripherally distributed, with inner cavity components, outer rotating surface components and end components; the sealed working cavities change the volumes along with relative rotation of the cams and the cam driven pieces to match valves to finish four processes of intake, compression, acting and exhaust of the Otto cycle therein; and chemical energy generated by gas combustion is directly converted to mechanical energy in a rotor fixed-shaft rotating form. The power system discards a crankshaft of a piston engine; high-pressure gas directly pushes rotor fixed shafts to rotate and to output power; the structure is simple; and the parameter adjusting range is wide. The power system is liable to realize flexible control, or even can realize forward and reverse rotation under control of an additional cam driven piece encapement device; and compared with power systems of a piston internal combustion engine and a triangular rotor internal combustion engine, the power system of the cam rotor internal combustion engine has multiple prominent advantages.

The invention discloses a gear fixture suitable for a roughness profiler. The gear mandrel and the gear are connected through an expansion sleeve, the gear mandrel is connected to the cage of the dense bead shaft system through a short taper, and the output shaft of the motor is through a shaft coupling. The sensor is connected with the dense ball shaft system, and the AC servo motor and the circular grating for position measurement form a closed-loop system. The motor can control the gear to rotate around the X axis. The Y-axis direction uses a linear sliding platform to control the Y-axis movement of the gear, so that the profiler can measure the data of the entire tooth surface. The gear to be tested has two degrees of freedom in the direction of the Y axis and the rotation around the X. Combined with the roughness profiler, it can meet the measurement requirements of all gear tooth surfaces. The designed gear fixture can be used with different types of roughness profilers, and can complete the measurement of gear tooth profile deviation, helix deviation, tooth pitch deviation and tooth surface roughness under the same clamping condition.

The invention provides a build-in dehumifying reheating multiple stage turbine. The steam reheater is set between the adjacent grades in the cylinder of the turbine, leads the new steam from the main steam tube behind the main valve of the turbine to the reheater to heat expansion desiccation and steam and falls its humidity to protect the turbine from the water erosion; the outlet of the reheater connects the sparse liquid expansion box through the sparse box valve and the exhausting aperture of the expansion box connects the condensator. The invention can directly desiccate and reheat the steam between the grades.

The invention discloses an internal combustion engine power system for matching a swing block with an inner cavity cam rotor, belongs to the field of internal combustion engines, and relates to the internal combustion engine power system for matching the swing block with the inner cavity cam rotor. In the power system, the inner cavity cam rotor is used for forming a cam mechanism with multiple swing driven pieces mounted on a center component in a cavity, and is used for forming multiple peripherally distributed sealed working cavities with end components; the sealed working cavities are changeable in volumes along with relative rotation of the inner cavity cam rotor and the center component; valves are arranged in a cooperation mode to finish four processes of intake, compression, acting and exhaust of the Otto cycle therein; and chemical energy generated by gas combustion is directly converted to mechanical energy in a relative fixed shaft rotating mode of the inner cavity cam rotor and the center component. High-pressure gas directly pushes a rotor fixed shaft to rotate and to output power; and the system is simple in structure and wide in parameter adjusting range. Under longitudinal capturing control of additional swing block, the system is liable to realize flexible control; and compared with a triangular rotor internal combustion engine power system, the system has more prominent advantages.

The invention relates to a device which is used in the metal structure material rusting away the condition monitor the metal to rust away the monitor optical fiber diffraction grating transmitter, constitutes including the first support abutment, through one to skids in the first support abutment one side along the week skids the joint of casing second support abutment, in should skid on the drive pipe with to wait the monitor metal material to circle the system as soon as to have the compression remainder the spring and the agglutination skid on the drive pipe in the technique, in should skid the drive pipe central shaft position to be gummy as soon as receives the first optical fiber diffraction grating which the spring resiliency stretches, a this first optical fiber diffraction grating light end fixes in on the first support abutment which states and stretches out a free electricity, This optical fiber free electricity connects the first fiberoptic connector; In states the optical fiber free electricity which the second support abutment one side stretches out in addition to connect the second fiberoptic connector. This invention has the simple structure, the easy manufacturing, low cost and good robustness.

The invention relates to a swinging block and cam rotor cooperating internal combustion engine power system and belongs to the field of internal combustion engines. In the power system, cam rotors and a plurality of swinging driven parts are adopted to form a cam mechanism, the cam rotors, the swinging driven parts, rotor chambers and end members form a plurality of circumferentially distributed sealed working chambers; the volumes of the sealed working chambers are changed along with rotation of the cam rotors, and the four processes of air inflowing, compression, acting and exhausting of an otto cycle are finished in the working chambers through cooperation with air valves; and chemical energy generated by gas combustion is directly converted into fixed-shaft rotation type mechanical energy of the rotors. According to the swinging block and cam rotor cooperating internal combustion engine power system, planetary motion of Wankel rotors and an inner chamber in a specific shape are not needed, high-pressure gas directly pushes the rotors to perform fixed-shaft rotation and power is output, the structure is simple, and the parameter adjustable range is wide. Flexible control is easy to achieve under control of an added swinging block escapement device, and compared with piston internal combustion engine and Wankel rotor internal combustion engine power systems, the swinging block and cam rotor cooperating internal combustion engine power system has much more outstanding advantages.

The invention belongs to the field of internal combustion engines, and relates to an inner cavity cam rotor internal combustion engine power system. In the system, a cam mechanism is composed of inner cavity cams and a plurality of sliding block followers installed on central members in a cam cavity in the system, and a plurality of sealed working cavities distributed circumferentially are composed of the inner cavity cams and end members; the cam mechanism and the sealed working cavities change in volumes with the relative rotation of the inner cavity cams and the central members, and are fit to valves to finish four procedures, namely air intake, compression, acting and exhaust of Otto cycle therein; chemical energy generated from gas combustion is directly converted into mechanical energy output in the fixed-axis rotation form of the inner cavity cams or the central members. In the invention, a rotor fixed axis is driven to rotate and output power by high-pressure gas directly; the structure is simple, and the parameter adjustable range is wide. The flexible control is easy to achieve under the control of an additional sliding block escapement device, so that the positive and negative rotation is realized. Compared with piston internal combustion engine and triangular rotor internal combustion engine power systems, the inner cavity cam rotor internal combustion engine power system has many outstanding advantages.

The invention discloses an all-coefficient adaptive control method based on a one-order characteristic model. The all-coefficient adaptive control method comprises the following steps: calculating a primary parameter estimation vector theta1(k) of a current cycle according to the formula which is as shown in the description; calculating an estimated parameter vector theta(k) according to the primary parameter estimation vector theta1(k) of the current cycle and an estimated parameter vector theta(k-1) of a previous cycle; carrying out feedback control according to estimated parameters alpha(k) and beta0(k) of the current cycle to obtain a control vector u(k) of the current cycle. The all-coefficient adaptive control method based on the one-order characteristic model is few in parameter, simple in algorithm, large and easily definable in parameter range, high in tracking speed of dynamic gain calculated by parameter estimation values and high in adaption capability.

The invention belongs to the field of design of internal combustion engines and relates to a cam rotor internal combustion engine power system design method, in particular to a cam rotor internal combustion engine design method. In the design method, according to cam lift and size changes, caused by the cam lift, of the contour surface of a cam; other surfaces of the cam are wrapped through the inner surface of an inner cavity rotation surface component, the outer surface of an outer rotation surface component and corresponding end components in a contact sealing mode, and then an unsymmetrical annular gap is formed; the cam is made to do fixed-axis rotation along with one of the inner cavity component and the outer rotation surface component relative to the other one; a set of cam driven parts are mounted on the inner cavity component or the outer rotation surface which is not fixed to the cam. According to the design method, the four classic procedures of the otto cycle are realized through volume change, and the influence on the rotational speed is little. A control system is used in cooperation to realize flexible transformation of various working modes. The adaptability is high. The system is good in designability and especially suitable for being used in cooperation with computers to conduct flexible automatic control.