131results about How to "Small adjustment" patented technology

A helmet (20) comprising a mechanism (28) to increase or decrease the internal volume thereof through the displacement of one or more portions (32) of the protective material (24) lining the helmet shell (22). The adjustment mechanism (28) is mounted on or adjacent the shell (22) of the helmet (20), from which project one or more connectors (30) which are operationally connected to the movable portions (32) of the protective material (24). When the adjustment mechanism (28) is activated, for example clockwise or counterclockwise, the connectors (30) are displaced, which causes the movable portions (32) of the protective material (24) to either be displaced away from the shell (22) of the helmet (20) or towards the shell (22) of the helmet (20) and thus allowing for a fine tuning of the fit of the helmet (20) on a player's head.

The invention discloses a car air conditioning system electronic expansion valve control method. Pre-adjustment value s0 of the valve opening of the electronic expansion valve is determined by the rotating speed of a compressor. Actual degree of superheat Tsh is calculated according to temperature and pressure of refrigerant of an outlet of an evaporator or an inlet of the compressor. The actual degree of superheat is compared with a presupposed interval of threshold values of the degree of superheat to obtain delta s. Control signals s of the adjustment valve opening are output to a controlling end of the electronic expansion valve after the pre-adjustment value of the valve opening is accumulated with valve opening adjustment increment. The car air conditioning system electronic expansion valve control method ensures that the valve opening of the electronic expansion valve arrives a condition according to default of the range of the threshold values of the degree of superheat to reduce adjustment ranges in a stage of adjustment of the degree of superheat, avoids frequent motions of the electronic expansion valve, prolongs service life of the electronic expansion valve, and further reduces system low-pressure pressure fluctuation, reduces energy consumption of the system and ensures normal and high-efficient operation of the system.

The invention provides a fine adjustment control method of an electronic expansion valve. The fine adjustment control method is suitable for the field of intelligent air conditioning equipment and comprises the following steps of opening the electronic expansion valve according to a preset opening; performing real-time adjustment on the opening of the electronic expansion valve according to system running parameters; recording the number of fluctuations if the real-time adjustment fluctuates between opening increase and opening reduction; reducing the adjustment range of the real-time adjustment until the recorded number of the fluctuations is smaller than the preset number if the number of the fluctuations is larger or equal to the preset number; continuing to perform the real-time adjustment on the opening of the electronic expansion valve according to the system running parameters if the number of the fluctuations is smaller than the preset number. According to the fine adjustment control method of the electronic expansion valve, the opening allowance of the electronic expansion valve is reduced through the real-time adjustment on the opening range of the fluctuations between the opening increase and the opening reduction of the electronic expansion valve and accordingly the number of the fluctuations between the opening increase and the opening reduction of the electronic expansion valve can be smaller than the preset number, a system can be run according to the most suitable opening which is suitable for the current working condition parameters, and the stable running of the air conditioning system is achieved.

The invention discloses a control method of an electronic expansion valve of an automobile air conditioner system. The method includes acquiring a result of the judgment of whether the electronic expansion valve is currently in the fault state or not according to the acquired current openness, actual overheat degree Tsh and preset overheat threshold Tsh_set of the electronic expansion valve while conducting overheating degree control and outputting a control signal to an execution mechanism according to the result of the judgment. By means of the control method, effective fault diagnosis can be conducted on the electronic expansion valve in real time. When the overheat degree is mistakenly controlled, the control signal is output to the execution mechanism to stop work of the system by controlling a compressor to shut down and/or remind operators to conduct fault overhauling by controlling a fault indicator lamp to be turned on, so that accidents of refrigeration system device damage caused by mistaken control can be completely avoided, and system running safety and reliability can be improved.

A method for integrated model-based safety analysis includes integrating a safety analysis model into a system development model of a safety-critical system. The system development model includes model components. The safety analysis model models a failure logic separately for each of the model components. The method includes representing dependencies among the model components with a design structure matrix. The design structure matrix represents each of the model components with a row and a column and shows dependencies between model components with corresponding entries. The method also includes sequencing the design structure matrix, and identifying at least one dependency loop and loop components in the sequenced design structure matrix. The loop components are part of the at least one dependency loop.

The instant disclosure relates to a supporting apparatus for adapting to a flat electronic device. The supporting apparatus includes a pedestal and a carrying seat movably disposed thereon. The carrying seat includes a main body, a blocking member, and a bearing member. A sliding surface is formed on the main body. The blocking member is disposed on the main body, and a blocking surface is formed on the blocking member facing the sliding surface. The sliding surface and the blocking surface are arranged in gradual convergence. The bearing member is slidably disposed on the sliding surface and is separated from the blocking member. The bearing member is movable along the sliding surface in adjusting the distance between the bearing member and the blocking member. The flat electronic device is clipped fixingly by the bearing member and the blocking member on opposite sides thereof.

The post exposure bake cycle in a chemically amplified resist process is more precisely controlled by measuring the distance from multiple locations on the bottom of each processed wafer to a reference plane surface while the wafer is supported on a cool plate. Subsequent to measuring the distance, the wafers are transferred to the hot plate that has a series of controllable heating elements. The set temperature for the heating elements is established in response to the distances measured while the wafer is on the cooling plate. The measurements are taken by utilizing proximity sensors located within the cooling plate.

This invention is directed to various protocols for reprocessing off-spec gas to produce a concentration of off-spec gases to a desired target concentration. A combination of source gases is blended with the off-spec gas. This technique has the effect of enabling relatively small adjustments to the concentration of off-spec gas. Processes are also described that incorporate the blending protocols.

A tool for the quick and easy installation and tensioning of track assemblies on skid steer loaders is arranged to properly and positively align and draw the free ends of the track together and hold the track ends in proper, aligned condition squared relative to each other for installation of the track link members and tensioning adjustment of the track as may be desired for proper operation of the vehicle. Additionally, this tool can be used to dismount the track by removing the pressure from the pivot bolts, allowing the operator to easily remove the bolts and then gently let the ends of the tracks apart

A multi-stage elevator car has equipment for fine positioning of the cars wherein the car thresholds are positionable at the level of the floor thresholds. The fine positioning adjusting equipment operates on the principle of a double lever and moves a car frame along a path (Δz).

An arrangement for improving stability of a vehicle combination includes a towing vehicle and at least one towed vehicle, where the at least one towed vehicle includes an actively steered axle and/or individual brake on at least one axle, where the towing vehicle and the at least one towed vehicle each includes a lateral acceleration determining arrangement. A vehicle combination model is adapted for determining a desired delay value between the lateral acceleration of the towing vehicle and the lateral acceleration of the at least one towed vehicle, where the arrangement is adapted to stabilize the at least one towed vehicle by using the determined lateral acceleration of the towing vehicle and the desired delay value for the at least one towed vehicle to establish a desired lateral acceleration for the at least one towed vehicle, and to control the steered axle and/or the individual brake of the at least one towed vehicle such that the determined lateral acceleration of the at least one towed vehicle corresponds to the desired lateral acceleration of the at least one towed vehicle.