644results about How to "Adjustable pressure" patented technology

An imaging device includes an image sensor chip and a package for containing the image sensor chip. Formed in the package is a vent hole that is connected to an air pump. In a light receiving area of the image sensor chip, there are photodiodes and microlenses above them. The microlenses are made of a gel-like transparent material. When the internal air pressure of the package is changed by the air pump, each microlens transforms in response to the change of the internal air pressure, and thereby changes the surface curvature thereof.

Described are a positive airway pressure system and method for treatment of a sleeping disorder in a patient. The system includes a generator, a sensor and a processing arrangement. The generator supplies airflow and applies a pressure at to an airway of a patient. The sensor measures data corresponding to patient's breathing patterns. The processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of at least one of the following patient's states: (i) a regular breathing state, (ii) a sleep disorder breathing state, (iii) a REM sleep state and (iv) a troubled wakefulness state. The processing arrangement adjusts the applied pressure as a function of the patient's state.

An inkjet printing apparatus includes: an inkjet head configured to discharge ink; a first tank configured to store ink to be supplied to the inkjet head; a second tank configured to store ink not consumed by the inkjet head; an ink circulation path for circulation of ink among the first tank, the inkjet head, and the second tank; a pressurizer configured to provide the first and second tanks with a pressure for the circulation of ink through the ink circulation path; a first pressure adjuster configured to adjust a pressure inside the first tank during the circulation of ink; and a second pressure adjuster configured to adjust a pressure inside the second tank during the circulation of ink.

In a hand power tool having a housing which at least in part comprises an inner housing and an outer housing, and in which the inner housing and the outer housing are spaced apart from one another, at least one damping element is provided between the inner housing and the outer housing, so that the inner housing and the outer housing are decoupled from one another.

A device that can be inserted into footwear, or used as part of footwear that is designed to correct foot and ankle pathologies through user adjustable, strategically located fluid chamber or chambers.

The invention discloses a board splicing machine. The board splicing machine comprises a machine frame and a board conveying device installed on the machine frame, wherein the board conveying device comprises a bottom board conveying belt for conveying bottom boards forwards, and a side board conveying groove formed in one side of the bottom board conveying belt, and one side, close to the bottom board conveying belt, of the front end of the side board conveying groove is provided with a side board outlet; a gluing device is arranged beside the inlet end of the bottom board conveying belt; an aligning device corresponding to the side board outlet is arranged in front of the side board outlet, and an induction device corresponding to the aligning device and inducting the positions of the bottom boards is further installed on the portion, beside the bottom board conveying belt, of the machine frame; a nail gun is arranged between the side board outlet and the aligning device; the board conveying device, the aligning device and the nail gun are further connected with a control device, and the input end of the control device is connected with the induction device; a pressing and connecting device for pressing and airing the bottom boards and side boards is arranged in front of the outlet end of the bottom board conveying belt. The board splicing machine is reasonable in structure and convenient to use, the machining efficiency can be substantially improved, consumption of wood can be reduced, and cost can be saved.

An internal combustion engine drivably connected to a variable displacement and variable internal compression ratio supercharger that supplies varying amounts of air to the engine air intake manifold that can range selectively from below through above atmospheric pressures responsive to the power requirements of the engine. The supercharger has a pair of rotors concurrently driven by the engine to move air to the engine. A slide assembly associated with screw rotors is movable with a controller relative to the rotors to bypass air to atmosphere and regulate the amount of air and pressure of the air above atmospheric pressure compressed by the screw rotors to the engine to increase the engine's efficiency. When operating at part-load unboosted, a throttle valve is operable to control the air mass flowing to the air intake manifold below atmospheric pressure to control the power of the engine.

A four stroke diesel engine combined with a supercharger is operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of rotors driven by the engine operable to move air to the engine. Gates associated with the rotors control the amount of air and pressure of the air moved by the rotors to the diesel engine.

The invention discloses a high-reliability pressure-adjusting automatic testing apparatus for a fingerprint module group. The automatic testing apparatus comprises a pedestal, a left support plate, a right support plate, a horizontal bridge plate, at least one horizontal objective table and a switching board installed on the horizontal objective table. The horizontal bridge plate is fixed between the respective upper ends of the left support plate and the right support plate. At least one lifting plate is arranged between the horizontal bridge plate and the horizontal bridge plate; and an inverted-T-shaped through hole is formed in the upper end of the lifting plate and is formed by a penetrating connecting hole and a rectangular through hole. A hanging plate is installed on the front end surface of the lifting plate; a plastic cavity box is installed at the lower end surface of the hanging plate; and a left cylinder, a right cylinder, and a testing pressing head seta are arranged in the cavity of the plastic cavity box respectively; and a testing pressing head for detecting an electrical performance of the fingerprint module group is fixed at the testing pressing head. According to the invention, the force applied on a product force can be adjusted and controlled; and products for testing are diversified. After testing by multiple times, the testing apparatus with the pressure applying tool can have a stable testing result; and testing results are consistent.

An air conditioning system is able to decrease the amount of refrigerant between a first expansion device and an injection valve and thus adjust the pressure of an injected refrigerant by decreasing the opening degree of the first expansion device and maintaining the opening degree of a second expansion device upon opening of the injection valve, thereby making the system stable upon opening of the injection valve. Furthermore, upon starting up a compressor, the opening degrees of the first and second expansion devices are partly decreased based on the start-up of the compressor and then gradually opened again, and upon completion of the start-up of the compressor, the opening amounts of the first and second expansion devices and the injection valve are controlled, thereby making the cycle more stable.

The present invention relates to an agricultural working machine (2), in particular a forage harvester (1) with a device for adjusting the ground speed v, with which the maximum ground speed v of the agricultural working machine (2) is determined as a function of the tire pressure of at least one tire (14).

The invention discloses a roadway excavation support robot suitable for coal mine roadway and tunnel construction technology, a matching multi-directional adjustable excavation support, and a conveyor for transporting multi-direction adjustable excavation supports, and proposes a support method at the same time; The excavation support robot is composed of the second transport underframe, walking frame, lifting platform, drilling and anchor manipulator, automatic positioning device, hydraulic pump station and hydraulic operating system; the adjustable support consists of beams, supporting leg cylinders, supporting cylinders, It consists of side beams and support frames; the conveyor is composed of a track with sleeve rollers or sleeve roller chains and a transport trolley running on the track; when working, the roadway excavation support robot is hinged with the tailstock of the roadheader, and then The tunnel boring machine moves together, and under the cover of the multi-directional adjustable tunneling support, bolt support is carried out on the top and two sides of the tunnel while tunneling, so as to achieve the purpose of parallel operation and double the operating rate of the tunnel boring machine, thereby improving Drilling speed.

The invention carton stapler for corrugated cases and belongs to the field of corrugated case manufacturing equipment. The carton stapler adopts a paper conveying mechanism which uses a hexagonal steel type transmission shaft to drive two small belts (1). A driving roller (2) and a driven roller (3) one each side of each small belt (1) are connected together through a small wall plate (17) on the same side, and each small belt (1) is also provided with a complete manual adjustment mechanism which adjusts axial displacement by using a threaded rod threaded rod shaft as well as an array roll type transverse positioning mechanism and a paper pressing belt (36) type paper pressing mechanism with a small roll (38), wherein the manual adjustment mechanism, the array roll type transverse positioning mechanism and the paper pressing belt (36) type paper pressing mechanism are all connected with the small wall plate (17) the transverse position of which can be adjusted. The carton stapler also adopts an automatic head nailing device which has a light controlled automatic system and is matched with the continuous paper conveying device. The transverse position of the automatic head nailing device is adjustable, the vertical position of a nail head holder (57) and the size of the paper pressure are adjustable, and a nail tongue (64) of a belt base plate (55) is changeable. The rollers can be changed easily and the transverse positions of the rollers can be adjusted conveniently, the friction is small, and the paper pressure is adjustable in terms of size. The carton stapler can not damage the surface of corrugaled board and the patterns on the surface of the corrugaled board, achieves excellent nailing quality, high efficiency and low energy consumption, and is convenient in adjustment and maintenance and is suitable to nail corrugaled boards with different thicknesses.

A diesel or diesel-like internal combustion engine drivably connected to a variable internal compression ratio supercharger that supplies varying amounts of air to the engine responsive to the load requirements of the engine. The supercharger has a pair of rotors concurrently driven by the engine to move air to the engine. A slide assembly associated with screw rotors is movable with a controller relative to the rotors to bypass air to atmosphere and regulate the amount of air and pressure of the air compressed by the screw rotors to the engine to increase the engine's efficiency.

The invention belongs to the technical field of catapult-assisted take-off of aircrafts and particularly relates to a pneumatic catapult-assisted take-off device and method used for an unmanned plane. Rubber bands are adopted for most existing catapult devices in China, the service life of the rubber bands is short, the catapult weight of the catapult devices is low, the tail end catapulting speed of catapults is low, the maintenance cost is high, and the risk in the take-off stage is high; consequentially, the application and popularization of the catapults in the field of unmanned planes are limited, and the application range is narrow. By the adoption of the pneumatic catapult-assisted take-off device and method used for the unmanned plane, the unmanned plane is made to get rid of the limitation of airport conditions, the service life of an existing catapult is prolonged, and the catapult weight of the catapult is increased.