52results about How to "Increase suction pressure" patented technology

A method and an apparatus for automatically removing pieces of luggage that have different surface properties and dimensions and getting the pieces of luggage ready for further transport by means of a gripper that is hingedly connected to a robot arm is described. The method includes: a) moving the gripper and the container that is to be emptied close together; b) determining the first piece of luggage to be removed; (c) gripping the piece of luggage using a horizontal suction elements (3) and withdrawing the luggage horizontally; d) if the vertical suction elements (4) are not yet able to sufficiently grip the luggage, the vertical suction elements (4) are repositioned and turned off, the vertical suction elements (5) are repositioned, and then turned on to re-grip the piece of luggage.

An outdoor unit control unit 200 has a defrosting operation condition table 300a that defines an activation rotational speed Cr in accordance with a total sum of flow rate coefficients Cva that is a total sum of flow rate coefficients Cv representing capacities of indoor expansion valves 52a to 52c. The outdoor unit control unit 200 calculates the total sum of the flow rate coefficients Cva by adding the flow rate coefficient Cv of each of the indoor expansion valves 52a to 52c, and refers to the defrosting operation condition table 300a, so as to determine the activation rotational speed Cr. Then, the outdoor unit control unit 200 activates a compressor 21 at the determined activation rotational speed Cr when starting a defrosting operation, maintains this activation rotational speed Cr for a predetermined time from the start of the defrosting operation, and drives the compressor 21.

A floor cleaning device employing a brush assembly is provided. The brush assembly includes a front brush and a rear brush that spin about an axis line generally parallel to the surface being cleaned. The spinning rotation of the brush along with the configuration of the housing help provide an airflow path that sucks debris from the surface being cleaned. The debris is directed to a hopper wherein larger items are captured and smaller items are suctioned into a vacuum bag.

A robot cleaner comprises a main body having a suction port at a bottom surface thereof, a pair of wheel assemblies disposed at both sides of the main body, and configured to move the main body, a dust box mounted to contact the bottom surface of the main body, and configured to collect dust sucked through the suction port, a filter unit configured to filter air discharged from the dust box, a suction fan configured to form a suction pressure on a suction channel defined by the suction port, the dust box and the filter unit, and a battery disposed at a side of the dust box.

The invention relates to a method of optimizing internal negative pressure of a vacuum device of a textile machine for making cross wound bobbins. The vacuum device has a suction machine group. The textile machine comprises a plurality of workstations with diversified vacuum demands. To satisfy the vacuum demands, the negative pressure should not be lowered to a specified level satisfying a basic demand. The suction power of the suction machine group is adjusted through an adjusting mechanism in a way to provide a negative pressure greater than the specified level as a working requirement when a yarn with higher vacuum demands is reported to be broken during a yarn connecting period or a yarn is cut. According to the embodiments, a yarn head on the side of a winding bobbin is successfully found through the sensor. A success signal is sent to the adjusting mechanism of the vacuum device. Later, a request for higher vacuum demands for related workstation is deleted in the adjusting mechanism.

An air supply apparatus and method for a fuel cell, which supplies high-pressure air while avoiding a surge phenomenon of a turbo type compressor in a fuel cell system to which the turbo type compressor is applied is provided. In particular, a portion of air from an outlet of a compressor to an inlet of the compressor is recirculated to the supply of air supplied from the compressor to a stack. This recirculated air and external air introduced from the outside are mixed and supplied to the inlet of the compressor at a sufficiently high air pressure, allowing the compressor to avoid a surge region and enabling the supply of air with a high pressure and a low flow rate.

The invention provides an integrated type dust-removal desulfurizing tower. A vertical lower part in an absorbing tower barrel body is provided with a cyclone dust collector; the upper end of the absorbing tower barrel body is provided with a dual-desulfurizing and dust-collecting device; the dual-desulfurizing and dust-collecting device comprises an intestine-shaped smoke gas guide and desulfurizing channel and a spraying frame; the lower end of the intestine-shaped smoke gas guide and desulfurizing channel is communicated with the cyclone dust collector to ventilate; the upper gas outlet port extends into the absorbing tower barrel body, and the horizontal section is provided with a vertical smoke gas recirculating dust-collecting channel which is communicated with a soot inlet; an umbrella-shaped smoke gas diffusing cover and a spray head are arranged above the gas outlet port; and a funnel-shaped smoke gas dispersing grid which is used for dispersing gas flow in the adsorbing towerbarrel body and recycling a desulfurizing agent sprayed by the spraying frame is mounted on the spray head in a communication mode. The integrated type dust-removal desulfurizing tower adopts a dust-collecting and desulfurizing vertical integrated design, is small in floor space, is compact in structure, is less in desulfurizing liquid, is high in desulfurizing efficiency, and is excellent in comprehensive performance.

The invention discloses an air multiplication-based condensation adsorption ionization purification cooking fume treatment system which comprises a case (1) and an exhaust channel, wherein a suction device, a condensation adsorption recovery device and a flue gas ionization purification device are sequentially arranged in the case (1) from the left to right; and the suction device is connected with the condensation adsorption recovery device through an Archimedes spiral channel (6). According to the system, harmless emission of the treated flue gas is realized, the environment is protected, and the system can be applied to household cooking fume treatment.

The invention provides an air conditioner system which comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a gas-liquid separator and an ejector. A liquid outlet of the gas-liquid separator is connected with the outdoor heat exchanger through a fifth pipeline, the indoor heat exchanger is connected with a first inlet of the ejector through a sixth pipeline, the outdoor heat exchanger is connected with a second inlet of the ejector through a seventh pipeline, and an outlet of the ejector is connected with an input port of the gas-liquid separator through an eighth pipeline. By the adoption of the technical scheme, during heating, expansion work of a refrigerant is utilized through the ejector, the pressure of the air suction end of a compressor isimproved through the ejector, and the heating capacity and energy efficiency ratio of the air conditioner system in the low-temperature working conditions are improved, so that the requirements of theair conditioner system for the high load and the high pressure ratio are met, and the heating capacity and energy efficiency ratio of the air conditioner system in the low-temperature environment areimproved.

The invention proposes a method for separating methane (LNG) from a methane-containing synthesis gas (SYN) in low temperature separation equipment (10). The low temperature separation equipment includes a refrigerant circuit having at least one expander (X1) and at least one separating column (S2) having a condenser (E5), and A portion of compressed and cooled refrigerant from the refrigerant circuit is supplied to the at least one expander (X1) and the condenser (E5) respectively. A primary portion of the refrigerant which is cooled to an intermediate temperature (TI) from a starting temperature (TA) is supplied to the at least one expander (X1). A secondary portion of the refrigerant which is firstly cooled to an intermediate temperature (TI) from a starting temperature (TA) and then cooled to a lower final temperature (TE) is supplied to the condenser (E5). The invention also relates to equipment (10, 11, 12) used for implementing the method according to the invention.

A hydraulic power steering system which includes a tank and a power steering pump which takes in a pressure medium from an intake area which is decoupled from the prevailing atmospheric pressure on the side of the tank wall and delivers it under pressure to the power steering system. A valve device builds up a pre-pressure in the intake area and prevents a negative pressure and a positive pressure from building up on the interior of the oil tank.

Disclosed is a system for treating exhaust fluid from semiconductor manufacturing equipment in which cleaning gases decomposed by a plastic apparatus alternately flow towards a front rotor region (a main rotor unit) and a rear rotor region (a subsidiary rotor unit) of a booster pump and then flow towards a dry pump, and thus uniformly react with process byproducts present throughout the whole area in a vacuum pump including the booster pump and the dry pump so as to improve removal efficiency of the process byproducts. Further, the retention time of the cleaning gases decomposed by the plasma apparatus in the vacuum pump is increased by adjusting the pressure in the pump with the rotational speed of a motor, and thus the reaction time of the cleaning gases with the process byproducts is increased, so as to further improve removal efficiency of the process byproducts, such as SiO₂ powder.

The invention relates to a follower plate device for sealing and evacuating a container that has a cylindrical inner contour and contains a particularly paste-like liquid (6), said device comprising aseal (8) arranged on a periphery of the device (2) and designed so as to be able to to be inserted into the cylindrical inner contour of the container (4) such that it seals around the periphery, andmarking the boundary between an outer side (10) of the device (2) and an inner side (12) of the device (2), and a line (20) extending through from the inner side to the outer side of the follower plate device, arranged on the outer side (10) for connecting to a line connection (18) leading further to an evacuation pump (16). The invention is characterized by a replaceable open-pored porous component (22) through which the line (20) is guided.

A robotic vacuum cleaner includes: an autonomously moving vacuum cleaner body; a suction nozzle mounted so as to be able to ascend/descend or swing relative to the vacuum cleaner body; and a support member for supporting the suction nozzle so that the suction nozzle can ascend/descend or swing. Accordingly, driving performance is improved due to easy handling of a changing floor height, and an operation capable of assisting a vacuum cleaner in climbing across an obstacle may be achieved. In addition, even when the floor height changes greatly, the cleaning performance can be improved by maintaining the surface pressure of the suction nozzle and increasing the suction pressure.

A method of operating a refrigerant circuit (10) of a cooling system of a vehicle in cooling system mode is disclosed, the refrigerant circuit having a chiller branch (1.0) which includes a chiller (1) and a first expansion element (AE1) connected upstream from it and being thermally coupled to a coolant circuit (1.1); at least one interior evaporator branch (2.0) connected in parallel with the chiller branch (1.0), comprising an interior evaporator (2), a second expansion element (AE2) connected upstream from it, and a segmentation element connected downstream from the interior evaporator (2), being adapted to prevent a backflow of refrigerant into the interior evaporator; a refrigerant compressor (3); and a condenser or gas cooler (4), wherein the cooling system mode is carried out in single chiller mode by closing the second expansion element (AE2) and aspirating the refrigerant from the interior evaporator by the starting or already started refrigerant compressor (3).