4 results about "Discharge pressure" patented technology

A compressor output calculation unit having a variable displacement compressor, a condenser, a pressure reducing mechanism and an evaporator, wherein a compressor torque or power is calculated based on a detected or estimated value of a refrigerant flow rate, a detected or estimated value of a refrigerant discharge pressure, a detected or estimated value of a refrigerant suction pressure, and a compressor rotational speed, and a control unit using the same. The compressor torque or power may be estimated at a high accuracy without using a refrigerant flow sensor.

A pneumatic system operation control device for variable control of the rotation speed of an electric motor for driving an air-compressor such that constantly supplied pressure to a terminal device is achieved in accordance with a discharge pressure measurement value of the air-compressor and a supply pressure measurement value to the terminal device. The control device: stores the discharge pressure measurement value and the supply pressure measurement value; and, upon receiving input of an air pipe network model composed of data for calculating a flow of air in an air pipe network, calculates a flow rate of air supplied to the terminal device and an update value of a control setting value, and updates the control setting value to be used for variable control on the basis of the update value.

The invention discloses a cutting board prefabricating edge trimming and dividing device. The device is characterized by being formed by an edge trimming device and a dividing device which are arranged on a machine frame respectively. The position of a prefabricated board outlet of an edge trimming conveying mechanism corresponds to a board feeding conveying roller. A prefabricated board is subjected to trimming and clearing of two sides through an edge trimming knife under cooperation of the edge trimming conveying mechanism and a pressure roller, and then conveyed to a movable push plate through the board feeding conveying roller. A moving platform and the movable push plate move the prefabricated board to a board discharging conveying roller simultaneously. The prefabricated board is cut into a plurality of board pieces by a cutter assembly under the cooperation of the board discharging conveying roller and a board discharging pressure roller. The device has the advantages of improving the production efficiency, eliminating safety accidents caused by manual production, reducing the use of board, reducing the production cost and being simple in design structure, simple to operateand use and stable and reliable in equipment operation.

The invention provides a sheet sending device for a thermoplastic molding machine. The sheet sending device comprises a feeding mechanism, a discharging mechanism and a driving mechanism, wherein thefeeding mechanism comprises a feeding pressure plate, a feeding chain wheel and a feeding and carrying mechanism; the feeding pressure plate is fixed on the feeding chain wheel, and the feeding chainwheel is fixed on the feeding and carrying mechanism; the discharging mechanism comprises a discharging pressure plate, a discharging chain wheel and a discharging and carrying mechanism; the discharging pressure plate is fixed on the discharging chain wheel, and the discharging chain wheel is fixed on the discharging and carrying mechanism; the feeding chain wheel is connected with the discharging chain wheel through a chain, and a plurality of clamps are arranged on the chain; and the feeding mechanism and the discharging mechanism can be connected with the driving mechanism interchangeably.A sheet to be thermoplastic-molded is clamped by the clamps and enters the feeding mechanism, and the thermoplastic-molded sheet is sent out by the discharging mechanism. The sheet sending device caneffectively improve the working efficiency, ensures the integrity of the sheet, is precise in positioning, saves materials, improves the applicability of equipment, and improves the product qualification rate.