Element for compressing gas and method for controlling such element

• Main Authors: VAN MIEGHEM LUC, WILFRIED MATTHIS, PETTINARI DAVID
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2024
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

An element for compressing a gas, having a housing (2) with an inlet (3) and an outlet (4), which housing (2) encloses a compression chamber (5) with an outlet port (7) connected to the outlet, where in the compression chamber (5) a rotor (8) is mounted such that the compression chamber (5) is divided into a plurality of working chambers, where the element (1) is provided with a channel (10) between the outlet and the working chambers in the compression chamber (5), the working chamber is not in adjacent contact with the outlet port (7), the channel (10) being provided with an overpressure valve (11) to open the channel (10) when the pressure difference between the working chamber and the outlet (4) exceeds a preset value, characterised in that the overpressure valve (11) comprises a valve body (12) enclosing a cushion space (13) having a variable volume which is fluidly connected to the outlet by a constriction (14) such that, when the channel (10) is opened, the pressure difference between the working chamb