Exhaust coupling

• Main Authors: Lukas Chromek, Martin Fnukal
• Format: Patent
• Language: English
• Published: 12.10.2022
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; 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; STEAM ENGINES; WEAPONS

An exhaust coupling 10A for a pump comprises an exhaust conduit extending between an inlet aperture 30A for receiving a fluid from the pump and an outlet aperture 40 for exhausting the fluid from the conduit. The outlet aperture has a restrictor 60 operable to change its cross-sectional area. The restrictor may comprise a removable insert or a variable restrictor. The restrictor may be actuated in response to a sensed temperature, pressure and/or flow rate of the fluid, and/or in response to a user preference to reduce noise or reduce pump down time. The conduit may have sections of differing cross-sectional areas. The inlet aperture may have a smaller cross-sectional area than an adjacent section of the conduit, and may have a portion 75A extending from the conduit. The conduit may comprise at least one bend and/or flexible section.