Method for Pulsation Damping in a Fluid-Conveying System

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This patent describes a method and system for reducing pressure pulses (pulsation damping) in fluid-conveying systems such as pipelines, pumps, and valves. The core innovation is the use of a flexible membrane (e.g., a tube or diaphragm) that flows with the fluid and is backed by an adjustable pressure pad (formed by gas or liquid) in an intermediate space. The pressure in this space is actively controlled—using sensors and a controller—to minimize the amplitude of fluid pressure pulsations, resulting in smoother, more stable fluid flow. The system can be integrated as a component in various fluid machinery (e.g., pumps, compressors) or retrofitted to existing installations.

Use CasesContent extracted from patent full text and abstract with AI.

• Industrial piping systems to minimize vibration and damage from fluid pressure fluctuations.
• Integration with pumps and compressors (such as rotary lobe pumps, eccentric screw pumps, piston pumps, and centrifugal pumps) to reduce wear and improve performance.
• Use in valves (e.g., on suction or pressure sides of pumps) to prevent pressure surges.
• Upgrading or retrofitting existing processing plants (chemical, pharmaceutical, food and beverage, water treatment, etc.) to improve reliability and efficiency.
• Applications in hygienic systems requiring easy-to-clean and compliant damping elements.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides automatic and adaptive minimization of pressure pulsations, optimizing system stability under varying operational conditions.
• Reduces noise, vibration, and mechanical wear in fluid systems, extending component lifespan.
• Improves energy efficiency by preventing energy losses due to hydraulic oscillations and pressure fluctuations.
• Easily retrofitted to existing pipelines or equipment using standard components, reducing implementation costs.
• Enables inline damping without introducing additional flow resistance, maintaining system throughput.
• Offers self-adaptive control, constantly tuning the damping effect as operating conditions change.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for pulsation damping in a fluid-conveying surface (1), in which the fluid flows along a membrane (8, 50) in a damping portion (2, 22, 29, 33, 36, 37, 49) of the system (1), which membrane is supported against a pressure pad in an intermediate space (10) formed relative to a housing wall (11). The pressure in the intermediate space (10) can be adjusted to a minimum value of the pulsation amplitude of the fluid pressure. The invention further relates to a corresponding system (1) having pulsation damping.