Global Variable Displacement Pumps Market Growth 2019-2024 has complete details about market of Variable Displacement Pumps industry, Variable Displacement Pumps analysis and current trends. A Variable Displacement Pump is a type of mechanical-electrical motor placed in a fluid channel. Built either to generate electrical power from the natural flow of fluid past it or to apply mechanical force to make stationary fluid flow in a pipe gives the variable displacement pump a dual use — adjustable capability. Such pumps have versatile app.