Vacuum generator/amplifier for gas applications and brake booster generation method
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United States of America Patent
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Jun 15, 2021
Grant Date -
Dec 19, 2019
app pub date -
Feb 21, 2018
filing date -
Feb 21, 2017
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Abstract
A vacuum generator/amplifier system for gas applications and a brake booster generation method uses a vacuum amplifier system including a multi-lumen defining member comprising a modified venturi geometry having a converging section leading to a throat (lumen segment of minimum ID diameter), followed by a straight section culminating in to a diverging section and a port for output vacuum which is located after the throat at the beginning of the straight section. The converging section has a sinusoidal shape leading to the point of convergence, also called the throat, with a minimum internal lumen diameter D, and generates an amplified vacuum at the output with a gain ratio of four to one, with substantially reduced parasitic losses, even at low flows.
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