Vacuum pump silencer
AssigneeAirtech Group, Inc.
InventorsVincent Imbornone, Raphael Sagher
Life of this patent
Estimating the term…
Abstract
A silencer assembly especially designed for attachment to the exhaust port of vacuum pumps and which adapts to the pumps pressure changes to regulate the outlet flow. The silencer features a perforated housing having an inner channel which connects to the discharge port of the vacuum pump and a valve assembly having a spring-loaded ball for dynamically regulating the fluid flow through the perforated housing. Once the pressure of the flow from the pump is high enough to compress a spring by pushing on a rubber ball which acts as a valve, a channel opens inside the silencer and the air can be vented through the radially distributed perforations on the housing. As the air escapes, the noise caused by the flow is reduced.
Claims9
A silencer for reducing noise generated by a fluid discharge at a discharge port of a vacuum pump, comprising:
- a housing having an inlet end attachable to the discharge port of the vacuum pump and an inner channel having an inlet port for receiving fluid discharge of the vacuum pump and a plurality of outlet ports for discharge of said fluid received from the discharge port of the vacuum pump;
- and
- valve means disposed in said inner channel for regulating the discharge rate of the fluid through said outlet ports in response to fluid discharge from the vacuum pump, said valve means comprising a coil spring and a ball forming a valve that opens under pressure of fluid discharge from the vacuum pump and allows for the discharge of fluid through said plurality of outlet ports.
Dependencies are inferred from the claim text.