Patent · US Active

Vacuum pump having a silencer

US11274668B2 · kind B2 · utility

0Cited by

10References

9Claims

0Family size

Assignee

Leybold GmBH · DE

Inventors

Dieter Kolvenbach · Cologne, DE
Otmar Cornely · Cologne, DE
Peter Birch · Brighton, GB

Key dates

Filing date	Mar 16, 2017
Grant date	Mar 15, 2022
Priority date	—
Expiry date	Apr 20, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2250/101
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A vacuum pump comprises rotor elements arranged in a suction chamber. An outlet duct is connected to an exhaust pipe. For the purpose of silencing, sound expansion spaces are provided in the outlet duct, which are integrated into the pump housing. Alternatively or in addition to these sound expansion spaces, sound expansion spaces may be provided in an inlet duct which is used for the inlet of gas ballast, said sound expansion spaces being preferably likewise integrated into the pump housing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.