Hanon Systems

Philipp Benjack

Michael Hoffmann

Steffen Koch

Philip Gallisch

A sound attenuation arrangement for an inverter cover of an electric compressor, which is characterised in that in addition to fasteners for the inverter cover on the compressor housing of the electric compressor, a sound attenuation means for reducing noise emission via the inverter cover is provided, where the sound attenuation means is made up of a screw with a screw head and a screw shaft, and in that on the screw head a damping element is arranged, where the screw is in contact via the screw shaft with the compressor body, and via the damping element arranged on the screw head with the inverter cover, in a manner that absorbs vibrations.

Sound attenuation arrangement for an inverter cover of an electric compressor

The invention relates to a device () for damping pressure pulsations for a compressor of a gaseous fluid, in particular of a refrigerant. The device comprises a housing (), a piston element () as well as a spring element (). The housing () is developed encompassing a chamber (), with an inlet opening () and an outlet opening (). The piston element (), supported such that it is stayed across the spring element () on the housing (), is disposed within the chamber () dividing the chamber () into a first chamber volume () and a second chamber volume (), as well as being disposed movably in a direction of motion () between a first end position and a second end position. The motion of the piston element () effects a change of the chamber volumes () and of a flow cross section of the outlet opening (). The piston element () is developed as a hollow cylinder with two, at least partially closed, end faces (). The piston element () herein comprises at least one through-opening () developed as a fluidic connection between a chamber volume () and a volume encompassed by a wall of the piston element ().

Growing community of inventors

Kerpen, Germany

Philipp Benjack