Patent ID: 8137080

Claim:
An air compressor assembly, comprising: a compressor housing; an intake port defined by the compressor housing for intake of the air; a plurality of guide contours, the plurality of guide contours being disposed adjacent to the intake port, the plurality of guide contours being formed as between three and six strips that are cast into the compressor housing; a valve unit disposed adjacent to the intake port, the valve unit comprising a closing element that assumes an opened position during operation and a closed position when in a switched-off state, wherein the closing element is plate-shaped, is axially movable, and is guided by the plurality of guide contours between the opened position and the closed position; a stroke limitation element configured to limit axial movement of the closing element in the opened position; and a spring disposed between the closing element and the stroke limitation element, the spring providing a return force to the closing element to bias the closing element into the closed position, wherein the stroke limitation element is plate-shaped and further comprises a cylindrical section configured to limit the axial movement of the closing element in the opened position.