US 10,041,419 B2 · Valve flap device

Abstract

A valve flap device having at least one valve housing having a shaft comprising a bearing surface and a valve axis, the shaft being rotationally supported about the valve axis by means of the bearing surface in the valve housing. A bearing element having a sliding bearing surface, wherein the bearing surface of the shaft contacts the sliding bearing surface. A bearing housing provided on the valve housing, in which the bearing element is supported at least in the radial direction to the valve axis, wherein the bearing element has an outer surface contacting the bearing housing. The support of the shaft is intended to be sufficiently tightly sealed, even for gaseous media, while simultaneously ensuring precise and statically determinate support. To this end, the bearing element is designed as a separate component coupled to the bearing housing about the valve axis with respect to the circumferential direction, such that the relative position between the bearing element and the bearing housing does not change in the circumferential direction when the shaft is rotated.

Claims13

Dependent claims

A valve flap device, comprising at least:

a) one valve housing
b) a shaft which can turn about a valve axis with a bearing surface for a bearing in a radial direction to the valve axis and with a shaft shoulder for a bearing in an axial direction to the valve axis,
c) a bearing element bearing the shaft in the valve housing with a sliding bearing surface for the bearing surface of the shaft and with a supporting surface in direct contact with the shaft shoulder, wherein the bearing element is mounted in a bearing housing able to move in both axial directions relative to the shaft,
d) the bearing housing fastened to the valve housing, in which the shaft and the bearing element are arranged, for radial support of the bearing element,
e) a spring element by which the bearing element is pretensioned relative to the bearing housing in the axial direction and in direct contact against the shaft shoulder, wherein
f) the bearing element is directly coupled in a form-fitting manner to the bearing housing, about the valve axis that prevents a relative rotary movement with respect to a circumferential direction between the bearing housing and the bearing element.

3 more elements

Dependencies are inferred from the claim text.

Valve flap device

Life of this patent

Valve flap device

Life of this patent

Abstract

Claims13