Inlet guide vane assembly
An inlet guide vane assembly is provided. The inlet guide vane assembly includes a housing, a rotating shaft rotatably located in the housing, a vane portion connected to the rotating shaft, a bushing portion located between the rotating shaft and the housing, and an elastic portion located between the bushing portion and the rotating shaft.
1. An inlet guide vane assembly comprising:
a housing;
a rotating shaft disposed in the housing;
a vane portion connected to the rotating shaft;
a bushing portion disposed between the rotating shaft and the housing; and
an elastic portion disposed between the bushing portion and the rotating shaft,
wherein the elastic portion comprises:
a body portion; and
a protruding portion protruding from the body portion,
wherein an insertion groove into which the elastic portion is inserted is formed on an outer surface of the rotating shaft, and
wherein a portion of the insertion groove corresponding to the protruding portion and the body portion, and a portion of the insertion groove corresponding to only the body portion have different depths.
2. The inlet guide vane assembly of claim 1 , wherein the protruding portion protrudes from an inner surface of the body portion toward the rotating shaft.
3. The inlet guide vane assembly of claim 2 , wherein the body portion is formed in an annular shape, and the protruding portion comprises a plurality of protruding portions space apart from each other.
4. The inlet guide vane assembly of claim 1 , wherein the protruding portion and the rotating shaft are in line contact with each other.
5. The inlet guide vane assembly of claim 1 , wherein a surface of the protruding portion contacting the rotating shaft is curved.
6. An inlet guide vane assembly comprising:
a housing;
a rotating shaft disposed in the housing;
a vane portion connected to the rotating shaft;
a bushing portion disposed between the rotating shaft and the housing; and
an elastic portion disposed between the bushing portion and the rotating shaft,
wherein the elastic portion comprises:
a first case; and
a second case coupled to the first case and configured to move corresponding to the first case,
wherein the elastic portion further comprises a damping fluid between the first case and the second case.
7. The inlet guide vane assembly of claim 6 , wherein an insertion groove into which the elastic portion is inserted is formed on an outer surface of the rotating shaft.
8. The inlet guide vane assembly of claim 6 , further comprising:
a first gear disposed on the rotating shaft and configured to rotate the rotating shaft; and
a second gear connected to the first gear and configured to rotate the first gear.