HYDRODYNAMIC BEARING APPLIED ON A CONTACT INTERFACE OF A FLUID COMPRESSOR BASED ON A SPIRAL TYPE MECHANISM

摘要

This invention refers to a hydrodynamic bearing applied on a contact interface of a fluid compressor based on a spiral type mechanism. The aforesaid hydrodynamic bearing is located in the contact interface between the lower face of the orbiting whorl and the upper face (11) of the block (1), and comprises at least two regions (2) spaced apart between regions (3). The regions (2) have surfaces comprised of a plurality of micro-cavities (21) and the regions (3) have substantially smooth surfaces.

主权项

1. A hydrodynamic bearing applied on a contact interface of a fluid compressor based on a spiral mechanism, the fluid compressor comprising:
at least one hermetic housing, at least one electric motor, at least one block, at least one spiral type mechanism including at least one orbiting whorl and at least one non-orbiting whorl; wherein the hydrodynamic bearing is located in the contact interface between a lower face of the at least one orbiting whorl and an upper face of the at least one block, the hydrodynamic bearing comprising:
at least two first regions spaced apart between second regions;the at least two first regions including surfaces having a plurality of micro-cavities;the second regions having substantially smooth surfaces;wherein each micro-cavity has a depth between 1 μm to 30 μm;wherein each micro-cavity has a surface area between 5 μm to 100 μm;wherein each micro-cavity has a border radius between 0.01 μm to 30 μm; andwherein the micro-cavities are spaced apart by a distance between 1 μm to 100 μm.