Lubricant pump with magnetic and centrifugal traps

A hermetic compressor assembly comprising:

• a compressor housing including a quantity of liquid lubricant therein;
• a compressor mechanism disposed in said compressor housing;
• a drive shaft selectively rotatable and operably connected to said compressor mechanism;
• and
• a liquid lubricant displacement element engaged to said drive shaft;
• a support member attached to said compressor housing;
• a pivotable magnetic member disposed between said liquid lubricant displacement element and said support member;
• a suction port defined within said magnetic member, said liquid lubricant displacement element is in fluid communication with said quantity of liquid lubricant through said suction port in said magnetic member;
• and
• a thrust member, said liquid lubricant displacement element being supported by said thrust member;
• wherein at least a portion of any ferrous particles contained in said liquid lubricant are attracted to and retained by said magnetic member as said liquid lubricant is passed through said suction port of said magnetic member and said thrust member defines a magnetic particle trap cavity, said magnetic particle trap cavity being superposed by said magnetic member, whereby an additional portion of said any ferrous particles contained in said liquid lubricant is retained within said magnetic particle trap cavity under the influence of magnetic force.

A hermetic compressor assembly comprising:

• compressor housing including a quantity of liquid lubricant therein;
• a compressor mechanism disposed in said compressor housing;
• a selectively operable drive shaft driveably connected to said compressor mechanism;
• a support member;
• a liquid lubricant displacement element supported by said support member, said liquid lubricant displacement element engaged to said drive shaft, said compressor mechanism and said liquid lubricant displacement element being in fluid communication through a passage disposed in said drive shaft;
• a centrifugal particle trap cavity defined by a wall of said passage within said drive shaft and a portion of said liquid lubricant displacement element;
• a magnetic member pivotably supported by said support member;
• a thrust member superposed with said magnetic member;
• and
• a magnetic particle trap cavity disposed within a lateral face of said thrust member and being partially enclosed by a lateral surface of said magnetic member,
• wherein said liquid lubricant is urged from said sump to said compression mechanism through said passage in said drive shaft and any debris in said liquid lubricant being successively retained by said magnetic particle trap cavity and said centrifugal particle trap cavity.