Centrifugal filter for removing soot from engine oil

A centrifuge housing supporting a centrifuge rotor for rotation about a predetermined axis for removal of contaminant from fluid, the centrifuge housing comprising:

• support body adapted to mount to a vehicle having an internal centrifuge rotor chamber in which the centrifuge rotor is disposed for rotation;
• a bearing support element carrying bearings supporting the centrifuge rotor for rotation about a predetermined axis;
• a pair of spaced apart vibration isolators comprised of resilient rubber material supporting the bearing support element therebetween and interposed between the bearing support element and support body adapted to reduced vibrations from the support body to the bearing support element wherein the bearing support element and therefore the centrifuge rotor are adapted to move relative to the support body via shifts in the vibration isolators;
• wherein the bearing support element comprises a support shaft, and upper and lower mounting brackets, each mounting bracket defining a cavity receiving an end of the support shaft, the bearings including an upper bearings set and a lower bearings set, each set having an inner race mounted to the drive shaft, each bracket being supported by one of the vibration isolators;
• and
• wherein each vibration isolator is a tubular rubber ring including an outward projecting mounting flange, the tubular ring closely fitted over the mounting bracket and secured thereto by an expandable and retractable clamp ring, the mounting being clamped to the support body.

A centrifuge housing supporting a centrifuge rotor for rotation about a predetermined axis for removal of contaminant from fluid, the centrifuge housing comprising:

• a support body adapted to mount to a vehicle having an internal centrifuge rotor chamber in which the centrifuge rotor is disposed for rotation;
• a bearing support element carrying bearings supporting the centrifuge rotor for rotation about a predetermined axis;
• at least one vibration isolator comprised of resilient rubber material interposed between the bearing support element and support body adapted to reduced vibrations from the support body to the bearing support element;
• and
• further comprising an electrical motor carried by the at least one vibration isolator, the electrical motor fixed relative to the centrifuge rotor driving the centrifuge rotor about the predetermined axis, such that the electrical motor is movable relative to the support body through the vibration isolator.

A centrifuge housing supporting a centrifuge rotor for rotation about a predetermined axis for removal of contaminant from fluid, the centrifuge housing comprising:

• a support body adapted to mount to a vehicle having an internal centrifuge rotor chamber in which the centrifuge rotor is disposed for rotation;
• a bearing support element carrying bearings supporting the centrifuge rotor for rotation about a predetermined axis;
• at least one vibration isolator comprised of resilient rubber material interposed between the bearing support element and support body adapted to reduced vibrations from the support body to the bearing support element;
• wherein the at least one vibration isolator supports the bearing support element, wherein the bearing support element and therefore the centrifuge rotor are adapted to move relative to the support body via shifts in the at least one vibration isolator;
• and
• further comprising a side oil outlet axially offset above the centrifuge rotor adapted to feed unfiltered fluid into the centrifuge rotor through an annular inlet in the centrifuge rotor coaxial about the predetermined axis, the side oil inlet being carried by the at least one vibration isolator wherein the side oil outlet is continuously aligned in fixed relationship with the annular inlet during all shifts in the bearing support element and centrifuge rotor relative to the support body wherein oil spillage is prevented.

A centrifuge for removal of contaminant from fluid, the centrifuge comprising:

• a support housing defining a centrifuge rotor chamber in which the centrifuge rotor is adapted to rotate and including a support shaft on the predetermined axis having bearings mounted thereon carrying the centrifuge for rotation about the predetermined axis;
• a centrifuge rotor being carried by the bearings for rotation about a predetermined axis;
• and
• an electrical motor supported by the support housing comprising a stator supported by the outer support body and a rotor, the rotor comprising a drive sleeve coaxial about the support shaft holding a magnet, the drive sleeve fixed to the centrifuge rotor such that the rotor and drive sleeve rotate in unison.