Abstract: Devices, systems, and methods are disclosed for reducing leakage current in compressors, such as for heating, ventilation, and air conditioning, and refrigeration (HVAC/HVACR) systems. Several embodiments include a sensor for measuring the isolation resistance of an enclosure of a compressor. The sensor can be electronically coupled to a controller that is configured to activate a heating element mechanically coupled to the enclosure when the controller determines that the isolation resistance measured by the sensor falls indicates that the compressor is at risk of faulting. Activating the heating element causes the refrigerant mixed within the oil to evaporate, which lowers the liquid level within the compressor.

Abstract: A connecting rod assembly including a connecting rod, a bushing with an inner surface and an outer surface, and a pin connectively coupled to the piston and the connecting rod at the small end. The bushing contacts the pin on the inner surface and the connecting rod on the outer surface. The bushing may be self-lubricate when the bushing moves rotationally with respect to the connecting rod.

Abstract: In one embodiment, a connecting rod assembly is described. The connecting rod assembly may comprise a connecting rod, a bushing with an inner surface and an outer surface, and a pin connectively coupled to the piston and the connecting rod at the small end. The bushing may contact the pin on the inner surface and the connecting rod on the outer surface. The bushing may self-lubricate when the bushing moves rotationally with respect to the connecting rod.