90results about How to "Stable oil supply" patented technology

The invention relates to the technical field of lubricating systems, and discloses a control method for automatic judgment and switching of an oil pump fault of a lubricating system. The control method comprises the following processes that step 1, an oil supply mother tube is provided with a low pressure switch, whether the low pressure switch of the oil supply mother tube sends a pressure signaland continues for a period of time or not is judged, if yes, a standby pump is started, and the standby pump works together with a main pump; step 2, the oil supply mother tube is further provided with a high pressure switch, whether the high pressure switch sends a pressure signal and continues for a certain period of time or not is judged, if yes, the standby pump stops working, the main pump and the lubricating system operate normally, otherwise, a step 3 is performed; and step 3, a main pump outlet is provided with a low point pressure switch, whether the pressure switch at the main pumpoutlet sends a pressure signal and continues for a period of time or not is judged, if yes, the standby pump operates as a main pump of a next construction period, and the main pump stops working andis maintained. The control method for automatic judgment and switching of the oil pump fault of the lubricating system ensures the safety of the whole system, detects a fault point in time, and improves the maintenance efficiency.

The invention discloses a horizontal type rotating compressor for an electric car air conditioner and a work method. The compressor comprises a shell, a controller arranged on the outer side of the shell, a motor, a pump body, a low-pressure air suction pipe and a high-pressure exhaust cyclone separator, the motor and the pump body are arranged in the shell, and the low-pressure air suction pipe and the high-pressure exhaust cyclone separator are distributed on the shell. The pump body adopts a non-circular air cylinder as a supporting part, the supporting part and the annular end face in themiddle segment of the shell are sealed and fixed, the interior of the compressor shell is divided into a low-pressure cavity and a high-pressure cavity, a motor is located in the low-pressure cavity,an oil pond is located in the high-pressure cavity, the radial extending part of an auxiliary bearing of the pump body is provided with an oil supply hole, the auxiliary bearing and crankshaft eccentric portions are provided with spiral oil grooves, the air suction and exhaust pressure difference is used for supplying the lubricating oil into an auxiliary bearing unloading oil groove from the oilpond, and through the spiral oil grooves, the lubricating oil is supplied to a main bearing; and the compressor oil seal amount is reduced, the oil level stability is maintained, the oil supply problem of an existing horizontal type rotating compressor can be solved, and meanwhile, air suction can be used for cooling the motor and the controller.