LUBRICATION CONTROL DEVICE FOR ROTARY PISTON ENGINE

• Main Authors: KURIO NORIYUKI, SHIGEMURA TAKUO, IKUNO YUJI, YOSHIMI KOJI
• Format: Patent
• Language: English
• Published: 13.07.1987
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES; STEAM ENGINES; WEAPONS

PURPOSE:To enable an efficient lubrication when loads are lower than a prescribed one, by reducing the oil feeding rate from the first oil feeding port opened to an intake air passage, and increasing the rate from the second oil feeding port opened to the inner circumferential surface of a rotor housing. CONSTITUTION:A control unit 30 calculates the discharge quantity of lubricating oil by the signals coming from an air flowmeter 31 and a revolution sensor 32, and correcting it by the signal of an oil temperature sensor 33, controls a metering oil pump 20 so that it discharges oil at the discharge rate corresponding to the engine load or the like from the first oil feeding port 15 opened to an intake air passage 12 and the second oil feeding port 16 opened to a rotor housing 2. And, when loads are lower than a prescribed one, a variable ratio control means of a metering pump 20 is controlled so that the oil feeding rate from the first oil feeding port 15 is reduced and the rate from the second oil feeding port 16 is increased. Thus, the waste of lubricating oil due to combustion can be restrained, and further lubricating oil can be efficiently sent to sealing parts such as an apex seal 7 or the like.