Patents Assigned to Osakeyhtiö SKF Aktiebolag
-
Patent number: 10359149Abstract: A lubrication system comprising a motor, a positive displacement pump driven by the motor, a lubricant container in fluid communication with the positive displacement pump and at least one lubricant outlet in fluid communication with the lubricant container. The positive displacement pump is arranged to carry out at least one discharge stroke to dispense lubricant from the at least one lubricant outlet when the lubrication system is in use. The lubrication system also comprises a control unit that is arranged to determine an amount of lubricant that is dispensed from the lubricant container via the at least one lubricant outlet when the lubrication system is in use. The control unit is arranged to monitor current supplied to the motor to obtain a motor current signal, and to determine a number of the discharge strokes from the motor current signal.Type: GrantFiled: January 14, 2016Date of Patent: July 23, 2019Assignee: Osakeyhtiö SKF AktiebolagInventor: Teuvo Risto Moilanen
-
Patent number: 10273947Abstract: A drive mechanism including a pneumatic cylinder housing, a piston reciprocating in the housing between a first and second dead centers, a pumping shaft driven by the piston, a valve unit, a gas inlet, a gas outlet, the gas inlet is in fluid communication with a first chamber of the cylinder volume, and a second chamber of the cylinder volume in fluid communication with the gas outlet, when the valve unit is in a first state. The gas inlet is in fluid communication with the second chamber of the cylinder volume, and the first chamber of the cylinder volume in fluid communication with the gas outlet, when the valve unit is in a second state. The drive mechanism provides a valve unit actuator having a magnet located adjacent the valve unit and configured to alternately shift the state of the valve unit between the first state and the second state.Type: GrantFiled: June 15, 2016Date of Patent: April 30, 2019Assignee: Osakeyhtiö SKF AktiebolagInventor: Rauno Vehmaa
-
Publication number: 20160369786Abstract: A drive mechanism including a pneumatic cylinder housing, a piston reciprocating in the housing between a first and second dead centers, a pumping shaft driven by the piston, a valve unit, a gas inlet, a gas outlet, the gas inlet is in fluid communication with a first chamber of the cylinder volume, and a second chamber of the cylinder volume in fluid communication with the gas outlet, when the valve unit is in a first state. The gas inlet is in fluid communication with the second chamber of the cylinder volume, and the first chamber of the cylinder volume in fluid communication with the gas outlet, when the valve unit is in a second state. The drive mechanism provides a valve unit actuator having a magnet located adjacent the valve unit and configured to alternately shift the state of the valve unit between the first state and the second state.Type: ApplicationFiled: June 15, 2016Publication date: December 22, 2016Applicant: Osakeyhtiö SKF AktiebolagInventor: Rauno Vehmaa
-
Publication number: 20160208983Abstract: A lubrication system comprising a motor, a positive displacement pump driven by the motor, a lubricant container in fluid communication with the positive displacement pump and at least one lubricant outlet in fluid communication with the lubricant container. The positive displacement pump is arranged to carry out at least one discharge stroke to dispense lubricant from the at least one lubricant outlet when the lubrication system is in use. The lubrication system also comprises a control unit that is arranged to determine an amount of lubricant that is dispensed from the lubricant container via the at least one lubricant outlet when the lubrication system is in use. The control unit is arranged to monitor current supplied to the motor to obtain a motor current signal, and to determine a number of the discharge strokes from the motor current signal.Type: ApplicationFiled: January 14, 2016Publication date: July 21, 2016Applicant: Osakeyhtiö SKF AktiebolagInventor: Risto MOILANEN
-
Patent number: 8844678Abstract: The purpose of the invention is an arrangement for the lubrication of saw chains, which comprises a grease tank (3) and apparatus for feeding grease via piping (4) to a saw chain. The apparatus for feeding grease to the saw chain (2) comprise a hydraulic device (3, 5, 6, 7), which is adapted to be powered by a hydraulic system (8, 9).Type: GrantFiled: October 21, 2011Date of Patent: September 30, 2014Assignee: Osakeyhtiö SKF AktiebolagInventor: Jouko Ilmarinen