With Lubrication Means Patents (Class 123/190.13)
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Patent number: 8839757Abstract: A rotary valve internal combustion engine has a piston connected to a crankshaft and reciprocatable in a cylinder, a combustion chamber being defined in part by the piston, and a rotary valve rotatable in a valve housing fixed relative to the cylinder, the rotary valve having a valve body containing a volume defining, in part, the combustion chamber and further having a port giving, during rotation of the valve, fluid communication successively to and from the combustion chamber via inlet and exhaust ports.Type: GrantFiled: February 17, 2010Date of Patent: September 23, 2014Assignee: RCV Engines LimitedInventor: Keith Lawes
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Patent number: 8813714Abstract: There is disclosed a method for cylinder lubrication of large diesel engines, such as marine engines. Injection of lubricating oil is performed via a number of injection units that correspond to a multiple of the cylinder number in the engine. There is desired an efficient distribution of the lubricating oil, not only across the periphery of the cylinder, but also across the travel of the piston in the cylinder in order thereby to reduce the consumption of lubricating oil. This is achieved in that lubricating oil is supplied by a combination of injection of a first part of the lubricating oil directly on a ring area of the cylinder wall before the passage of the piston and an injection of a second part of the lubricating oil directly onto the piston during its passage.Type: GrantFiled: June 18, 2010Date of Patent: August 26, 2014Assignee: Hans Jensen Lubricators A/SInventor: Peer Bak
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Patent number: 8813709Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure.Type: GrantFiled: November 17, 2010Date of Patent: August 26, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventor: Mathias Boegershausen
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Patent number: 8602167Abstract: There is described a hydraulic lubricating apparatus (252) for dosing cylinder lubricating oil, including a housing which via one or more valves (220) is connected to a source for supplying hydraulic oil (262) and cylinder lubricating oil (not shown), a number of hydraulic cylinders each having a hydraulic piston (6) and which may be pressurized by hydraulic oil. Furthermore, there are a number of injection units (251) corresponding to a multiple of the cylinder (250) number in the engine, and which are connected with each their dosing cylinder by a dosing piston (21). Also, there is provided a distributor plate (7) which at one side is in contact with the dosing pistons (21) and which at its other side is in contact with the hydraulic pistons (6) for displacing the distributor plate for actuating the dosing pistons.Type: GrantFiled: May 16, 2008Date of Patent: December 10, 2013Assignee: Hans Jensen Lubricators A/SInventors: Jan Aamand, Peer Bak
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Publication number: 20130146013Abstract: An internal combustion engine is provided. Facing pistons eliminate a cylinder head, thereby reducing heat losses through a cylinder head. Facing pistons also halve the stroke that would be required for one piston to provide the same compression ratio, and the engine can thus be run at higher revolutions per minute and produce more power. An internal sleeve valve is provided for space and other considerations. A combustion chamber size-varying mechanism allows for adjustment of the minimum size of an internal volume to increase efficiency at partial-power operation. Variable intake valve operation is used to control engine power.Type: ApplicationFiled: February 4, 2013Publication date: June 13, 2013Applicant: PINNACLE ENGINES, INC.Inventor: PINNACLE ENGINES, INC.
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Patent number: 8365697Abstract: An internal combustion engine is provided. Facing pistons eliminate a cylinder head, thereby reducing heat losses through a cylinder head. Facing pistons also halve the stroke that would be required for one piston to provide the same compression ratio, and the engine can thus be run at higher revolutions per minute and produce more power. An internal sleeve valve is provided for space and other considerations. A combustion chamber size-varying mechanism allows for adjustment of the minimum size of an internal volume to increase efficiency at partial-power operation. Variable intake valve operation is used to control engine power.Type: GrantFiled: June 4, 2009Date of Patent: February 5, 2013Assignee: Pinnacle Engines, Inc.Inventor: James M. Cleeves
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Publication number: 20090266329Abstract: An internal combustion engine is provided. Facing pistons eliminate a cylinder head, thereby reducing heat losses through a cylinder head. Facing pistons also halve the stroke that would be required for one piston to provide the same compression ratio, and the engine can thus be run at higher revolutions per minute and produce more power. An internal sleeve valve is provided for space and other considerations. A combustion chamber size-varying mechanism allows for adjustment of the minimum size of an internal volume to increase efficiency at partial-power operation. Variable intake valve operation is used to control engine power.Type: ApplicationFiled: June 4, 2009Publication date: October 29, 2009Applicant: CLEEVES ENGINES INC.Inventor: James M. Cleeves
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Patent number: 6321699Abstract: A rotary valve is disclosed suitable for replacement of poppet valves. The valve is temperature controlled through a combination of heat transfer techniques and means for reducing heat transfer between gas flows and the valve components. Assymetric geometry is used in the seals to reduce wear and friction, and a removable combustion chamber in the valve housing is used to facilitate fabrication, servicing and performances. A prototype of the valve was developed for a 30 cubic inch displacement four-stroke spark-ignition engine. The gas seals and lubricated parts of the rotary valve have been found to remain below 400 degrees Fahrenheit during test runs wherein the valve controlled gas flows and has maintained a brake mean effective pressure of 108 to 121 psi for periods of up to an hour. The valve uses pure rotation, and can be dynamically balanced for operation to the peak RPM permissible with reciprocating pistons. A four-stroke engine converted to rotary valving needs very few parts.Type: GrantFiled: August 25, 1998Date of Patent: November 27, 2001Inventor: Richard Berkeley Britton