Entries |
Document | Title | Date |
20080271699 | Combustion Engine - The present invention relates to an internal combustion engine of piston type operating with a mixture of combustible fuel and air comprising at least one combustion chamber ( | 11-06-2008 |
20110005489 | Advanced angled-cylinder piston device - An advanced angled cylinder piston engine, pump, or compressor design. A method to determine optimum cylinder(s) orientation to achieve maximum torque. A method to determine proper cylinder(s) orientation achievable based on crankshaft and connecting rod dimensions. A cylinder, a cylinder insert sleeve, and a piston provide clearance for free operation of a connecting rod. A compensating piston provides proper cylinder volume to maintain desired compression ratio. An oil passage provides additional lubrication to cylinder wall. A crankshaft counterweight orientation provides proper crankshaft, connecting rod, and piston assembly balance. | 01-13-2011 |
20110139111 | METHOD FOR CONVERSION OF AN AIRCRAFT SPARK-IGNITION ENGINE AND AIRCRAFT ENGINE - In the case of a method for conversion of an aircraft spark-ignition engine for driving a propeller, comprising a crankcase, a crankshaft, at least one cylinder having a cylinder head, a connecting rod and a piston, at least the cylinder with the cylinder head, possibly in conjunction with the piston, are replaced by corresponding components of a diesel engine, while retaining the crankcase, the crankshaft and/or the connecting rod. | 06-16-2011 |
20110192369 | METAL GASKET - A multilayer metal gasket includes at least two metal gasket layers formed with an aligned opening and aligned opposing sealing beads surrounding the opening. A partial stopper layer is interposed between the gasket layers and is of lesser area than either of the gasket layers. The partial stopper layer extends from the opening outwardly beyond the sealing beads and is fixed to one of the layers on only one side of the sealing beads and is free on the opposite side. | 08-11-2011 |
20120227698 | MULTILAYER GASKET WITH EXTENDED RIM LABYRINTH FEATURE - A multilayer metal gasket having first and second functional layers. Each layer includes an opening for sealing a fluid passage or combustion chamber. Each layer includes a folded lip or rim bent in opposite directions and overlapping one another in a nested configuration to form a labyrinth which serves also as the compression stopper feature for the gasket assembly. Sealing beads are formed in each layer and, preferably, are arranged to contact each other in crest-to-crest orientation to perfect a seal. In one embodiment, the first rim is extended in length, and extends into and partially fills a crevice volume defined in the space between a piston and the side wall of a combustion chamber above the top piston ring. | 09-13-2012 |
20120240891 | POSITIVE DISPLACEMENT MOTOR WITH APPLICATIONS INCLUDING INTERNAL AND EXTERNAL COMBUSTION - A pressure driven apparatus comprising a housing, at least one flexible membrane located within the housing dividing the interior of the housing into at least two chambers. At least one input or exhaust cam assembly operates in conjunction with the at least one flexible membrane to provide an expansion zone within the housing. Fluid enters the housing producing movement of the flexible membrane. The flexible membrane is connected to a drive member such that the movement of the fluid within the expansion zone results in the membrane imparting a force to the drive member. The flexible membrane includes seals used to maintain a dynamic and movable seal with respect to the housing. | 09-27-2012 |
20120291743 | CONCENTRIC CYLINDER ENGINE - A concentric cylinder engine includes a toroidal outer cylinder having an inner cylinder contained therein, the inner cylinder wall comprising a sleeve assembly acting as a transfer valve. Each cylinder contains a piston, the two pistons being connected to a single crankshaft. The inner and outer piston crank throws are at least generally opposite one another, with the two pistons traveling in opposite directions during engine operation. The outer piston provides intake and compression functions, while the inner piston simultaneously provides power and exhaust functions. The concentric cylinder engine thus provides the four separate and distinct intake, compression, power, and exhaust phases of conventional Otto cycle engine operation during a single revolution of the crankshaft. The concentric cylinder engine may be constructed in multiple cylinder configurations having spark or compression ignition, in either liquid or air cooled embodiments. | 11-22-2012 |
20130000590 | METHOD FOR PRODUCING A PISTON FOR AN INTERNAL COMBUSTION ENGINE AND PISTON THAT CAN BE PRODUCED BY MEANS OF SAID METHOD - The present invention relates to a method for producing a piston ( | 01-03-2013 |
20130081589 | METHOD OF MANUFACTURING AN ENGINE BLOCK - A method for manufacturing an engine block includes removing material from the top deck of the engine block surrounding a first opening to create a first recessed area, positioning a first insert within the first recessed area, removing material from the top deck of the engine block surrounding a second opening to create a second recessed area that at least partially overlaps the first recessed area, and positioning a second insert within the second recessed area. | 04-04-2013 |
20130213339 | INTERNAL COMBUSTION ENGINE WITH LIGHT METAL ALLOY ENGINE BLOCK AND CAST IRON CYLINDER LINERS - In an internal combustion engine for a motor vehicle, having a cylinder housing in the form of a light metal alloy casting with working cylinder sections including cylinder liners which consist of rough-surface iron castings and which are integrally cast into the working cylinder sections with housing webs formed between adjacent liners, the cylinder housing has cooling channels formed in the housing webs between adjacent cylinder liners and the working cylinder sections of the cylinder housing for directly cooling the cylinder liners. | 08-22-2013 |
20140000548 | RECIPROCATING ENGINE | 01-02-2014 |
20140311437 | PISTON RING FOR A PISTON OF AN INTERNAL COMBUSTION ENGINE, AND A METHOD FOR PRODUCING SAME - The invention relates to a method for producing a piston ring ( | 10-23-2014 |
20140331957 | COMBUSTION CHAMBER STRUCTURE FOR INTERNAL COMBUSTION ENGINE - A combustion chamber structure for an internal combustion engine includes, in a piston top part, a concave portion formed eccentrically with respect to a cylinder center axis, and a tapered portion that connects an upper end face of the piston top part and a side face of the concave portion. The tapered portion is formed so that a tapered portion volume (volume of a space formed between the tapered portion and an upper wall surface of the combustion chamber) in a first portion of the piston top part is greater than a tapered portion volume in a second portion that is nearer than the first portion to an eccentric direction of the concave portion from the cylinder center axis. | 11-13-2014 |
20160040621 | BORE BRIDGE COOLING PASSAGE - A tool and a method of using the tool are provided for forming an engine component. The engine has a block defining a first cylinder and a second cylinder spaced apart by a bore bridge. The bore bridge defines a first cooling passage spaced apart from a deck face and extending transversely, and a second cooling passage positioned between the first passage and the deck face and extending transversely. The first and second passages are formed by a casting skin. In forming the engine component, a die is provided that defines a locator recess and at least one core. An insert is positioned into the recess on the die. The insert has a cast shell surrounding a lost core. The component is die cast with the die and the insert to form a cooling jacket. The insert is adapted to form the cooling passages for the bore bridge. | 02-11-2016 |