Patents by Inventor Josef Ehrlich
Josef Ehrlich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6202623Abstract: An internal combustion engine having one or more pistons (4), each of which is mounted to reciprocate in a respective cylinder (2) and is pivotally connected to a connecting rod (6) which is connected to a respective crank (10) on a crankshaft (7). The connecting rod (6) is pivotally connected to one end (11) of an elongate link (14) which is pivotally connected to an associated crank (10) at a point intermediate its ends and whose other end constitutes a rod (18) which is restrained by a mounting (20, 26) such that it may pivot about a pivotal axis (21) parallel to the axis (8) of the crankshaft (7). The mounting includes a first movable mounting member (20) connected to a second movable mounting member (26) to be pivotable with respect thereto about the pivotal axis (21). The first movable mounting (20) is connected to the rod (18) by a connection with permits only relative sliding movement in the direction of the rod (8).Type: GrantFiled: March 10, 2000Date of Patent: March 20, 2001Assignee: Preservation Holdings LimitedInventor: Josef Ehrlich
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Patent number: 6009845Abstract: An internal combustion engine including one or more pistons, each of which is mounted to reciprocate in a respective cylinder and is pivotally connected to a connecting rod which is connected to a respective crank on a crankshaft, characterized in that the connecting rod is pivotally connected to one end of an elongate link member which is pivotally connected to the associated crank at a position intermediate its ends and whose other end constitutes a rod which is restrained by a mounting such that it may pivot about a pivotal axis parallel to the axis of the crankshaft and may move in a direction parallel to its length.Type: GrantFiled: November 10, 1998Date of Patent: January 4, 2000Assignee: Broadsuper LimitedInventor: Josef Ehrlich
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Patent number: 5218933Abstract: An internal combustion engine includes at least one piston (1) which is reciprocally received in a cylinder (2) which is coupled to a rotary output shaft (17) by a coupling (5, 22) which converts reciprocal movement of the piston into rotary movement of the output shaft. The engine is so arranged that, in use, the fuel/air mixture in the or each cylinder ignites at a predetermined ignition time in the operation cycle of the engine. The coupling is so arranged or programmed that on its compression stroke the speed of the piston deceases abruptly substantially at the ignition time and that the speed of the piston subsequently increases prior to reaching the top dead center position.Type: GrantFiled: May 27, 1992Date of Patent: June 15, 1993Assignee: Environmental Engines LimitedInventor: Josef Ehrlich
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Patent number: 4550696Abstract: A high performance two-stroke internal combustion engine comprises at least one disc inlet valve driven from a shaft via bevel gears. The shaft is driven from a pinion secured to the engine crank-shaft via a variable drive. The variable drive includes a spring which biases a cross pin to one end of a spiral slot in the shaft to maintain pinion at a position relative to the shaft which provides maximum inlet valve advance during starting. As engine revs increase the pinion progressively leads the shaft thereby retarding inlet valve timing. When the valve timing is fully retarded a bobbin of the drive is latched by a magnet to hold the valve timing fully retarded until engine revs fall.Type: GrantFiled: August 20, 1984Date of Patent: November 5, 1985Assignee: Outboard Marine CorporationInventor: Josef Ehrlich
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Patent number: 4378762Abstract: An internal combustion engine comprises a combustion chamber and a piston movable relative to the combustion chamber between top dead center and bottom dead center positions. A fuel transfer passage introduces fuel-air mixture into the combustion chamber in response to piston movement. An auxiliary chamber is also provided which is communicable with the combustion chamber in response to piston movement shortly after the ignition of a fuel-air mixture, such that high pressure ignition gases enter the auxiliary chamber. The high pressure ignition gases thereafter flow back into the combustion chamber in response to piston movement before communication chamber in response to piston movement before communication is established between the combustion chamber and the fuel transfer passage. The incoming flow of high pressure ignition gases serves to influence the normal scavenging streams.Type: GrantFiled: May 10, 1982Date of Patent: April 5, 1983Assignee: Outboard Marine CorporationInventor: Josef Ehrlich
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Patent number: 4340016Abstract: An internal combustion engine comprises a combustion chamber and a piston movable relative to the combustion chamber between top dead center and bottom dead center positions. A fuel transfer passage introduces fuel-air mixture into the combustion chamber in response to piston movement. An auxiliary chamber is also provided which is communicable with the combustion chamber in response to piston movement shortly after the ignition of a fuel-air mixture, such that high pressure ignition gases enter the auxiliary chamber. The high pressure ignition gases thereafter flow back into the combustion chamber in response to piston movement before communication is established between the combustion chamber and the fuel transfer passage. The incoming flow of high pressure ignition gases serves to influence the normal scavenging streams.Type: GrantFiled: September 5, 1980Date of Patent: July 20, 1982Assignee: Outboard Marine CorporationInventor: Josef Ehrlich
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Patent number: 4162663Abstract: Disclosed herein is an internal combustion engine comprising a cylinder, a piston movable in the cylinder between top dead center and bottom dead center positions, and an air entry port located in the cylinder adjacently above the piston when the piston is at bottom dead center and adapted to be opened and closed in response to piston movement, which air entry port extends generally tangentially from the cylinder so that air entering the cylinder through the port swirls within the cylinder, together with valve means preventing flow from the cylinder and permitting flow into the cylinder.Type: GrantFiled: June 20, 1977Date of Patent: July 31, 1979Assignee: Outboard Marine CorporationInventor: Josef Ehrlich
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Patent number: 4067302Abstract: Disclosed herein is an internal combustion engine comprising a piston movable relative to a cylinder and a crankcase between top dead center and bottom dead center positions and relative to first, second and third positions respectively spaced from top dead center position at respectively greater distances, whereby the crankcase is subject to cyclical conditions of relatively high and low pressure, a transfer chamber, a reed valve controlled port for supplying fresh air to the transfer chamber when the transfer chamber is subject to low pressure, a carburetor for supplying a fuel/air mixture to the crankcase when the crankcase is subject to low pressure, a transfor port providing communication between the transfer chamber and the crankcase during conditions of low pressure in the crankcase and during piston travel between top dead center position and the first position whereby to cause introduction into the transfer chamber of fresh air, whereby the air introduced into the chamber is isolated during piston moType: GrantFiled: February 20, 1976Date of Patent: January 10, 1978Assignee: Outboard Marine CorporationInventor: Josef Ehrlich
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Patent number: 4026254Abstract: Disclosed herein is an internal combustion engine (and a method of operation thereof) comprising a piston movable relative to a combustion chamber and to a crankcase to effect cyclical pressure variation in the crankcase in response to piston movement, a transfer passage for introducing fuel-air mixture into the combustion chamber from the crankcase in response to cyclical crankcase pressure variation, an auxiliary chamber separate from the transfer passage, and a port arrangement for providing the auxiliary chamber with pressurized air in response to cyclical crankcase pressure variation and for initiating communication of the auxiliary chamber with the combustion chamber in response to piston movement during the presence of pressurized air in the auxiliary chamber and at a time other than the time of initiation of introduction of fuel-air mixture into the combustion chamber.Type: GrantFiled: May 22, 1975Date of Patent: May 31, 1977Assignee: Outboard Marine CorporationInventor: Josef Ehrlich