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Michael Willboughby Essex Coney, Roger Richards: Two stroke internal combustion engine. Innogy, Birch Stewart Kolasch & Birch, April 5, 2005: US06874453 (62 worldwide citation)

A two stroke internal combustion engine having a compressed air inlet port and an exhaust port the flow through which is controlled by suitable valves. Fuel is injected through a fuel injector. The timing of the opening of the valve is such that, as the piston approaches top dead centre and with the ...


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Michael Willboughby Essex Coney, Andrew Male, David Frankland West, Brian Charles Porter, Laurent Roger Spelliers: Passive valve assembly. Innogy, Birch Stewart Kolasch & Birch, April 26, 2005: US06883775 (61 worldwide citation)

A passive valve assembly for controlling the flow into or out of chamber (3) through a port (4). The valve assembly comprises a valve element (5) arranged to open in the direction of flow through the port. The valve element (5) has a piston (9) which is reciprocable in a cylinder (10) containing gas ...


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Michael Willboughby Essex Coney, Andrew Male, David Frankland West, Brian Charles Porter, Laurent Roger Spelliers: Passive valve assembly. Birch Stewart Kolasch & Birch, September 11, 2003: US20030168618-A1

A passive valve assembly for controlling the flow into or out of chamber (3) through a port (4). The valve assembly comprises a valve element (5) arranged to open in the direction of flow through the port. The valve element (5) has a piston (9) which is reciprocable in a cylinder (10) containing gas ...


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Michael Willboughby Essex Coney, Roger Richards: Two stroke internal combustion engine. Birch Stewart Kolasch & Birch, August 28, 2003: US20030159665-A1

A two stroke internal combustion engine having a compressed air inlet port (13) and an exhaust port (14) the flow through which is controlled by suitable valves (3, 4). Fuel is injected through a fuel injector (5). The timing of the opening of the valve is such that as the piston (2) approaches top ...


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Alexandria Bruce Wilson, Michael Willboughby Essex Coney, David John Gooch, Birendra Nath, Andrew Powell: Heat exchanger. Birch Stewart Kolasch & Birch, August 28, 2003: US20030159815-A1

A heat exchanger comprising a pressure vessel (1). A plurality of serpentines (8) convey a fluid to be heated through the pressure vessel (1) in one direction. A duct (9) surrounding the serpentines (8) conveys a second fluid in the opposite direction to give up its heat to the first fluid. The duct ...