Abstract: A method of forming a flapper assembly (200) for a throttle valve (100) is provided. The method includes steps of forming a flapper (110) comprised of hub (112) having an opening (114) and at least one vane (116a,b) coupled to the hub (112), disposing a shaft (210) in the opening (114), and pressing a punch (P) into an outer surface (112a) of the hub (112) such that a torque dimple (118) extends from the hub (112) into the shaft (210) to fasten the flapper (110) to the shaft (210).

Abstract: A system for an engine (101) comprises a heat recovery system and a gaseous fuel supply system. The heat recovery system comprises a first reservoir (104) for fluid, at least one evaporator (121) for transferring heat from an engine to the fluid, a vapour expander (129) for converting fluid vapour energy into motive power, and a condenser (134). The gaseous fuel supply system comprises a second reservoir (90) for liquefied gaseous fuel and a fuel evaporator (91) for expanding liquefied gaseous fuel into gaseous fuel for the engine. The condenser (134) is in thermal contact with the fuel evaporator (91).

Abstract: A method of forming a flapper assembly (200) for a throttle valve (100) is provided. The method includes steps of forming a flapper (110) comprised of hub (112) having an opening (114) and at least one vane (116a,b) coupled to the hub (112), disposing a shaft (210) in the opening (114), and pressing a punch (P) into an outer surface (112a) of the hub (112) such that a torque dimple (118) extends from the hub (112) into the shaft (210) to fasten the flapper (110) to the shaft (210).

Abstract: A butterfly valve (100) is provided according to the invention. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103) and a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending through the valve bore (109), a thermal conductor ring (156) fitted over an end of the valve shaft (121), and at least one compression ring (152) mounted to the thermal conductor ring (156) and located within the shaft bore (112). The at least one compression ring (152) fits partially into and extends partially out of a corresponding at least one ring groove (153) in the thermal conductor ring (156), with the at least one compression ring (152) substantially sealing the thermal conductor ring (156) to an actuator-side shaft bore (112A).

Abstract: An inlet throttle (100) in provided. The inlet throttle (100) comprises a housing (110) with an aperture (112) adapted to channel a flow stream through the housing (110), a flapper (120) disposed inside the aperture (112) and rotatably coupled to the housing (110) along an axis of rotation (X), and two actuators (130a,b) with drive shafts (132a,b) coupled to opposite ends of the flapper (120) such that the drive shafts (132a,b) rotate coaxial with the axis of rotation (X).

Abstract: A high-temperature butterfly valve (100) is provided. The high-temperature butterfly valve (100) includes a valve assembly (110), a valve actuator (123) configured to couple to the valve assembly (110), with the valve actuator (123) including an actuator shaft (126) configured to couple to a valve shaft (121) of the valve assembly (110), and a fluid cooling system (225) configured to flow a cooling fluid through at least a portion of the valve actuator (123).

Abstract: A butterfly valve (100) is provided. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103), with the valve bore (109) including an upstream valve bore portion (109U) and a downstream valve bore portion (109D), a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending substantially across the valve bore (109), and a valve flap (107) affixed to the valve shaft (121) and configured to be rotated by the valve shaft (121). The valve flap (107) is configured to rotate between a closed orientation blocking the valve bore (109) and an open orientation. The valve flap (107) is affixed on an upstream valve bore portion side of the valve shaft (121), wherein incoming fluid presses the valve flap (107) against the valve shaft (121).

Abstract: A locking pneumatic piston (100) is provided. The locking pneumatic piston (100) includes a piston rod (113) connected to a piston (120) located in a piston chamber (103) and extending out of the piston chamber (103). The locking pneumatic piston (100) further includes a locking seal (124) extending around and positioned at a circumferential surface (126) of the piston (120) and an internal pneumatic channel (127) extending through at least a lengthwise portion of the piston rod (113) and through the piston (120) to the locking seal (124). When a pneumatic locking pressure is provided to the internal pneumatic channel (127), the pneumatic locking pressure extends the locking seal (124) at least partially outward and away from the piston (120) and presses against the inner surface (104) of the piston chamber (103), substantially locking the piston (120) in place within the piston chamber (103).

Abstract: A butterfly valve (100) is provided. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103), with the valve bore (109) including an upstream valve bore portion (109U) and a downstream valve bore portion (109D), a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending substantially across the valve bore (109), and a valve flap (107) affixed to the valve shaft (121) and configured to be rotated by the valve shaft (121). The valve flap (107) is configured to rotate between a closed orientation blocking the valve bore (109) and an open orientation. The valve flap (107) is affixed on an upstream valve bore portion side of the valve shaft (121), wherein incoming fluid presses the valve flap (107) against the valve shaft (121).

Abstract: A high-temperature butterfly valve (100) is provided. The high-temperature butterfly valve (100) includes a valve assembly (110), a valve actuator (123) configured to couple to the valve assembly (110), with the valve actuator (123) including an actuator shaft (126) configured to couple to a valve shaft (121) of the valve assembly (110), and a fluid cooling system (225) configured to flow a cooling fluid through at least a portion of the valve actuator (123).

Abstract: A butterfly valve (100) is provided according to the invention. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103) and a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending through the valve bore (109), a thermal conductor ring (156) fitted over an end of the valve shaft (121), and at least one compression ring (152) mounted to the thermal conductor ring (156) and located within the shaft bore (112). The at least one compression ring (152) fits partially into and extends partially out of a corresponding at least one ring groove (153) in the thermal conductor ring (156), with the at least one compression ring (152) substantially sealing the thermal conductor ring (156) to an actuator-side shaft bore (112A).

Abstract: A two-part valve (100) is provided according to the invention. The two-part valve (100) includes a valve body (104) including a valve mechanism (103), with the valve mechanism (103) including an actuation member (107), a valve flange (105) formed on the valve body (104), a valve actuator (123) configured to couple to the valve body (104), with the valve actuator (123) including an actuator shaft (126) configured to couple to the actuation member (107) of the valve mechanism (103), an actuator flange (124) formed on the valve actuator (123), and a clamp configured to clamp the actuator flange (124) to the valve flange (105), thereby removably affixing the valve actuator (123) to the valve body (104).

Abstract: A thermo-hydrolysis reactor (1) for producing ammonia-containing gas by heating an aqueous solution of urea is described. The reactor (1) comprises an elongate vessel (2) having a middle tubular section, an enlarged lower section (4) having an inlet (5) for the urea solution, and an enlarged upper section (3) having an outlet (6) therein for the ammonia-containing gas. The reactor (1) is adapted such that, in use, heat transmitted through the walls of the reactor (1) from an external heat source heats the urea solution causing it to hydrolyse producing the ammonia-containing gas.

Abstract: A device 1, capable of being placed in-line in the exhaust conduit of an IC engine upstream of an SCR catalyst, which produces a gaseous hydrolysis product, containing ammonia, which is added to the exhaust gas in a controlled manner to pass therewith through the SCR catalyst to reduce the NOx content of the exhaust gas. The device 1 has an inlet 2 and an outlet 3 for the exhaust gas flowing therethrough and comprises an outer body 4, which forms a pressure barrier, and passing through the outer body 4 is an inner body 5 which comprises a flowpath longitudinally therethrough from the inlet 2 to the outlet 3.