Abstract:
One exemplary embodiment may include an internal combustion engine breathing system (10). The internal combustion engine breathing system (10) may include an exhaust passage (24), an intake passage (26), a turbocharger (28), an aftertreatment device (16), and an exhaust gas recirculation (EGR) assembly (14). The EGR assembly (14) may include a first EGR passage (46) communicating with the exhaust passage (24) at a first location (58) upstream of the aftertreatment device (16), and may include a second EGR passage (48) communicating with the exhaust passage (24) at a second location (60) downstream of the aftertreatment device (16). The EGR assembly (14) may also include one or more valve(s) (52, 68, 70) that may regulate fluid-flow in the first and/or second EGR passage (46, 48).
Abstract:
The present invention is a hydraulically-assisted turbocharger system (10) having a selectively engagable pump (20), a camshaft (54) having at least one cam (56), with the cam (56) operably associated with the pump (20), a turbocharger unit (12) having a compressor (18) and a turbine (14), and a hydraulically actuated driver (16) for driving the turbocharger (12), the driver being in fluid communication with the pump (20), connected to the turbocharger and the pump (20). When the cam (56) rotates, and the pump (20) is activated, the cam (56) will cause the pump (20) to deliver pressurized fluid through the hydraulically actuated driver (16) for driving the turbocharger (12), thereby causing the compressor (18) to compress air, and when the pump (20) is deactivated, no fluid is pumped for driving the turbocharger (12).
Abstract:
The present invention is a hydraulic pump having a body having one or more cylinders, and at least one collapsible link, selectively actuatable into a first position and a second position. The at least one collapsible iink is located in the one or more cylinders. The pump also has at least one cam operably associated with the body,. and with the collapsible link. As the cam rotates, the cam will cause the collapsible link to slidably move within the cylinders when the collapsible link is in the first position, and when the collapsible link is in the second position,; a portion of the collapsible link is collapsed by engagement with the cam.
Abstract:
According to one implementation of an engine system, a power device is selectively actuated to provide energy to a storage device. Energy from the storage device is selectively provided to a boost assist device to supplement the normal energy supply to a boost device and enable an increased power output of the engine in at least certain engine or vehicle operating conditions. In one form, the power device may be a source of electrical energy and the storage device is capable of storing an electrical charge. In another form, the power device is a fluid pump and the storage device is capable of storing pressurized fluid. Various methods may be employed to control operation of the power device and energy storage in the storage device.
Abstract:
An internal combustion engine valvetrain for an internal combustion engine. The internal combustion engine Includes one or more cylinders with one or more intake valves, one or more blowdown exhaust valves, and one or more scavenge exhaust valves. In one example, the internal combustion engine valvetrain includes a first valve actuation mechanism to open and close the blowdown exhaust valves, and Includes a second valve actuation mechanism to open and close the scavenge exhaust valves.
Abstract:
One illustrative embodiment includes a turbocharger (16, 18) with a turbine (94) and a compressor (96). The turbine (94) has an inlet passage (114) which may directly communicate with a blowdown exhaust port (34, 36, 38) of a cylinder head (12) of an internal combustion engine (14). The inlet passage (114) may directly receive exhaust gas from the blowdown exhaust port (34, 36, 38).
Abstract:
One illustrative embodiment includes a turbocharger (16, 18) with a turbine (94) and a compressor (96). The turbine (94) has an inlet passage (114) which may directly communicate with a blowdown exhaust port (34, 36, 38) of a cylinder head (12) of an internal combustion engine (14). The inlet passage (114) may directly receive exhaust gas from the blowdown exhaust port (34, 36, 38).