Abstract:
A system for removing effluents from the exhaust gases of an engine includes an auxiliary occupational emissions device positioned downstream of a vehicle-regulated emission abatement system. One or more glow plugs is positioned between the vehicle-regulated emission abatement system and the auxiliary occupational emissions device. The glow plugs are operable to heat exhaust gases exiting the vehicle-regulated emission abatement system prior to advancement into the auxiliary occupational emissions device. A method of lighting off an auxiliary occupational emissions device is also disclosed.
Abstract:
An exhaust system includes an electrically conductive shell defining an exhaust pathway. The shell includes a tapered portion that tapers inward toward a longitudinal axis of the shell to define a narrowing region of the exhaust pathway. The exhaust system further includes an ionization assembly and an electrical subsystem that applies an electrical potential difference between the shell and at least a portion of the ionization assembly located within the exhaust pathway. The ionization assembly includes a support arm located within the exhaust pathway that extends into the narrowing region of the exhaust pathway. The ionization assembly further includes a plurality of electrically conductive discs mounted on and supported by the support arm. The ionization assembly is electrically insulated from the shell by an electrically insulating support structure.
Abstract:
A proportional heater controls a marine diesel powered generator with a diesel particulate filter (DPF). A proportional control is applied to the heater based upon exhaust temperature. The heater heats exhaust gas to a regeneration temperature to remove soot and sulphur from the processed gas when the diesel fuel has a sulphur content exceeding 1,000 ppm. The heater is supplied power via SCRs to reduce electromagnetic and radio frequency interference. A manual override permits the operator to set a temperature setpoint, force the heater to meet a certain temperature and establish a load bank for diesel engine electrical generator set.
Abstract:
An air cleaner device for filtering intake air including a housing defining a chamber, a filter element disposed within the chamber, and a duct element having a passageway in fluid communication with the chamber. Further, the duct element extends along and downwardly from about a portion of the housing and further includes an inlet for drawing intake air into the chamber. The air cleaner having a base member in fluid communication with the chamber and an outlet, where the air drawn into the chamber is filtered by first and second filtering operations to obtain filtered air, with the first and the second filtering operations accomplished at least in part due to a cyclonic motion of the air and passage of the air through the filter element, respectively; and where the filtered air from the chamber of the housing is released through the outlet in the base member.
Abstract:
A particle matter agglomeration system (100) enables cost effective and efficient filtration of aerosols. The system (100) includes an acoustic chamber (110) for receiving an aerosol, and an ultrasonic transducer head assembly (300) for supporting an ultrasonic transducer (400). A transducer plate (410) faces into the acoustic chamber (110) for applying ultrasonic energy to the aerosol inside the acoustic chamber (110). A shaft (405) extends through the head assembly (300) and connects the transducer plate (410) to the ultrasonic transducer (400). A cooling jacket (315) is positioned around the shaft (405) and between the transducer plate (410) and the ultrasonic transducer (400), wherein the cooling jacket (315) receives cooling fluid for cooling the ultrasonic transducer (400).
Abstract:
An exhaust pipe (100) for a fuel burning engine including a hollow body, the body having an internal surface (120), an external surface (110), a first open end (130), a second open end (140) and a longitudinal axis, wherein the internal surface (120) is shaped to form standing cyclic wave geometry having at least 2 cycles (c). When gas containing inhalable particles (22) enters the exhaust pipe (100) through the first open end (130) and flows out of the exhaust pipe (100) through the second open end (140), a substantial amount of inhalable particles (22) are grouped to form filterable particles (182).
Abstract:
An exhaust gas cleaning device for a watercraft includes at least a particle filter and/or an SCR catalytic converter and a heat exchanger disposed upstream thereof. The heat exchanger is operated with seawater as a cooling medium. The heat exchanger has an exhaust gas inlet side and an exhaust gas outlet side and is suitable for reducing a volumetric flow rate of an exhaust gas between the exhaust gas inlet side and the exhaust gas outlet side by a certain value in a certain temperature range of the exhaust gas at the exhaust gas inlet side. A watercraft and a method for operating an exhaust gas cleaning device for a watercraft are also provided.
Abstract:
A purification system for variable post injection in LP EGR, the system includes a turbo charger disposed downstream of a diesel engine, a DPF (catalyzed particulate filter) disposed downstream of the turbo charger, a NOx reduction apparatus disposed upstream or downstream of the DPF, a bypass line diverged from the DPF for mixing exhaust gas and air inflowing the turbo charger, a exhaust gas control portion disposed downstream of the DPF for controlling flowing of the exhaust gas and a lean/rich controlling portion for controlling lean/rich of the exhaust gas.
Abstract:
A hydraulic excavator includes an engine, a rotating frame, a vehicle body frame, a diesel particulate filtering device, a selective catalytic reduction device, and a connecting pipe. The diesel particulate filtering device and the selective catalytic reduction device are supported by a vehicle body frame. At least a portion of the connecting pipe includes an extendable bellows part. The connecting pipe connects the engine and the diesel particulate filtering device. The diesel particulate filtering device is located further away from the engine than the selective catalytic reduction device along a first direction on a horizontal plane. The first tubular body portion of the diesel particulate filtering device and the second tubular body portion of the selective catalytic reduction device are disposed apart from each other with a space therebetween in a plan view.
Abstract:
An exhaust gas purifier including an NOx catalyst of the selective reduction type and a diesel particulate filter arranged in series, and being disposed in an exhaust passage of an internal combustion engine. The purifier includes a passage for urea supply having a hydrolysis catalyst therein and a passage for hydrocarbon supply having an oxidation catalyst therein. The passages are parallel to each other and separate on an upstream side of both the NOx catalyst and the diesel particulate filter. A urea feeder which supplies urea to the passage for urea supply and a hydrocarbon feeder supplies hydrocarbon to the passage for hydrocarbon supply. The injection of an urea is thereby reconciled with the direction injection of hydrocarbon into the exhaust pipe in a compact space.