Abstract: A vacuum cleaner that includes a first dirt-separation stage, a second dirt-separation stage, and a vacuum motor for moving air through the first dirt-separation stage and the second dirt-separation stage. The vacuum motor has a centrifugal impeller driven by an electric motor. The first dirt-separation stage is then located upstream of the impeller, the second dirt-separation stage is located downstream of the impeller, and the second dirt-separation stage has a plurality of cyclonic separators that are arranged around the vacuum motor.

Abstract: A gas purifier assembly for providing first (50) and second (38) purified gas streams having an integral heater (54). The assembly can have two separate chambers for gaseous fluid flow for the purpose of purifying a gas stream of hydrogen (34), for example, and a separate distinct stream of gas such as compressed air (46). A centrally located heater heats the first chamber to effect purification of the first gas. Waste heat from the first chamber is transferred to the second chamber via conduction to effect purification of the second gas stream.

Abstract: A particle separating structure for use with a turbine engine. The particle separating structure includes a main housing, first swirling structure, and second swirling structure. The first swirling structure is provided for swirling cooling fluid passing through a first cooling fluid flowpath defined in the main housing. The second swirling structure is provided for swirling cooling fluid passing through a second cooling fluid flowpath defined in the main housing. The first swirling structure is positionable in at least two positions, a first position allowing cooling fluid to pass through the first cooling fluid flowpath and a second position allowing cooling fluid to pass through the first and second cooling fluid flowpaths. The swirling of the cooling fluid causes particles in the cooling fluid to pass to a particle discharge zone while the cooling fluid passes out of the main housing through a cooling fluid outlet.

Abstract: A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner, the arrangement comprising: a motor coupled to a fan for generating air flow; and a cyclonic separation apparatus located in a path of the air flow generated by the fan, wherein the cyclonic separation apparatus comprises: a plurality of cyclones each with an air inlet port and an air outlet port wherein the cyclones are arranged in a generally circular array about a central axis of the cyclonic separation apparatus; and a cooling air flow path, wherein the motor is nested within the generally circular array of cyclones and wherein the motor is located in the cooling air flow path. A vacuum cleaner comprising the motor, fan and cyclonic separation apparatus arrangement.

Abstract: A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner comprising: a motor coupled to a fan for generating air flow; and a cyclonic separation apparatus located in a path of the air flow generated by the fan. The cyclonic separation apparatus comprises: a plurality of cyclones each with an air inlet port and an air outlet port; and a cooling air flow path. The motor comprises a permanent magnet brushless motor, a switched reluctance motor or a flux switching motor. The fan has an outer diameter the same or less than the diameter of the motor. The plurality of cyclones, the motor and the fan are arranged in a circular array about a central axis of the cyclonic separation apparatus. The arrangement comprises a baffle for directing air flow from the fan out of the circular array. The motor is located in the cooling air flow path.

Abstract: The present invention relates to a spray drying system provided with a gas filtering system, which system is intended for use in the pharmaceutical industry for aseptic production of sterile pharmaceutical products or in other industries e.g. production of food, where an intake of sterile air for the drying process is necessary. The spray drying system for providing a particulate material comprises a spray drying chamber (3), after treatment equipment (4, 5) placed downstream of the spray drying chamber and a process gas heater (2) placed upstream in relation to the spray drying chamber (3), wherein an inlet filter (1) capable of removing microorganisms at a temperature below 140° C., is placed upstream of the process gas heater (2) and that the process gas heater (2) is a non-flaking heater.

Abstract: A particle separating structure for use with a turbine engine. The particle separating structure includes a main housing, first swirling structure, and second swirling structure. The first swirling structure is provided for swirling cooling fluid passing through a first cooling fluid flowpath defined in the main housing. The second swirling structure is provided for swirling cooling fluid passing through a second cooling fluid flowpath defined in the main housing. The first swirling structure is positionable in at least two positions, a first position allowing cooling fluid to pass through the first cooling fluid flowpath and a second position allowing cooling fluid to pass through the first and second cooling fluid flowpaths. The swirling of the cooling fluid causes particles in the cooling fluid to pass to a particle discharge zone while the cooling fluid passes out of the main housing through a cooling fluid outlet.

Abstract: A system for removing acid gases from a sour gas stream is provided. The system includes an acid gas removal system and a heavy hydrocarbon removal system. The acid gas removal system receives the sour gas stream and separates the sour gas stream into an overhead gas stream comprised primarily of methane, and a bottom acid gas stream comprised primarily of acid gases such as carbon dioxide. The heavy hydrocarbon removal system may be placed upstream or downstream of the acid gas removal system or both. The heavy hydrocarbon removal system receives a gas stream and separates the gas stream into a first fluid stream comprising heavy hydrocarbons and a second fluid stream comprising other components. The components of the second fluid stream will depend on the composition of the gas stream. Various types of heavy hydrocarbon removal systems may be utilized.

Abstract: Process to separate particles from a particles-containing gas stream, by subjecting the particles-containing gas stream to a centrifugal separation step, wherein the particles-containing gas stream is separated in a gas rich flow and a particles-rich flow and wherein the particles-rich flow is cooled from a temperature in the range from 600 to 800° C. to a temperature in the range from 200 to 450° C. before it is subjected to a second separation step, wherein particles are separated from the particles-rich flow.

Abstract: A gas purifier assembly for providing first (50) and second (38) purified gas streams having an integral heater (54). The assembly can have two separate chambers for gaseous fluid flow for the purpose of purifying a gas stream of hydrogen (34), for example, and a separate distinct stream of gas such as compressed air (46). A centrally located heater heats the first chamber to effect purification of the first gas. Waste heat from the first chamber is transferred to the second chamber via conduction to effect purification of the second gas stream.

Abstract: A trap device (18) for removing species from a gas stream drawn from an enclosure by a vacuum pump is described, the device (18) comprising a casing having an inlet (16) for receiving the gas stream, an outlet (20) for exhausting the gas stream from the casing, and first and second chambers (136, 138) each for receiving the gas stream from the inlet and conveying the gas stream to the outlet; means (170, 174) for selectively diverting the gas stream from the inlet to a selected one of the chambers; a first plurality of cartridges (32) each being removably insertable into the casing to provide a plurality of flow passages for gas passing through the first chamber; and a second plurality of cartridges (132) each being removably insertable into the casing to provide a plurality of flow passages for gas passing through the second chamber, each flow passage extending between an inlet and an outlet of a respective cartridge, each cartridge housing means for removing species from the gas passing therethrough as soli

Abstract: Process to separate particles from a particles-containing gas stream, by subjecting the particles-containing gas stream to a centrifugal separation step, wherein the particles-containing gas stream is separated in a gas rich flow and a particles-rich flow and wherein the particles-rich flow is cooled from a temperature in the range from 600 to 800° C. to a temperature in the range from 200 to 450° C. before it is subjected to a second separation step, wherein particles are separated from the particles-rich flow.

Abstract: An apparatus, system, and method are disclosed for dispersing heat within a particulate filter. The apparatus may include various devices for dispersing heat from a high risk portion of the particulate filter by delaying heat generation, by conducting generated heat out of the high risk portion, by absorbing the heat generated into molecular energy rather than temperature, by shifting some of the heat burden away from the particulate filter to other devices in an aftertreatment system, or out of the aftertreatment system. The delaying device may be a reduction of catalyst loading within portions of the particulate filter. The conducting device may be a plurality of thermal conduits within portions of the particulate filter. The absorption device may be a high heat capacity washcoat in portions of the particulate filter.

Abstract: A method and device for producing a carbon dioxide product from a feed gas comprised predominantly of carbon dioxide and nitrogen in a cryogenic gas separation process is disclosed. The nitrogen is separated from carbon dioxide in a one-stage condensation process in two separators that are connected in series.

Abstract: An air-liquid separating apparatus for compressed air includes a cooling device adapted to be connected to an air source via a first transfer tube. The cooling device includes a liquid cooling tank filled with cooling agent and a cooling tube spiraled in the liquid cooling tank for condensing and separating the mist in the compressed air. An air-liquid separating tank is connected to the liquid cooling tank, wherein the compressed air is cooled and released again in the air-liquid separating tank. The air-liquid separating tank includes a backflow tube connected to the air-liquid separating tank for outputting the compressed air. The backflow tube is provided to carry the heat from the cooling device.

Abstract: A reversely subliming substance is efficiently collected on a commercial scale from a gas containing the substance. This is achieved by introducing the gas containing the substance into a shell-and-tube collecting apparatus by controlling the resistance offered to the gas during the passage thereof through the cooled tubes retained inside the collecting apparatus or by utilizing gas-introducing tubes excelling in dispersibility.

Abstract: An evacuation system having a long service life, a compact configuration and high reliability is disclosed. The system enables the process gases to be reused, so that the overall costs of capital investment and operation are reduced. The system comprises a processing chamber, and a vacuum pump communicating with the processing chamber by way of an evacuation conduit for evacuating the processing chamber. The evacuation conduit are provided with not less than two trapping devices arranged in series and operating at different temperatures for capturing different components contained in an exhaust gas discharged from the processing chamber.