Abstract:
An air intake system having an air filter and a cyclonic pre-cleaner is described. The cyclonic pre-cleaner includes a plurality of fins that cause the air flowing through the pre-cleaner to go from a substantially axial flow to a substantially swirling flow. As the air flow through the pre-cleaner increases, the air is swirled at a faster rate, and some contaminant particles in the air will be forced out of the flow of air before reaching the air filter. The air intake system includes a blower unit having a motor, an impeller, and a controller. The blower unit structured to selectively draw more air through the air intake system to increase the flow of air through the pre-cleaner thereby increasing the efficiency of the pre-cleaner.
Abstract:
The air cleaner (32) comprises a base member (41) including a base wall (41A) extending substantially horizontally, and a cover member (42) attached to an upper side of the base wall to jointly define a filter chamber (70) for receiving a filter element (43) therein. The air cleaner further includes a passage member (44) communicating with the filter chamber and incorporated with a plurality of air ejection pipes (44C) each surrounded by an annular air inlet passage (44E) fitted with guide vanes (44D) for rotating the air flow, and a case member (45) defining separation chambers (45C) for separating dust from the rotating air flow. The passage member (44) is interposed between the cover member (42) and the case member (45).
Abstract:
A pre-cleaner tube assembly includes an inlet tube having an inlet tube wall surrounding an interior volume and first and second open, opposite ends. A vane arrangement is oriented within the inlet tube wall adjacent to the first open end. The inlet tube wall defines a slot adjacent to the second open end. An outlet tube has an outlet tube wall surrounding an interior volume, an open entrance end, and an opposite open exit end. The outlet tube wall has an exterior and an interior. The exterior of the outlet tube wall has a ramp extending upward as the ramp extends from a region adjacent to the entrance end toward a remaining portion of the outlet tube wall. The outlet tube is oriented in the inlet tube wall interior volume such that the entrance end and over 50% of a length of the outlet wall is within the inlet tube wall interior volume.
Abstract:
Filtration systems having a tangential air cleaner having a coiled media filter element and a cyclonic pre-cleaner are described. An outer wall of the filter element acts as a pre-cleaner sleeve of the housing to generate a cyclonic flow of the intake air prior to the intake air being filtered by the filter element. The housing cover includes geometry that redirects the cyclonic flow from a tangential path to an axial, straight-through flow directed through an inlet flow face of the filter element. Various embodiments of such filtration systems offer increased filter performance and capacity compared to similarly sized cylindrical pleated filter elements having a radial flow filtering path.
Abstract:
The present invention belongs to the technical sector of fluid filtration systems which can be used for air filtration in an internal combustion engine. The invention refers to a filtering device (1) including a filtering element (24) which presents an open axial end (26) and an axial end (27) closed by a cover (28); and an intake cover (7). The said cover (28) includes at least a first tubular boss (55) projecting towards the intake cover (7); and the intake cover (7) includes at least a second tubular boss (57) complementary to the first tubular boss (55) and projecting towards the cover (28); the first tubular boss (55) is slotted in the second tubular boss (57). The invention also refers to a tubular filtering element (24) and to a maintenance process of a filtering device.
Abstract:
The invention relates to a particle trap (100) for removing particles from a fluid (90), comprising a conduit (10), the conduit (10) comprising a wall (16); a bend (20) with an upstream side (20a) and a downstream side (20b) with respect to a flow direction (70) of the fluid (90); - an inlet (12) at the upstream side (20a) of the bend (20); at least one first outlet (40) at the downstream side (20b) of the bend (20); at least one second outlet (50) at the downstream side (20b) of the bend (20); - wherein the least one first outlet (40) is arranged in a first region (26), at a distance from the wall (16), where the concentration of particles in the fluid (90) is lower than in the vicinity of the wall (16) during operation; and wherein the least one second outlet (50) is arranged in the vicinity of the wall (16) where the concentration of particles is higher than where the first outlet (40) is arranged.
Abstract:
The present invention relates to a device, method and use for conditioning intake air for testing internal combustion engines. The device comprises a line for transporting intake air from an inlet point (a) to an outlet point (k), and the following components between said inlet point (a) and said outlet point (k): a mechanical compressor for compressing intake air to desired pressure and temperature values; a chiller for lowering the temperature and humidity of the intake air; a first cyclonic separator for removing condensed humidity from the intake air; a first bypass valve for bypassing both the chiller and the first cyclonic separator; a heater for increasing the temperature of the intake air; and a second bypass valve for bypassing the heater.The conditioned intake air is suitable for feeding directly to an internal combustion engine to be tested or to an additional device for further conditioning the pressure thereof.
Abstract:
A particle separator and air filter system are provided and may include a housing having an inlet and an outlet. The housing may remove debris from air entering the housing at the inlet prior to expelling cleansed air at the outlet. A baffle may be disposed within the housing and may define a first path for directing cleansed air to the outlet and may cooperate with an inner surface of the housing to define a second path that causes the air to circulate within the second housing. The baffle may include an opening permitting communication between the first path and the second path.
Abstract:
Ein Fliehkraftabscheider (1) zum Abscheiden von Partikeln (11) aus einem Fluid (9) umfasst ein Gehäuse (2), welches eine Einströmöffnung (13) und eine Ausströmöffnung (14) aufweist, und mehrere Leitschaufel (3-8) zum Erzeugen eines Wirbelstroms (12) von durch die Eintrittsöffnung (13) einströmendem Fluid (9). Beispielsweise haben die Anströmkanten (17, 18) von mindestens zwei Leitschaufeln (3, 4) in Bezug auf eine Querschnittsfläche (112) des Gehäuses (2), welche im Wesentlichen senkrecht zu einer Einströmrichtung (R) des Fluids (9) steht, einen unterschiedlichen Abstand (a1, a2) haben.
Abstract:
A separator for separating contaminants from a fluid stream has a first inlet arranged to receive the fluid stream, and first and second separation stages coupled together in series to receive the first fluid stream from the inlet. A pump is coupled to the second separation stage for generating an area of reduced pressure to draw the first fluid stream through the first and second separation stages. One of the separation stages includes a variable impactor separator which has comprising a first chamber arranged to receive the first fluid stream, and a second chamber coupled to the first chamber through at least one aperture arranged such that the first fluid stream is accelerated through the aperture and is incident upon an impaction surface such that contaminants are separated from the first fluid stream. An actuator is arranged to adjust the open area of the at least one aperture according to a pressure differential between fluid pressure in the first chamber and a reference fluid pressure in a third chamber. The other of the separation stages is a second variable impactor separator or a filter media.