# US 2014/0190140 A1 · Air intake system for cooling air > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190140 A1 - Document ID: US20140190140A1 - Status: Published application - Kind: A1 - Application number: 14/148,126 - Filed: 2014-01-06 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: CLAAS Selbstfahrende Erntemaschinen GmbH - Applicants: Claas Selbstfahrende Erntemaschinen GmbH - Inventors: Frank Hovenga; Andreas Alterbaum; Bjoern Waten; Maik Prangemeier - Web page: https://patentgrep.com/patent/US20140190140A1 ## CPC - A01D 75/00: Accessories for harvesters or mowers - A01D 41/1252: {Anti-dust devices} - F01P 11/10: Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers - F01P 11/12: Filtering, cooling, or silencing cooling-air - A01B 71/08: Means for protecting against dust or the like, or for cleaning agricultural implements (discs for ploughs A01B15/16; lifting or cleaning apparatus for harrows A01B19/10; discs for harrows A01B23/06; screening of rotary driven tilling tools A01B33/12) - A01D: HARVESTING; MOWING - F01P: COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K11/00; heat-transfer, heat-exchange or heat-storage materials C09K5/00; {cooling of gas-turbine engines F02C7/12}; heat exchange in general, radiators F28) - A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21) ## Abstract An air intake system supplies cooling air to at least one heat exchanger and through which the cooling air flows. The air intake system is equipped on the inlet side with a device for removing and shredding components of the cooling air adhering on the inlet-side surface of the sieve. The device is formed with a suction device and a cutting device. The cutting device is formed of comb-like elements on a surface of the sieve and on a surface section of the suction device facing the surface of the sieve. The comb-like elements disposed on the surface of the sieve are designed as knives disposed on support or knife strips oriented transversely thereto. These support or knife strips extend with separations therebetween. At least one of the support strips is equipped with first knives, the knife-edges of which implement a pulling cut, while the comb-like elements on both end faces of the suction device or of the front element attached thereto are designed as second knives, knife-edges of which implement a pulling cut. ## Claims ### Claim 1 An air intake system for cooling air, which is fed to at least one heat exchanger, cooling surfaces of assemblies of a self-propelled harvesting machine or both, the air intake system comprising: a sieve through which the cooling air flows and which is equipped, on an inlet side, with a device for removing and shredding components of the cooling air adhering on the inlet-side surface of the sieve, wherein the device comprises a suction device and a cutting device; wherein the cutting device is formed of comb-like elements on the surface of the sieve and on a surface section of the suction device facing the inlet-side surface of the sieve or, the cutting device is formed of a front element connected to the surface section of the suction device; wherein the comb-like elements disposed on the surface of the sieve are designed as knives and disposed on support or knife strips oriented transversely thereto; wherein at least one of the support strips is equipped with first knives, the knife-edges of which implement a pulling cut; and wherein the comb-like elements on both end faces of the suction device or of the front element attached thereto are designed as second knives, the knife-edges of which implement a pulling cut. ### Claim 2 (depends on 1) The air intake system for cooling air according to claim 1, wherein the first knives provided on the sieve comprise first knife-edges, which rise relative to a plane of the surface of the sieve from a front end, as viewed in the direction of movement, diagonally in the direction of a back end, continuously. ### Claim 3 (depends on 1) The air intake system for cooling air according to claim 1, wherein the first knives provided on the sieve comprise first knife-edges, which rise relative to a plane of the surface of the sieve from a front end, as viewed in the direction of movement, in a curved manner. ### Claim 4 (depends on 2) The air intake system for cooling air according to claim 2, wherein the sieve and the suction device are moved in two directions of motion relative to one another arid wherein the first knife-edges in both directions of motion rise to a peak in a diagonal or hyperbolic manner. ### Claim 5 (depends on 1) The air intake system for cooling air according to claim 1, wherein the second knives, which are disposed at least indirectly at the suction device and extend in the direction of the surface of the sieve, comprise second knife-edges, and wherein the second knife edges extend from the receptacles thereof diagonally toward the rear in the direction of motion. ### Claim 6 (depends on 5) The air intake system for cooling air according to claim 5, wherein the second knives, which are disposed at least indirectly at the suction device and extend in the direction of the surface of the sieve, comprise second knife-edges and wherein the second knife edges extend from the receptacles thereof hyperbolically toward the rear in the direction of motion. ### Claim 7 (depends on 1) The air intake system for cooling air according to claim 1, wherein the sieve is rectangular and is accommodated by frame parts of the receiving housing or the heat exchanger and wherein the suction device is guided relative to the sieve via a housing designed as a carriage, by means of a linear guidance system. ### Claim 8 (depends on 7) The air intake system for cooling air according to claim 7, wherein only those outer support strips disposed close to the particular end regions of the surface of the sieve passed over by the suction device are equipped with first knives and wherein knife-edges of the first knives implement a pulling cut. ### Claim 9 (depends on 8) The air intake system for cooling air according to claim 8, wherein at least one knife strip having knives is provided in the region of a center of the surface of the sieve and wherein these knives have knife-edges on both end faces. ### Claim 10 (depends on 7) The air intake system for cooling air according to claim 7, wherein the suction device implements a horizontal motion relative to the sieve ### Claim 11 (depends on 1) The air intake system for cooling air according to claim 1, wherein the first knives are fixed on the sieve by a plurality of support strips and wherein the support strips extend parallel to one another and are separated from one another. ### Claim 12 (depends on 7) The air intake system for cooling air according to claim 7, wherein the linear guidance system is formed by a rail disposed between frame parts of the receiving housing, which extend parallel to one another, and by guide rollers, which are rotatably supported at least indirectly on a housing of the suction device. ### Claim 13 (depends on 12) The air intake system for cooling air according to claim 12, wherein the rail is designed as a tube and wherein the guide rollers have a jacket surface adapted to the radius of curvature of the tube. ### Claim 14 (depends on 1) The air intake system for cooling air according to claim 1, wherein a cover plate is connected to a housing of the suction device and covers the sieve on the outlet-side surface thereof, opposite the suction device. ### Claim 15 (depends on 1) The air intake system for cooling air according to claim 1, wherein the suction device is connected via a suction pipe to a suction blower and wherein a separating device is assigned to the suction blower. ### Claim 16 (depends on 3) The air intake system for cooling according to claim 3, wherein the curved manner in which the knife edges rise is hyperbolic.