Patents by Inventor Uwe Blass
Uwe Blass has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10508652Abstract: An axial fan for conveying cooling air, in particular for an internal combustion engine of a motor vehicle. The axial fan includes a hub, on which a plurality of fan blades extending radially outward is arranged, which each have a rear blade edge. In the case of an axial fan having an optimal relationship between efficiency and flow output, a contour of the rear blade edge of the fan blades extends curved in a circumferential direction with respect to a plane spanned by an axis of rotation of the axial fan and a longitudinal extent of the fan blade.Type: GrantFiled: March 16, 2017Date of Patent: December 17, 2019Assignee: MAHLE International GmbHInventor: Uwe Blass
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Publication number: 20170184112Abstract: An axial fan for conveying cooling air, in particular for an internal combustion engine of a motor vehicle. The axial fan includes a hub, on which a plurality of fan blades extending radially outward is arranged, which each have a rear blade edge. In the case of an axial fan having an optimal relationship between efficiency and flow output, a contour of the rear blade edge of the fan blades extends curved in a circumferential direction with respect to a plane spanned by an axis of rotation of the axial fan and a longitudinal extent of the fan blade.Type: ApplicationFiled: March 16, 2017Publication date: June 29, 2017Applicant: MAHLE International GmbHInventor: Uwe BLASS
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Publication number: 20130323072Abstract: The invention relates to an axial fan for delivering cooling air, in particular for an internal combustion engine of a motor vehicle, comprising fan blades which are fastened to a hub and which have a pressure side and a suction side and a trailing edge and a blade depth, on the pressure side of which fan blades is arranged a hub ramp which rises counter to the direction of rotation of the axial fan, wherein the trailing edge has an outer region situated radially outside the hub ramp and has an inner region situated radially within the hub ramp.Type: ApplicationFiled: December 1, 2011Publication date: December 5, 2013Applicant: BEHR GMBH & CO. KGInventors: Uwe Aschermann, Uwe Blass, Frederic Guilbaud
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Patent number: 8573931Abstract: A cooling apparatus for a motor vehicle with an internal combustion engine is provided that includes at least one heat exchanger through which air can pass, at least one axial fan that is located behind the at least one heat exchanger in a direction of air flow and has a circumferential ring with which ring is associated a stationary baffle ring, and a fan shroud adjoining the at least one heat exchanger. At least one motion compensating element with a sealing function is provided between the baffle ring and the at least one fan shroud.Type: GrantFiled: March 10, 2010Date of Patent: November 5, 2013Assignee: Behr GmbH & Co. KGInventors: Uwe Blass, David Haar, Ulrich Vollert
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Patent number: 8277180Abstract: The invention relates to an axial fan (1) for conveying cooling air for a cooling device of a motor vehicle, wherein the axial fan (1) has axial vanes (4) each having a front edge (4a) and a rear edge (4b), a van tip (4c) and a circumferential ring (5) which is connected to the vane tips (4c) and has an approach edge (5a) and a dispersing edge (5b). It is proposed that the approach edge (5a) of the circumferential rind (5) is set back in the flow direction (L) in relation to the front edges (4a) of the axial vanes (4).Type: GrantFiled: September 17, 2007Date of Patent: October 2, 2012Assignee: Behr GmbH & Co. KGInventors: Uwe Blass, Ulrich Vollert
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Publication number: 20100229810Abstract: A cooling apparatus for a motor vehicle with an internal combustion engine is provided that includes at least one heat exchanger through which air can pass, at least one axial fan that is located behind the at least one heat exchanger in a direction of air flow and has a circumferential ring with which ring is associated a stationary baffle ring, and a fan shroud adjoining the at least one heat exchanger. At least one motion compensating element with a sealing function is provided between the baffle ring and the at least one fan shroud.Type: ApplicationFiled: March 10, 2010Publication date: September 16, 2010Inventors: Uwe BLASS, David Haar, Ulrich Vollert
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Publication number: 20100014967Abstract: The invention relates to an axial fan (1) for conveying cooling air for a cooling device of a motor vehicle, wherein the axial fan (1) has axial vanes (4) each having a front edge (4a) and a rear edge (4b), a van tip (4c) and a circumferential ring (5) which is connected to the vane tips (4c) and has an approach edge (5a) and a dispersing edge (5b). It is proposed that the approach edge (5a) of the circumferential rind (5) is set back in the flow direction (L) in relation to the front edges (4a) of the axial vanes (4).Type: ApplicationFiled: September 17, 2007Publication date: January 21, 2010Applicant: BEHR GMBH & CO. KGInventors: Uwe Blass, Ulrich Vollert
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Publication number: 20080035316Abstract: The invention relates to a cooling device (1) for a motor vehicle with a combustion engine (2) comprising a coolant radiator (5) through which air can flow, an axial blower (3) which is arranged behind the coolant radiator (5) in the airflow direction (L), [and] a shroud (6), arranged between the coolant radiator (5) and the axial blower (3), with a shroud ring (7) in which the axial blower (3, 3b) is arranged so it can turn. It is proposed to widen the shroud ring (7) on the air outflow side radially into a flow guidance device (8).Type: ApplicationFiled: August 6, 2007Publication date: February 14, 2008Applicant: BEHR GMBH & CO. KGInventors: Uwe Blass, Ulrich Vollert
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Patent number: 6726454Abstract: An axial-flow fan (1) is arranged on a viscous coupling (4). Fin-like stabilizers (5) are provided in the region of the blade roots, that is to say in the hub region, and these fin-like stabilizers (5) segregate the hub flow and the blade flow. In addition, a radial blade element (6) can be provided and are assigned in each case to these stabilizers and can be integrated with the surface of the stabilizer (5) to form a common surface. These special flow-conducting elements can favorably influence the fan flow in its hub region in such a way as to improve the fan output.Type: GrantFiled: December 21, 2001Date of Patent: April 27, 2004Assignee: Behr GmbH & Co.Inventors: Uwe Blass, Christoph Kurdzel
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Publication number: 20020085912Abstract: An axial-flow fan (1) is arranged on a viscous coupling (4). Fin-like stabilizers (5) are provided in the region of the blade roots, that is to say in the hub region, and these fin-like stabilizers (5) segregate the hub flow and the blade flow. In addition, a radial blade element (6) can be provided and are assigned in each case to these stabilizers and can be integrated with the surface of the stabilizer (5) to form a common surface. These special flow-conducting elements can favorably influence the fan flow in its hub region in such a way as to improve the fan output.Type: ApplicationFiled: December 21, 2001Publication date: July 4, 2002Inventors: Uwe Blass, Christoph Kurdzel
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Patent number: 6382915Abstract: The invention relates to an axial fan, in particular for radiators of motor vehicles, the axial blades being fastened to a fan hub, and the fan hub in turn being connected to a viscous fluid friction clutch. According to the invention, air-guide elements or guide blades are arranged in the hub region on the front side or suction side of the axial fan. These air-guide elements or guide blades deflect the flow from the front side to the rear side of the blades and thereby stabilize the flow. To further improve the flow conditions, the hub region is covered by a cap on its front side.Type: GrantFiled: May 19, 2000Date of Patent: May 7, 2002Assignee: Behr GmbH & Co.Inventors: Uwe Aschermann, Uwe Blass
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Patent number: 5645401Abstract: An axial fan is known whose fan hub is fastened by means of a fan flange on a clutch housing of a fluid friction clutch while leaving an annular gap for a partial flow assigned to the cooling fins of the clutch housing. In the case of such axial fans, swirls occur in the hub area which reduce the efficiency of the fan. According to the invention, for achieving an improved efficiency, an air guiding ring is provided on the fan hub on an inlet side relating to a flow direction of the venting flow, which air guiding ring has a curved profile which is directed axially opposite to the flow direction and is curved radially to the inside.Type: GrantFiled: December 14, 1995Date of Patent: July 8, 1997Assignee: Behr GmbH & Co.Inventors: Hans Martin, Uwe Blass