Patents by Inventor Alexander Dragojlov
Alexander Dragojlov 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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Publication number: 20250060042Abstract: A seal assembly which includes a combination of an outer sleeve and an inner sleeve, which has a low friction sliding interface, such that the seal assembly provides desired sealing force and frictional force characteristics. When assembled, the seal assembly surrounds a rotor, such that the seal assembly is disposed between the outer surface of the rotor and the inner surface of a housing. The inner sleeve includes one or more ribs which are in contact with the outer surface of the rotor, which concentrates the sealing in the area of the ribs. The concentration of the sealing reduces the total friction between the rotor and the inner sleeve, while maintaining proper sealing force. The ribs formed as part of the inner sleeve are spaced apart such that the openings of the rotor are positioned relative to the ribs in a desired manner, regardless of the orientation of the rotor.Type: ApplicationFiled: January 6, 2024Publication date: February 20, 2025Applicant: Vitesco Technologies USA, LLCInventors: Shrutika Sawardekar, Alexander Dragojlov, Ravinder Singh Gill, Benjamin Dominick Manton Williams, Jianlin Guo
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Publication number: 20240253129Abstract: A clamping mechanism used for connecting one or more conduits or hoses to a housing. The clamping mechanism uses bolt tension and a wedge interface, where the perpendicular movement of the wedge interface reduces the interface distance and creates compression in the desired direction. At least one clamping component is assembled from one axis perpendicular from the clamping to achieve desired sealing. The interface of the clamp, a tube flange, and a housing create a progressive clamping force based on several wedge-shaped features. A portion of the interface may be molded into a separate part such that there are multiple connections using a single clamping mechanism.Type: ApplicationFiled: October 23, 2023Publication date: August 1, 2024Applicant: Vitesco Technologies USA, LLCInventors: Mohammad Abujubbeh, Alexander Dragojlov
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Patent number: 11988290Abstract: A multi-level rotor for a coolant flow control valve assembly, which accommodates an increased number of inlet ports, outlet ports, and flow channels using a single rotor located in a housing, enabling a larger number of flow configurations. The housing includes nine ports which may function as an inlet or an outlet, which facilitates different flow configurations. For a thermal management system, reduced cost and less space utilization is achieved by a reduced number of valves, where the multi-level rotor is able to fluidically connect multiple inlets/outlets. This enables different flow configurations, depending on the degree of rotation. The channels at different levels are sealed from each other within the housing. The flow channels are manufactured into a single entity, therefore always having the same positional accuracy relative to each other when the rotor is repositioned.Type: GrantFiled: December 15, 2021Date of Patent: May 21, 2024Inventors: Ravinder Singh Gill, Alexander Dragojlov, Benjamin MacNally, Jeremy Daniel Schmidt
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Publication number: 20240068578Abstract: A multi-port valve assembly, including a housing, a plurality of ports formed as part of the housing, and a rotor disposed in the housing, the rotor selectively in fluid communication with the ports. A first channel is integrally formed as part of the rotor, and a circumferential wall is part of the first channel, the circumferential wall at least partially surrounding a circular aperture which is also part of the first channel. The multi-port valve assembly also includes a second channel integrally formed as part of the rotor, the second channel fluidically isolated from the first channel, and at least two flow paths formed by the orientation of the rotor relative to the housing and the ports. The rotor is placed in one of a plurality of configurations relative to the ports and the housing such that each of the plurality of configurations includes the flow paths.Type: ApplicationFiled: August 25, 2022Publication date: February 29, 2024Applicant: Vitesco Technologies USA, LLCInventors: Alexander Dragojlov, Ravinder Singh Gill, Bogdan-Daniel Rautu
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Publication number: 20230279954Abstract: A seal assembly for a multi-port valve assembly, the seal assembly including a plurality of beads integrally formed as part of a rotor, at least one seal element in sliding contact with one or more of the beads, and at least one lip seal integrally formed as part of the seal element. One or more of the beads applies force to the seal element, such that the force is transferred to the lip seal. The beads include at least one circumferential bead which circumscribes the rotor, and the circumferential bead continuously applies force to the seal element when the rotor is in each of a plurality of orientations. The beads also include at least one tangential bead extending along an outer surface of the rotor, and the tangential bead applies force to the seal element when the rotor is in one of a plurality of orientations.Type: ApplicationFiled: March 6, 2023Publication date: September 7, 2023Applicant: Vitesco Technologies USA, LLCInventors: Alexander Dragojlov, Jörg Eissler, Ravinder Singh Gill, Benjamin MacNally, Jeremy Daniel Schmidt
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Patent number: 11719350Abstract: A coolant flow control module, having a first outer housing, a first rotor located in the first outer housing, a second outer housing adjacent the first outer housing, and a second rotor disposed in the second outer housing. The second rotor is engaged with the first rotor such that the first rotor and second rotor rotate in unison. An actuator is connected to the first rotor, a first plurality of ports is integrally formed as part of the first outer housing, and a second plurality of ports is integrally formed as part of the second outer housing. The actuator rotates the first rotor and second rotor to at least one of a plurality of orientations such that fluid is able to flow through the first plurality of ports and the first rotor, and fluid is able to flow through the second plurality of ports and the second rotor.Type: GrantFiled: April 2, 2020Date of Patent: August 8, 2023Assignee: VITESCO TECHNOLOGIES USA, LLCInventors: Alexander Dragojlov, Benjamin MacNally, Russell M Modien, Jeremy Daniel Schmidt, Kris Leo Barboza, Qingqing Xie, David Rene Forgeron, Jürgen Luft
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Publication number: 20230235832Abstract: A multi-port thermal module which includes a central housing, a plurality of flow cavities integrally formed as part of the central housing, at least one inner housing connected to a first side of the central housing, a first plurality of inner flow channels integrally formed as part of the first inner housing, each of the first plurality of inner flow channels in fluid communication with at least one of the flow cavities, and a first outer housing connected to the first inner housing. A portion of each of a first plurality of flow channels is integrally formed as part of the first inner housing, and another portion of each of the first plurality of flow channels is integrally formed as part of the first outer housing. A rotor located in the central housing is rotated to various orientations to direct fluid between the plurality of flow cavities.Type: ApplicationFiled: January 18, 2023Publication date: July 27, 2023Applicant: Vitesco Technologies USA, LLCInventors: Ravinder Singh Gill, Mohammad Abu Jubbeh, Alexander Dragojlov, Jörg Eissler, Mitchell Koupal, Peter Welteroth, Armin Seeger
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Patent number: 11703135Abstract: A multi-port valve assembly, which includes a housing, a plurality of ports formed as part of the housing, a rotor disposed in the housing, and is selectively in fluid communication with the plurality of ports. Also included is a plurality of channels integrally formed as part of the rotor, a central plane extending through the rotor, a first level on one side of the central plane where a portion of the channels is located on the first level, and a second level on the opposite side of the central plane in relation to the first level, where a portion of the channels are located on the second level. At least two flow paths are formed by the orientation of the rotor relative to the housing and the ports, and the rotor is placed in one of a plurality of configurations to achieve the at least two flow paths.Type: GrantFiled: December 3, 2021Date of Patent: July 18, 2023Assignee: VITESCO TECHNOLOGIES USA, LLCInventors: Ravinder Singh Gill, Alexander Dragojlov, Jeremy Daniel Schmidt, Benjamin MacNally
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Publication number: 20230175599Abstract: A multi-port valve assembly, which includes a housing, a plurality of ports formed as part of the housing, a rotor disposed in the housing, and is selectively in fluid communication with the plurality of ports. Also included is a plurality of channels integrally formed as part of the rotor, a central plane extending through the rotor, a first level on one side of the central plane where a portion of the channels is located on the first level, and a second level on the opposite side of the central plane in relation to the first level, where a portion of the channels are located on the second level. At least two flow paths are formed by the orientation of the rotor relative to the housing and the ports, and the rotor is placed in one of a plurality of configurations to achieve the at least two flow paths.Type: ApplicationFiled: December 3, 2021Publication date: June 8, 2023Applicant: Vitesco Technologies USA, LLCInventors: Ravinder Singh Gill, Alexander Dragojlov, Jeremy Daniel Schmidt, Benjamin MacNally
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Publication number: 20230139552Abstract: A multi-level rotor for a coolant flow control valve assembly, which accommodates an increased number of inlet ports, outlet ports, and flow channels using a single rotor located in a housing, enabling a larger number of flow configurations. The housing includes nine ports which may function as an inlet or an outlet, which facilitates different flow configurations. For a thermal management system, reduced cost and less space utilization is achieved by a reduced number of valves, where the multi-level rotor is able to fluidically connect multiple inlets/outlets. This enables different flow configurations, depending on the degree of rotation. The channels at different levels are sealed from each other within the housing. The flow channels are manufactured into a single entity, therefore always having the same positional accuracy relative to each other when the rotor is repositioned.Type: ApplicationFiled: December 15, 2021Publication date: May 4, 2023Applicant: Vitesco Technologies USA, LLCInventors: Ravinder Singh Gill, Alexander Dragojlov, Benjamin MacNally, Jeremy Daniel Schmidt
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Patent number: 11629791Abstract: A multi-port valve assembly, which includes a housing, a rotor disposed in the housing such that the rotor is operable for being placed in a plurality of positions, and a first channel integrally formed as part of the rotor. The multi-port valve assembly includes various ports which are all integrally formed as part of the housing. The rotor is rotated such that the multi-port valve assembly is placed in one of a plurality of configurations having two or more flow paths, providing fluid communication between the various ports. The rotor may include a first side channel, a second side channel fluidically isolated from the first side channel, and where the first side channel and the second side channel are fluidically isolated from the first channel. The rotor may also a first channel and a second channel, and the second channel is fluidically isolated from the first channel.Type: GrantFiled: October 4, 2021Date of Patent: April 18, 2023Assignee: Vitesco Technologies USA, LLCInventors: Alexander Dragojlov, Mitchell Koupal
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Publication number: 20230078460Abstract: A coolant flow control valve (CFCV) which includes an actuator having a microcontroller which drives an electric motor, such as a brushless DC motor. The motor drives a gear train, and the gear train drives a valve. The motor and gear train are used to rotate the valve to one or more positions, and thus direct coolant (passing through the valve) between ports. The valve is rotated to different positions to create various flow paths, such that coolant is directed between the different flow paths. The valve is a rotor having three different channels. The CFCV may also include a compound valve, where two valves are connected to and driven by one actuator. The valves may be of different shapes to accommodate inlet and outlet ports of various configurations.Type: ApplicationFiled: December 3, 2021Publication date: March 16, 2023Applicant: Vitesco Technologies USA, LLCInventors: Benjamin MacNally, Alexander Dragojlov, Mitchell Koupal
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Publication number: 20220025978Abstract: A multi-port valve assembly, which includes a housing, a rotor disposed in the housing such that the rotor is operable for being placed in a plurality of positions, and a first channel integrally formed as part of the rotor. The multi-port valve assembly includes various ports which are all integrally formed as part of the housing. The rotor is rotated such that the multi-port valve assembly is placed in one of a plurality of configurations having two or more flow paths, providing fluid communication between the various ports. The rotor may include a first side channel, a second side channel fluidically isolated from the first side channel, and where the first side channel and the second side channel are fluidically isolated from the first channel. The rotor may also a first channel and a second channel, and the second channel is fluidically isolated from the first channel.Type: ApplicationFiled: October 4, 2021Publication date: January 27, 2022Applicant: Vitesco Technologies USA, LLCInventors: Alexander Dragojlov, Mitchell Koupal
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Patent number: 11168797Abstract: A multi-port valve assembly, which includes a housing, a rotor disposed in the housing such that the rotor is operable for being placed in a plurality of positions, and a first channel integrally formed as part of the rotor. The multi-port valve assembly includes various ports which are all integrally formed as part of the housing. The rotor is rotated such that the multi-port valve assembly is placed in one of a plurality of configurations having two or more flow paths, providing fluid communication between the various ports. The rotor may include a first side channel, a second side channel fluidically isolated from the first side channel, and where the first side channel and the second side channel are fluidically isolated from the first channel. The rotor may also a first channel and a second channel, and the second channel is fluidically isolated from the first channel.Type: GrantFiled: July 25, 2018Date of Patent: November 9, 2021Assignee: Vitesco Technologies USA, LLCInventors: Alexander Dragojlov, Mitchell Koupal
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Publication number: 20200393053Abstract: A coolant flow control module, having a first outer housing, a first rotor located in the first outer housing, a second outer housing adjacent the first outer housing, and a second rotor disposed in the second outer housing. The second rotor is engaged with the first rotor such that the first rotor and second rotor rotate in unison. An actuator is connected to the first rotor, a first plurality of ports is integrally formed as part of the first outer housing, and a second plurality of ports is integrally formed as part of the second outer housing. The actuator rotates the first rotor and second rotor to at least one of a plurality of configurations such that fluid is able to flow through the first plurality of ports and the first rotor, and fluid is able to flow through the second plurality of ports and the second rotor.Type: ApplicationFiled: April 2, 2020Publication date: December 17, 2020Applicant: Vitesco Technologies USA, LLCInventors: Alexander Dragojlov, Benjamin MacNally, Russell M Modien, Jeremy Daniel Schmidt, Kris Leo Barboza, Qingqing Xie, David Rene Forgeron, Jürgen Luft
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Publication number: 20190063623Abstract: A multi-port valve assembly, which includes a housing, a rotor disposed in the housing such that the rotor is operable for being placed in a plurality of positions, and a first channel integrally formed as part of the rotor. The multi-port valve assembly includes various ports which are all integrally formed as part of the housing. The rotor is rotated such that the multi-port valve assembly is placed in one of a plurality of configurations having two or more flow paths, providing fluid communication between the various ports. The rotor may include a first side channel, a second side channel fluidically isolated from the first side channel, and where the first side channel and the second side channel are fluidically isolated from the first channel. The rotor may also a first channel and a second channel, and the second channel is fluidically isolated from the first channel.Type: ApplicationFiled: July 25, 2018Publication date: February 28, 2019Applicant: Continental Automotive Systems, Inc.Inventors: Alexander Dragojlov, Mitchell Koupal