Patents Assigned to GKN Sinter Metals Holding GmbH
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Patent number: 9915315Abstract: A valve component includes a first disk-shaped joining part and a second disk-shaped joining part. The first disk-shaped joining part has a first opening and has an elevation in a first region of the first disk-shaped joining part which runs at least partially peripherally around the first opening. The second disk-shaped joining part is joined to the first disk-shaped joining part and has a second opening which together with the first opening defines a channel for flow of a fluid medium therethrough. The second disk-shaped joining part further has a depression in a second region of the second disk-shaped joining part which runs at least partially peripherally around the second opening and which opposes the first region of the first disk-shaped joining part. The elevation interacts with the depression in sealing fashion.Type: GrantFiled: May 4, 2016Date of Patent: March 13, 2018Assignee: GKN Sinter Metals Holdings GmbHInventors: Sascha Frey, Rainer Gruber
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Patent number: 9841236Abstract: A sintering furnace with a first zone, in particular a burn-off zone, and a second zone, in particular a sintering zone, and also a transitional zone arranged between the first zone and the second zone. The sintering furnace has at least one transporting mechanism for transporting bodies to be sintered on a transporting area. With this transporting mechanism, the bodies to be sintered can be transported from the first zone and through the transitional zone to the second zone. The sintering furnace also has at least one gas removal device with at least one gas removal device opening. Here, the gas removal device opening is at least partially arranged in the region of the transitional zone. Furthermore, a method by means of which gases can be removed from a sintering furnace is claimed.Type: GrantFiled: March 13, 2013Date of Patent: December 12, 2017Assignee: GKN Sinter Metals Holding GmbHInventors: Eberhard Ernst, Rene Albert, Thomas Schupp
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Patent number: 9662708Abstract: The invention relates to a method for producing a green compact, said green compact comprising at least two partial green compacts, each partial green compact being compacted and joined from at least one powdery material in one working cycle. Particularly, two, three, four or more than four partial green compacts can be compacted and joined in one working cycle.Type: GrantFiled: March 22, 2012Date of Patent: May 30, 2017Assignee: GKN Sinter Metals Holding GmbHInventors: Rainer Schmitt, Antonio Casellas
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Publication number: 20160245360Abstract: A valve component includes a first disk-shaped joining part and a second disk-shaped joining part. The first disk-shaped joining part has a first opening and has an elevation in a first region of the first disk-shaped joining part which runs at least partially peripherially around the first opening. The second disk-shaped joining part is joined to the first disk-shaped joining part and has a second opening which together with the first opening defines a channel for flow of a fluid medium therethrough. The second disk-shaped joining part further has a depression in a second region of the second disk-shaped joining part which runs at least partially peripherially around the second opening and which opposes the first region of the first disk-shaped joining part. The elevation interacts with the depression in sealing fashion.Type: ApplicationFiled: May 4, 2016Publication date: August 25, 2016Applicant: GKN Sinter Metals Holding GmbHInventors: Sascha Frey, Rainer Gruber
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Patent number: 9353860Abstract: The invention relates to a valve component, in particular for a piston or a valve, comprising at least one first disk-shaped joining part and at least one second disk-shaped joining part, wherein the first and second joining part each have at least one opening, and wherein once the joining parts have been joined, the opening in the joining parts interacts in such a way that a channel is formed and a fluid medium can flow through the channel. In first and second regions at the joining parts, an at least partially peripheral elevation and/or depression interact with one another in sealing fashion once joined.Type: GrantFiled: May 6, 2013Date of Patent: May 31, 2016Assignee: GKN Sinter Metals Holding GmbHInventors: Sascha Frey, Rainer Gruber
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Patent number: 9284862Abstract: The invention relates to a camshaft adjusting device (1) for an internal combustion engine and to a method for producing a camshaft adjusting device having a stator wheel (10) and a rotor wheel (11), wherein the rotor wheel (11) has a first body part (19) and a second body part (20), wherein a joining surface (19a) of the first body part (19) and a joining surface (20a) of the second body part (20) are joined to one another, and wherein depressions (21, 22) are formed in at least one of the joining surfaces (19a, 20a) in order to form the fluid ducts (17, 18) at least in sections.Type: GrantFiled: May 1, 2014Date of Patent: March 15, 2016Assignee: GKN Sinter Metals Holding GmbHInventor: Sascha Frey
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Patent number: 9103383Abstract: A first clutch link for a driving clutch is capable of engaging another clutch link through interaction of a receptacle chamber and a projection. The first clutch link includes a contact surface and a counter surface, which are located on parallel planes. A hole is implemented behind the counter surface and is connected via a gap to the receptacle chamber. This hole extends parallel to the longitudinal axis of the driving clutch. A spring element is situated in the hole and has a contact area for contact on the other clutch link, which protrudes through the gap into the receptacle chamber. The hole has at least one opening, whose edge projects at least partially radially inward with respect to the hole in order to prevent the spring element from slipping through the opening of the hole.Type: GrantFiled: August 20, 2013Date of Patent: August 11, 2015Assignee: GKN Sinter Metals Holding GmbHInventor: Stefan Hundrieser
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Publication number: 20140238325Abstract: The invention relates to a camshaft adjusting device (1) for an internal combustion engine and to a method for producing a camshaft adjusting device having a stator wheel (10) and a rotor wheel (11), wherein the rotor wheel (11) has a first body part (19) and a second body part (20), wherein a joining surface (19a) of the first body part (19) and a joining surface (20a) of the second body part (20) are joined to one another, and wherein depressions (21, 22) are formed in at least one of the joining surfaces (19a, 20a) in order to form the fluid ducts (17, 18) at least in sections.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: GKN SINTER METALS HOLDING GMBHInventor: SASCHA FREY
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Patent number: 8658054Abstract: In order to achieve the object of providing a mixture by means of which, in particular, sintered moldings can be obtained that are virtually free of surface stains produced by soot particles, a mixture is proposed which comprises at least one pressing aid and at least one additive, wherein the additive is selected from a group of substances which have releasable carbon dioxide.Type: GrantFiled: July 12, 2011Date of Patent: February 25, 2014Assignee: GKN Sinter Metals Holding GmbHInventors: Rene Lindenau, Lars Wimbert
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Publication number: 20130334007Abstract: A first clutch link for a driving clutch is capable of engaging another clutch link through interaction of a receptacle chamber and a projection. The first clutch link includes a contact surface and a counter surface, which are located on parallel planes. A hole is implemented behind the counter surface and is connected via a gap to the receptacle chamber. This hole extends parallel to the longitudinal axis of the driving clutch. A spring element is situated in the hole and has a contact area for contact on the other clutch link, which protrudes through the gap into the receptacle chamber. The hole has at least one opening, whose edge projects at least partially radially inward with respect to the hole in order to prevent the spring element from slipping through the opening of the hole.Type: ApplicationFiled: August 20, 2013Publication date: December 19, 2013Applicant: GKN Sinter Metal Holdings GmbHInventor: Stefan Hundrieser
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Patent number: 8550046Abstract: A hydraulic cam shaft adjuster has a driven outer body comprising at least one hydraulic chamber, and an inner body disposed on the inside of the outer body (4), which can be firmly attached to the camshaft and has at least one pivoting wing extending into the hydraulic chamber in the radial direction, thus partitioning the hydraulic chamber into a first working chamber and a second working chamber. The inner body has at least one oil inlet and oil outlet conduit extending from a jacket interior to a jacket exterior of the inner body up to one of the two working chambers. The inner body is assembled using at least one first element and one second element, wherein the two elements each have at least one geometry at front sides facing each other, forming the oil inlet and oil outlet conduit of the inner part together with the other element.Type: GrantFiled: December 13, 2010Date of Patent: October 8, 2013Assignee: GKN Sinter Metals Holding GmbHInventors: Bernhard Terfloth, Antonio Casellas, Rainer Schmitt, Eberhard Ernst
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Patent number: 8485802Abstract: Disclosed is a pump for generating at least two volume flows having a different pressure. Said pump comprises a pump cover, a pump housing, and a wheel set that is eccentrically mounted therein. The pump housing is provided with a suction slot and a pressure slot which are separated from each other by means of a first sealing web and a second sealing sew that is located opposite therefrom. The pressure slot is subdivided into a high pressure chamber and a low pressure chamber with the air of at least one additional sealing web, each pressure chamber being provided with a delivery port.Type: GrantFiled: April 24, 2006Date of Patent: July 16, 2013Assignee: GKN Sinter Metals Holding GmbHInventors: Josef Bachmann, Rolf Schwarze
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Patent number: 8402659Abstract: A method for producing an at least partially surface-densified metallic toothed element comprising a densified sintering material, in order to improve a strength profile, a preform of the toothed element being produced with a locally selective oversize profile relative to a final size of the toothed element and being rolled to the final size by means of at least one rolling die, the toothed element being densified in locally varied manner at least in the region of at least one flank and/or one root of a tooth of the toothed element to produce a densified outer layer.Type: GrantFiled: December 10, 2007Date of Patent: March 26, 2013Assignee: GKN Sinter Metals Holding GmbHInventor: Gerhard Kotthoff
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Patent number: 8340806Abstract: The invention relates to a method for compressing the surface of a toothed section. The method is characterized by iteratively calculating the number of compression movements of a form tool to be repeated for compressing the surface of an area of a blank.Type: GrantFiled: December 10, 2007Date of Patent: December 25, 2012Assignee: GKN Sinter Metals Holding GmbHInventors: Gerhard Kotthoff, Björn Leupold
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Patent number: 8307551Abstract: A method for producing an at least partially surface-densified metallic toothed element comprising a densified sintering material, in order to improve a strength profile, a preform of the toothed element being produced with a locally selective oversize relative to a final size of the toothed element and being rolled to the final size by means of at least one rolling die, the toothed element being densified in locally varied manner at least in the region of at least one flank and/or one root of a tooth of the toothed element to produce a densified outer layer.Type: GrantFiled: December 10, 2007Date of Patent: November 13, 2012Assignee: GKN Sinter Metals Holding GmbHInventor: Gerhard Kotthoff
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Patent number: 8104174Abstract: The invention relates to a piston for a piston-cylinder arrangement, particularly a shock absorber piston, which includes a piston body, that has a circumferential surface. A sealing collar has an outer circumferential surface, an inner circumferential surface, a first peripheral surface, and a first sealing lip, and extends around the circumferential surface of the piston body and covers at least part of the circumferential surface in the axial direction. The first peripheral surface connects the two circumferential surfaces to each other at a first end of the sealing collar. The first sealing lip is delimited by the first peripheral surface and the outer circumferential surface, and the first sealing lip is configured evenly in the circumferential direction.Type: GrantFiled: January 28, 2010Date of Patent: January 31, 2012Assignee: GKN Sinter Metals Holding GmbHInventors: Rainer Gruber, Antonio Casellas, Stefan Schneid
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Publication number: 20120001129Abstract: In order to achieve the object of providing a mixture by means of which, in particular, sintered moldings can be obtained that are virtually free of surface stains produced by soot particles, a mixture is proposed which comprises at least one pressing aid and at least one additive, wherein the additive is selected from a group of substances which have releasable carbon dioxide.Type: ApplicationFiled: July 12, 2011Publication date: January 5, 2012Applicant: GKN SINTER METALS HOLDING GMBHInventors: Rene Lindenau, Lars Wimbert
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Publication number: 20110176952Abstract: The aim of the invention is to devise a binder that is an alternative to prior art binders for producing sintered molded articles. Said aim is achieved by a binder comprising a first substance that has a first melting point and a first vapor pressure at 80° C. and a second substance that has a second melting point and a second vapor pressure at 80° C., the maximum melting point of the first and second substance amounting to about 150° C., and the minimum vapor pressure of the first and second substance amounting to about 5 torr (667 Pa) at 80° C.Type: ApplicationFiled: February 14, 2011Publication date: July 21, 2011Applicant: GKN SINTER METALS HOLDING GMBHInventors: Vladislav Kruzhanov, Lars Wimbert, Nicola De Cristofaro
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Patent number: 7887309Abstract: The invention relates to a pump, in particular an oil pump, for internal combustion engines, comprising a pump case, with the pump case comprising a pump lid and a pump flange, with at least one toothed wheelset being arranged between the pump lid and the pump flange and the pump lid and the pump flange being connected via at least one distance element.Type: GrantFiled: April 5, 2010Date of Patent: February 15, 2011Assignee: GKN Sinter Metals Holding GmbHInventors: Josef Bachmann, Rolf Schwarze
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Patent number: 7857903Abstract: To achieve the object of providing a mixture for producing sinterable mouldings that allows high pressed densities to be obtained in a green compact, a mixture is proposed which comprises at least one metallic material and/or plastics material and at least one pressing aid, the pressing aid comprising about 0.5% to about 60% by weight, based on the total amount of the pressing aid, of at least one amide, and about 40% to about 99.5% by weight, based on the total amount of the pressing aid, of at least one carnauba wax.Type: GrantFiled: March 6, 2009Date of Patent: December 28, 2010Assignee: GKN Sinter Metals Holding GmbHInventors: Rene Lindenau, Diego Fax, Lars Wimbert