Patents Assigned to Burckhardt Compression AG
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Patent number: 11698062Abstract: An oil wiper packing for a piston rod of a crosshead piston compressor, and corresponding assembly method. The oil wiper packing has at least one chamber disc having a chamber disc cutout, wherein a wiper ring arranged in the chamber disc cutout. At least two chamber discs, each having a chamber disc cutout, are arranged in succession in a direction of extent (L), and a single wiper ring is in each chamber disc cutout. Each wiper ring has no play or only negligible play in the direction of extent (L) in the operating state but is movable in the radial direction. It is necessary to set the play in in the cold state during the assembly of the wiper rings. Such an arrangement allows advantageous wiping of oil, preventing oil from spreading in the direction of extent of the piston rod.Type: GrantFiled: August 28, 2017Date of Patent: July 11, 2023Assignee: BurckHardt CompRession AGInventor: Norbert Feistel
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Publication number: 20200386218Abstract: An oil wiper packing for a piston rod of a crosshead piston compressor, and corresponding assembly method. The oil wiper packing has at least one chamber disc having a chamber disc cutout, wherein a wiper ring arranged in the chamber disc cutout. At least two chamber discs, each having a chamber disc cutout, are arranged in succession in a direction of extent (L), and a single wiper ring is in each chamber disc cutout. Each wiper ring has no play or only negligible play in the direction of extent (L) in the operating state but is movable in the radial direction. It is necessary to set the play in in the cold state during the assembly of the wiper rings. Such an arrangement allows advantageous wiping of oil, preventing oil from spreading in the direction of extent of the piston rod.Type: ApplicationFiled: August 28, 2017Publication date: December 10, 2020Applicant: BurckHardt CompRession AGInventor: Norbert FEISTEL
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Patent number: 8985588Abstract: The seal arrangement (1) for piston compressors comprises a deformable ring support (2) and a first and a second endless sealing ring (3a, 3b), wherein the ring support (2) has a longitudinal axis (L) which extends perpendicularly with respect to its circumferential direction, and wherein the ring support (2) has a gap (2i) with play in its circumferential direction, and wherein each sealing ring (3a, 3b) has a longitudinal axis (3c, 3d) which extends perpendicularly with respect to its circumferential direction, and wherein the sealing rings (3a, 3b) are arranged in such a way that the ring support (2) encloses them from the outside, and wherein the two sealing rings (3a, 3b) are arranged next to one another in the direction of extent of the longitudinal axis (L), and wherein the ring support (2) and the sealing rings (3a, 3b) are designed to be adapted to one another in such a way that the first sealing ring (3a) bears on one side against a first side wall (2d) of the ring support (2) and forms a first gapType: GrantFiled: August 31, 2011Date of Patent: March 24, 2015Assignee: Burckhardt Compression AGInventor: Norbert Feistel
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Patent number: 8821132Abstract: Apparatus (1) for providing a supply of natural gas fuel comprising a compressor (2) having an inlet (3) for a stream of natural gas (4), wherein the inlet (3) may be placed in fluid communication with an LNG storage tank (5) in order to provide a supply of boil-off gas (6) from out of the LNG storage tank (5), and an outlet (7) which may be placed in fluid communication with a natural gas supply pipe (8), characterised in that the compressor (2) comprises a first and subsequently a second compression stage (9, 10), wherein the first and the second compression stage (9, 10) take the form of labyrinth-sealed piston-compressors (11, 12) or piston-ring-sealed piston-compressors (15), and wherein the first compression stage (9) features a larger piston diameter than the second compression stage (10), and that the compressor (2) comprises at least a third subsequent compression stage (13, 14), which takes the form of a piston-ring-sealed piston-compressor (11, 12) or a labyrinth-sealed piston-compressor (15).Type: GrantFiled: March 10, 2009Date of Patent: September 2, 2014Assignee: Burckhardt Compression AGInventor: Besim Fejzuli
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Patent number: 8740183Abstract: The invention relates to an actively controlled valve (1) having a housing (6) and comprising a displaceably supported valve plate (4) having aperture openings (4a) and a counter plate (2) disposed in a fixed manner relative to the housing (6) and having aperture openings (2a), wherein the valve plate (4) is slidably supported relative to the counter plate (2), such that the penetration openings (2a, 4a) form an open or closed aperture (24), and comprising a drive device (8) driving the valve plate (4), wherein the valve plate (4) is connected to the drive device (8) by means of a drive spring (7), and an actuatable clamping device (10) is provided for fixing the location of the valve plate (4).Type: GrantFiled: October 15, 2008Date of Patent: June 3, 2014Assignee: Burckhardt Compression AGInventors: Philipp Hauri, Markus Friedl, Andreas Schlegel, Alexandre Voser, Markus Lehmann
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Patent number: 7815193Abstract: The invention relates to a dry-running piston rod sealing arrangement (1) for sealing a piston rod (2) mounted in a longitudinally displaceable manner. The sealing arrangement comprises at least one sealing ring (5) having a sealing surface (5a), an actuator (7), a sensor (8), and a chamber ring (3) containing the sealing ring (5). The actuator (7) comprises an active connection in relation to the sealing ring (5), such that the sealing surface (5a) can be radially displaced in relation to the piston rod (2). The actuator (7) can be controlled according to a measuring value detected by the sensor (8).Type: GrantFiled: October 24, 2005Date of Patent: October 19, 2010Assignee: Burckhardt Compression AGInventors: Norbert Feistel, Georg Samland
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Publication number: 20090121440Abstract: The invention relates to a dry-running piston rod sealing arrangement (1) for sealing a piston rod (2) mounted in a longitudinally displaceable manner. Said sealing arrangement comprises at least one sealing ring (5) having a sealing surface (5a), an actuator (7), a sensor (8), and a chamber ring (3) containing the sealing ring (5). The actuator (7) comprises an active connection in relation to the sealing ring (5), such that the sealing surface (5a) can be radially displaced in relation to the piston rod (2). The actuator (7) can be controlled according to a measuring value detected by the sensor (8).Type: ApplicationFiled: October 24, 2005Publication date: May 14, 2009Applicant: Burckhardt Compression AGInventors: Norbert Feistel, Georg Samland
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Publication number: 20030006562Abstract: The piston ring (10) for a dry-running piston compressor consists of a first and a second ring part (10a, 10b) having gaps or butt joints (10e, 10f). These two ring parts (10a, 10b) are arranged to lie mutually concentric with respect to an axis (C). The first ring part (10a) has an essentially L-shaped cross-section, having a first arm (10h) running in the direction of the axis (C) and a second arm (10g) extending outwards in a direction essentially radial to the axis (C). The second arm (10g) has a first bearing surface (10l) and the second ring part (10b) has a second bearing area (10k). The first and the second bearing areas (10l, 10k) are designed to fit perfectly on top of each other. The first and second bearing areas (10k, 10l) exhibit a discontinuity (U1,U2).Type: ApplicationFiled: July 8, 2002Publication date: January 9, 2003Applicant: Burckhardt Compression AGInventor: Norbert Feistel