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91. 发明授权

US11852243B2 Method and device for monitoring the condition of a piston rod sealing system of a piston compressor 有权
公开(公告)号：US11852243B2
公开(公告)日：2023-12-26
申请号：US17638597
申请日：2020-08-27
申请人： BURCKHARDT COMPRESSION AG
发明人： Norbert Feistel
IPC分类号： F16J15/3296 , F16J15/00
CPC分类号： F16J15/3296 , F16J15/004
摘要： A method for monitoring the condition of a piston rod sealing system of a piston compressor, the system having at least two annular chambers arranged one behind the other in a longitudinal direction and each having a sealing element arranged therein. A piston rod running through the sealing elements and the annular chambers is moved back and forth in the longitudinal direction, sealed by the sealing elements. The system has an inlet side and an outlet side, between which a difference in pressure occurs, and said difference in pressure has static and dynamic pressure component. When there is leakage gas in the annular chambers, at least the dynamic pressure component of the leakage gas is measured in the piston rod sealing system. A change in the condition of at least one of the sealing elements is determined from a change in the dynamic pressure component as a function of time.

92. 发明公开

US20230184332A1 PISTON RING ARRANGEMENT, PISTON COMPRESSOR AND METHOD FOR SEALING A COMPRESSION CHAMBER 审中-公开
公开(公告)号：US20230184332A1
公开(公告)日：2023-06-15
申请号：US17908569
申请日：2021-03-03
申请人： BURCKHARDT COMPRESSION AG
发明人： David FLOOD
IPC分类号： F16J9/28 , F16J9/16 , F16J15/24 , F16J15/28 , F16J9/06 , F16J9/02 , F04B39/04
CPC分类号： F16J9/28 , F04B39/042 , F16J9/02 , F16J9/06 , F16J9/16 , F16J15/24 , F16J15/28
摘要： The piston ring assembly having a first and a second endless sealing ring and an elastic ring carrier, the first and the second sealing ring extending in a circumferential direction (U) and each having an outer circumferential surface, the first sealing ring having a first center point (M1) with respect to its outer circumferential surface and the second sealing ring having a second center point (M2 ) with respect to its outer circumferential surface, the first and second sealing rings each having a longitudinal axis (L) running perpendicular to the circumferential direction (U), wherein the ring carrier runs in the circumferential direction (U), and wherein the ring carrier and the first and second sealing rings are designed to be mutually adapted in such a way that the first and second sealing rings are arranged one after the other in the ring carrier in the direction of the longitudinal axis (L), and in that their first and second centers (M1, M2) are arranged at a distance from one another radially with respect to the longitudinal axis (L), the sealing rings being pressed in opposite directions against the inner wall of a cylinder when the piston ring assembly is used in accordance with the invention.

93. 发明授权

US11519267B2 Method and device for expanding a gas with a reciprocating-piston machine 有权
公开(公告)号：US11519267B2
公开(公告)日：2022-12-06
申请号：US16630161
申请日：2018-07-10
申请人： BURCKHARDT COMPRESSION AG
发明人： Alexandre Voser
IPC分类号： F01B25/02 , F04C29/12 , F16K3/08 , F04B39/08 , F04B39/10 , F01L7/06 , F04C21/00 , F01L7/00
摘要： A method for expanding a compressed gas (GD) at a gas pressure (pD) with a reciprocating-piston machine, wherein the reciprocating-piston machine includes a piston that can move to and fro and a working chamber delimited by the movable piston. The method being carried out as follows: the compressed gas (GD) is supplied to the working chamber via an actuatable rotary slide valve, wherein the compressed gas (GD) in the working chamber is expanded in the working chamber.

94. 发明授权

US11486505B2 Plate valve and method for operating same 有权
公开(公告)号：US11486505B2
公开(公告)日：2022-11-01
申请号：US16978996
申请日：2019-03-08
申请人： BURCKHARDT COMPRESSION AG
发明人： Reiner Schulz
IPC分类号： F16K15/02 , F16K25/04
摘要： An automatic plate valve having a valve seat, a valve guard, a longitudinal axis (L) and a valve element arranged between the valve seat and the valve guard and movable along the longitudinal axis (L). The valve seat includes an end face having with valve seat openings oriented towards the valve guard, and a plurality of passages, which have a fluid-conducting connection to the valve seat openings. The valve element includes sealing element interacting with the valve seat openings. Wherein some of the passages have a different distance to the longitudinal axis in a radial direction (R). The end face of the valve seat including a plurality of grooved recesses, forming valve seat openings, with passages open into the same recess, the passages forming a fluid-conducting connection to the valve seat opening. Some of these passages connected to the valve seat opening have different distances to the longitudinal axis.

95. 发明申请

US20220099081A1 SEAT VALVE 有权
公开(公告)号：US20220099081A1
公开(公告)日：2022-03-31
申请号：US17421557
申请日：2020-01-08
申请人： BURCKHARDT COMPRESSION AG
发明人： Reiner SCHULZ
IPC分类号： F04B39/10 , F16K15/06
摘要： Seat valve, with a valve body having a plurality of inlet channels, with a plurality of closing elements arranged movably in a longitudinal direction L, each inlet channel being assigned a closing element for opening and closing the inlet channel, with a closing spring assigned to each closing element. The closing spring applies a prestressing force to the respective closing element to close the inlet channel. Each closing element assigned a braking device which is arranged separately from the closing element and which gradually brakes an opening movement of the closing element when the inlet channel is opened, independently of the closing spring. The braking device having a stop body with a stop surface against which the closing element can be brought to bear after an opening movement when the inlet channel is opened, the stop body being arranged movably and/or yieldingly in the opening direction of the closing element.

96. 发明授权

US10859078B2 Poppet valve 有权
公开(公告)号：US10859078B2
公开(公告)日：2020-12-08
申请号：US15767598
申请日：2016-10-12
申请人： BURCKHARDT COMPRESSION AG
发明人： Reiner Schulz
IPC分类号： F04B39/10 , F16K15/02 , F16K15/06
摘要： Poppet valve for a piston compressor, having a valve body with a plurality of inlet ducts, wherein each inlet duct has an inlet section and an outlet section. The outlet section opens into a valve seat, wherein each inlet duct is assigned a closing element and a spring. The closing element can be moved in an axial direction (A) in such a way that the valve seat can be closed by way of the closing element. The spring has a first spring end section and a second spring end section, wherein the spring is arranged in the inlet duct and bears with the first spring end section against and is held on the inlet section of the inlet duct. The second spring end section is connected to the closing element, to bring about a pre-stressing force on the closing element, which pre-stressing force is oriented towards the valve seat.

97. 发明申请

US20200216641A1 FILLER PARTICLE CONTAINING FIBRES, HAVING IMPROVED ANCHORING IN A POLYTETRAFLUOROETHYLENE MATRIX 审中-公开
公开(公告)号：US20200216641A1
公开(公告)日：2020-07-09
申请号：US16628925
申请日：2018-06-13
申请人： BURCKHARDT COMPRESSION AG
发明人： Inga OLLIGES-STADLER
IPC分类号： C08K9/10 , C08K7/02 , C08L27/18
摘要： A filler particle containing fibres, in which two or more fibres are enclosed at least partially in a solid particle made of a polymer selected from the group consisting of polyphenylene sulfides, liquid-crystal polymers, polyphenylene sulfones, polyether sulfones, thermoplastic polyimides, polyamide-imides, epoxy resins, perfluoroalkoxy polymers and any mixtures of two or more of the abovementioned polymers, wherein the end opposite the end enclosed in the solid particle of at least some fibres protrudes out of the solid particle. The fibres having a maximum length of 1000 μm and a maximum thickness of 100 μm. Such fibres can be obtained by mixing the polymer with fibres, by melting the polymer and/or chemical reaction of the polymer components, by cooling the mixture of molten polymer and fibres to give a solid fibre-polymer composite and by comminution of the fibre-polymer composite to give filler particles containing fibres a maximum length of 1000 μm.

98. 发明授权

US10697445B2 Valve closure for a piston compressor valve and method for operating the valve closure 有权
公开(公告)号：US10697445B2
公开(公告)日：2020-06-30
申请号：US16499074
申请日：2018-03-27
申请人： BURCKHARDT COMPRESSION AG
发明人： Alexandre Voser
IPC分类号： F04B39/10 , F04B39/08 , F16K3/08 , F16K3/10 , F16K15/06 , F16K15/18
摘要： A valve closure for a piston compressor valve including: a valve seat having a plurality of passage openings, a shaft having an axis of rotation (D), and a rotatable closing element connected to the shaft for opening and closing the passage openings, the valve seat having a flat end face, to which the passage openings lead and a center (Z): the passage openings extending radially to the center (Z); and the closing element having a center point (M) and a plurality of closing arms extending radially to the center point (M). The shaft can be rotated about the axis of rotation and can be slid in the extension direction of the axis of rotation extending perpendicularly to the end face and through the center (Z); each closing arm having a sealing surface substantially complementary to the passage openings in accordance with the rotation of the closing element.

99. 发明授权

US10364894B2 Sealing assembly and method for the operation thereof 有权
公开(公告)号：US10364894B2
公开(公告)日：2019-07-30
申请号：US15100641
申请日：2014-12-02
申请人： Burckhardt Compression AG
发明人： Pascal De Lapersonne , Norbert Feistel , Alexandre Voser
IPC分类号： F16J15/26 , F16J15/34
摘要： The invention relates to a sealing assembly (1) for sealing a piston rod (2) of a piston compressor, which piston rod extends in an axial direction (A) and can be moved back and forth in the axial direction (A). Said sealing assembly (1) comprises at least one packing chamber (4), wherein the packing chamber (4) is bounded in the axial direction (A) by a first and a second side wall (5, 6), wherein at least one sealing ring (7) or one scraping ring (8) and a spring device (9) are arranged in the packing chamber (4), and wherein a spring device (9) and at least one sealing ring (7) or one scraping ring (8) are arranged one after the other in the axial direction (A) proceeding from the first side wall (5), wherein the sealing ring (7) or the scraping ring (8) lies against the second side wall (6), and wherein the spring device (9) is designed as a magnetic spring and consists of two assemblies (9a, 9b) spaced apart in the axial direction (A), a first assembly (9a) and a second assembly (9b), wherein each assembly (9a, 9b) comprises at least one magnet (10a, 10b), and wherein the magnets (10a, 10b) are arranged in the two assemblies (9a, 9b) in a mutually matched manner in such a way that the two assemblies (9a, 9b) repel each other.

100. 发明授权

US10359116B2 Dry-running piston rod packing and method for operating a dry-running piston rod packing 有权
公开(公告)号：US10359116B2
公开(公告)日：2019-07-23
申请号：US15778870
申请日：2016-11-30
申请人： BURCKHARDT COMPRESSION AG
发明人： Norbert Feistel
IPC分类号： F16J15/26 , F16J15/44 , F16J15/00 , F16J15/56
摘要： The dry-running piston rod packing for sealing a piston rod supported in such a way that the piston rod can be moved in a longitudinal direction (L) having at least one chamber ring, a sealing chamber, and a sealing ring arranged in the sealing chamber, wherein the piston rod packing has a high-pressure side and a low-pressure side, wherein a lift-off device is designed and arranged in such a way that the lift-off device can lift and lower the sealing ring in the longitudinal direction (L).

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