Patents Assigned to Burckhardt Compression AG
  • Patent number: 11598433
    Abstract: Poppet valve, plate valve, with a longitudinal axis (L), with a valve seat having a plurality of valve seat passage channels, with a catcher arranged at a distance from the valve seat in the direction of the longitudinal axis (L), and with a sealing element arranged movably between the valve seat and the catcher for opening and closing the valve seat passage channels. One of the valve components formed as the valve seat or the catcher having a plurality of passage channel limiting sections and a plurality of web portions, each extending mutually at an angle (?), wherein at least one of the valve components formed as valve seat or catcher is produced at least in sections by additive manufacturing, and wherein at least one of the passage channel limiting sections is dimensioned shorter in the direction of the longitudinal axis (L).
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: March 7, 2023
    Assignee: BURCKHARDT COMPRESSION AG
    Inventors: Matthias Pfister, Reiner Schulz
  • Patent number: 11519267
    Abstract: 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.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: December 6, 2022
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Alexandre Voser
  • Publication number: 20220372963
    Abstract: The piston compressor for compressing a gas having a cylinder and also including a piston, a piston rod, packing, a crosshead and a drive, wherein: the piston is disposed for movement in a longitudinal direction L inside the cylinder; the piston is connected to the crosshead by means of a piston rod; packing is disposed between the piston and the crosshead, through which packing the piston rod runs; the crosshead is driven by the drive; in addition an activatable magnetic bearing is disposed between the piston and the crosshead; the magnetic bearing can generate a magnetic force Fm on the piston rod, at least perpendicularly to the longitudinal direction L; and an activation device activates the magnetic force Fm generated by the magnetic bearing on the piston rod.
    Type: Application
    Filed: October 21, 2020
    Publication date: November 24, 2022
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Alexandre VOSER
  • Publication number: 20220372962
    Abstract: The packing seal for a piston compressor, having a longitudinal axis L as well as, following one after the other in the direction of the longitudinal axis L, a fastening part and a cylindrical part, wherein a magnetic bearing and at least one chamber ring with a sealing ring arranged therein are arranged following one after the other in the direction of the longitudinal axis L in the cylindrical part, wherein the magnetic bearing includes at least one controllable electromagnet.
    Type: Application
    Filed: October 21, 2020
    Publication date: November 24, 2022
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Alexandre VOSER
  • Patent number: 11486505
    Abstract: 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.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 1, 2022
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Reiner Schulz
  • Publication number: 20220332905
    Abstract: The present invention relates to a sealing element and/or a support ring, in particular for a reciprocating compressor, manufactured by compression molding of a mixture of chips of carbon fiber-reinforced composite material, wherein at least part of the chips contains carbon fibers having a length of 3 to 20 mm, and wherein the carbon fibers in the sealing element and/or support ring have a random fiber orientation.
    Type: Application
    Filed: September 6, 2020
    Publication date: October 20, 2022
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Alexandre VOSER
  • Publication number: 20220325800
    Abstract: 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.
    Type: Application
    Filed: August 27, 2020
    Publication date: October 13, 2022
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Norbert FEISTEL
  • Patent number: 11396869
    Abstract: 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.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: July 26, 2022
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Reiner Schulz
  • Patent number: 11390727
    Abstract: 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 ?m and a maximum thickness of 100 ?m. 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 ?m.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 19, 2022
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Inga Olliges-Stadler
  • Publication number: 20220099081
    Abstract: 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.
    Type: Application
    Filed: January 8, 2020
    Publication date: March 31, 2022
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Reiner SCHULZ
  • Publication number: 20220065358
    Abstract: The poppet valve including a valve body with a plurality of passage channels, a plurality of closing elements, a plurality of guide means, and a catcher. Each passage channel opening into a valve seat. A closing element is mounted on each guide means movable in a stroke direction. A closing element is associated with each valve seat opposite in the stroke direction, so that valve seats can be closed by the closing elements. Guide means are connected to the catcher, each having a guide section with an inner cavity extending in the stroke direction and a support section bearing surface. The spring extends in the inner cavity of the guide section and is clamped between the bearing surface and the closing element. Guide means have a first stop surface towards the valve seat, closing elements have a second stop surface towards the first stop surface to limit closing element travel.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 3, 2022
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Reiner SCHULZ
  • Publication number: 20210404454
    Abstract: The labyrinth piston compressor comprises a cylinder, a piston disposed in the cylinder, and a piston rod, wherein the piston rod extends in a longitudinal direction (L) and is connected to the piston, and wherein the piston is reciprocally movable in the longitudinal direction (L) within the cylinder, wherein the cylinder comprises a first cylinder cover, wherein an inlet valve and an outlet valve are arranged in the first cylinder cover, and wherein the inlet valve and the outlet valve are arranged symmetrically with respect to a plane of symmetry (S) extending in the longitudinal direction (L) along the piston rod.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 30, 2021
    Applicant: BURCKHARDT COMPRESSION AG
    Inventors: Alexandre VOSER, Reiner SCHULZ, Sandro BRUNNER
  • Publication number: 20210388824
    Abstract: The piston compressor comprises a cylinder as well as a piston arranged therein, a carrier housing with a crosshead mounted in the carrier housing, a spacer which connects the cylinder to the carrier housing, as well as a piston rod extending in a longitudinal direction (L) which connects the crosshead to the piston, wherein the spacer comprises a plurality of support arms, wherein the support arms are connected to and support the cylinder.
    Type: Application
    Filed: September 25, 2019
    Publication date: December 16, 2021
    Applicant: BURCKHARDT COMPRESSION AG
    Inventors: Alexandre VOSER, Reiner SCHULZ, Sandro BRUNNER
  • Patent number: 11193587
    Abstract: Piston ring having an endless base ring and sealing ring have a radially outwardly directed base ring face side. The sealing ring has a radially inwardly directed, circularly running sealing ring inner side with three tangential cuts separating three sealing ring segments are arranged in a circumferential direction (U). The base and sealing rings are arranged in succession in a longitudinal direction (L). A top ring is arranged to adjoin the sealing ring having a top ring has a radially outwardly directed top ring outer side and a radially inwardly directed top ring inner side. The top ring has, on the side opposite the sealing ring, a radially running return flow channel extending radially, the sealing face side protrudes in a radial direction beyond the top ring outer side and the base ring face side. The base and the top rings have a greater tensile strength than the sealing ring.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 7, 2021
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Norbert Feistel
  • Publication number: 20210356049
    Abstract: Poppet valve, plate valve, with a longitudinal axis (L), with a valve seat having a plurality of valve seat passage channels, with a catcher arranged at a distance from the valve seat in the direction of the longitudinal axis (L), and with a sealing element arranged movably between the valve seat and the catcher for opening and closing the valve seat passage channels. One of the valve components formed as the valve seat or the catcher having a plurality of passage channel limiting sections and a plurality of web portions, each extending mutually at an angle (?), wherein at least one of the valve components formed as valve seat or catcher is produced at least in sections by additive manufacturing, and wherein at least one of the passage channel limiting sections is dimensioned shorter in the direction of the longitudinal axis (L).
    Type: Application
    Filed: October 4, 2019
    Publication date: November 18, 2021
    Applicant: BURCKHARDT COMPRESSION AG
    Inventors: Matthias PFISTER, Reiner SCHULZ
  • Publication number: 20210025508
    Abstract: 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.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 28, 2021
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Reiner SCHULZ
  • Publication number: 20200386218
    Abstract: 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: Application
    Filed: August 28, 2017
    Publication date: December 10, 2020
    Applicant: BurckHardt CompRession AG
    Inventor: Norbert FEISTEL
  • Patent number: 10859078
    Abstract: 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.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 8, 2020
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Reiner Schulz
  • Publication number: 20200216641
    Abstract: 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 ?m and a maximum thickness of 100 ?m. 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 ?m.
    Type: Application
    Filed: June 13, 2018
    Publication date: July 9, 2020
    Applicant: BURCKHARDT COMPRESSION AG
    Inventor: Inga OLLIGES-STADLER
  • Patent number: 10697445
    Abstract: 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.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: June 30, 2020
    Assignee: BURCKHARDT COMPRESSION AG
    Inventor: Alexandre Voser