US 12,117,006 B2
Conveyor device at least for conveying a fluid and pump comprising such a conveyor device
Alois Krutzenbichler, Starnberg (DE); Lars Freiherr Varnbuler Von Und Zu Hemmingen-Redschlag, Wiernsheim-Pinache (DE); Raymond Ritschka, Weissach (DE); and Nico Haug, Sindelfingen (DE)
Assigned to Watson Marlow GmbH, Rommerskirchen (DE)
Appl. No. 17/755,197
Filed by Watson Marlow GmbH, Rommerskirchen (DE)
PCT Filed Oct. 22, 2020, PCT No. PCT/EP2020/079816
§ 371(c)(1), (2) Date Apr. 22, 2022,
PCT Pub. No. WO2021/078897, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 102019128678.6 (DE), filed on Oct. 23, 2019.
Prior Publication US 2022/0389927 A1, Dec. 8, 2022
Int. Cl. F04C 5/00 (2006.01); F04B 43/08 (2006.01); F04B 43/12 (2006.01); F04B 53/20 (2006.01)
CPC F04C 5/00 (2013.01) [F04B 43/08 (2013.01); F04B 43/12 (2013.01); F04B 53/20 (2013.01); F04C 2240/802 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A conveyor device for at least conveying a fluid with at least one conveyor chamber, with at least one dimensionally stable conveyor chamber element that at least partially delimits the at least one dimensionally stable conveyor chamber, with at least one elastically deformable and annular conveyor element that delimits the at least one dimensionally stable conveyor chamber together with the at least one dimensionally stable conveyor chamber element and is arranged on the at least one dimensionally stable conveyor chamber element, and with at least one pressing unit having at least one pressing element, the at least one pressing unit generating an inhomogeneous pressing force in a non-conveying state of the conveyor element, at least in a sealing region between the conveyor element and the at least one dimensionally stable conveyor chamber element along a maximum overall extent of the sealing region and along a maximum circumferential extent between the conveyor element and the at least one dimensionally stable conveyor chamber element, wherein the pressing unit is designed in such a way that the conveyor element has an inhomogeneous compression in at least a non-conveying state of the conveyor element, along the maximum overall extent of the sealing region along a maximum circumferential extent of the annular conveyor element, wherein the annular conveyor element is compressed to different degrees by the pressing unit along the maximum overall extent of the sealing region and along the maximum circumferential extent of the annular conveyor element, as a result of a geometric design of a pressing surface of the at least one pressing element of the at least one pressing unit; and
wherein the at least one pressing element is a clamping ring, the clamping ring includes a pressing surface on a side of the clamping ring facing the annular conveyor element, the pressing surface has a varying distance from an inner surface of the clamping ring facing away from the pressing surface, along a maximum longitudinal extent of the pressing surface in a circumferential direction of the at least one pressing element.