EP 3752715 B1 20230329 - LOBE PUMP
Title (en)
LOBE PUMP
Title (de)
DREHKOLBENPUMPE
Title (fr)
POMPE À PISTON ROTATIF
Publication
Application
Priority
- DE 102018103460 A 20180215
- EP 2019053640 W 20190214
Abstract (en)
[origin: WO2019158631A1] The invention relates to a lobe pump having • a) a housing (10), which has an inlet (11) and an outlet (12) for the medium to be pumped, • b) at least one rotary piston (20), which is mounted driveably and rotatably in the housing (10) and which has at least two transport vanes (22) provided with a contour, which transport the medium to be conveyed from the inlet (11) to the outlet (12), • c) and a sealing element (30) per rotary piston (20), which sealing element is mounted on a sealing body (42) and runs against the contour of the rotary piston (20) as the rotary piston (20) rotates and performs a deployment movement from a minimum diameter of the rotary piston (20) to a maximum diameter of the rotary piston (20) and a retraction movement from the maximum diameter of the rotary piston (20) to the minimum diameter of the rotary piston (20) on different sides of the transport vanes (22), wherein • d) the path covered by the sealing element (30) on the infeed side (221) of the transport vane (22) during the retraction movement is shorter than the path on the outfeed side (222) during the deployment movement.
IPC 8 full level
F01C 21/08 (2006.01); F04C 2/332 (2006.01); F04C 2/46 (2006.01); F04C 15/00 (2006.01)
CPC (source: EP US)
F01C 21/08 (2013.01 - EP); F04C 2/332 (2013.01 - EP); F04C 2/46 (2013.01 - EP); F04C 15/0007 (2013.01 - US); F01C 21/0809 (2013.01 - EP); F04C 15/0007 (2013.01 - EP); F04C 2240/20 (2013.01 - EP US); F04C 2250/20 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019158631 A1 20190822; CN 111742114 A 20201002; CN 111742114 B 20220624; DE 102018103460 A1 20190822; DE 102018103460 B4 20230216; EP 3752715 A1 20201223; EP 3752715 B1 20230329; MX 2020005971 A 20201207; US 11927185 B2 20240312; US 2021363988 A1 20211125; ZA 202004574 B 20220126
DOCDB simple family (application)
EP 2019053640 W 20190214; CN 201980007027 A 20190214; DE 102018103460 A 20180215; EP 19705493 A 20190214; MX 2020005971 A 20190214; US 201916970025 A 20190214; ZA 202004574 A 20200723