EP 4137701 A1 20230222 - PUMP CAPABLE OF DELIVERING HEATED FLUID
Title (en)
PUMP CAPABLE OF DELIVERING HEATED FLUID
Title (de)
PUMPE ZUR FÖRDERUNG VON ERWÄRMTEM FLUID
Title (fr)
POMPE CAPABLE DE FOURNIR UN FLUIDE CHAUFFÉ
Publication
Application
Priority
CN 202121917675 U 20210816
Abstract (en)
The invention discloses a pump capable of delivering a heated liquid. The pump includes a driving portion, an impeller portion, and a cover portion that are sequentially connected. A fluid inlet and a fluid outlet are provided on the cover portion, the driving portion includes a first housing, the impeller portion includes an impeller and a second housing, the first housing, the second housing, and the cover portion are sequentially fixedly connected to define an impeller cavity for mounting the impeller, and the second housing and the impeller are respectively made of materials having same or similar thermal expansion coefficients. Therefore, size changes of the second housing and the impeller after thermal expansion are close, so that a risk of blocking or excessive friction is reduced.
IPC 8 full level
F04D 29/02 (2006.01); F04D 29/22 (2006.01); F04D 29/40 (2006.01); F04D 29/42 (2006.01); F04D 29/62 (2006.01)
CPC (source: EP)
F04D 29/026 (2013.01); F04D 29/2227 (2013.01); F04D 29/406 (2013.01); F04D 29/426 (2013.01); F04D 29/628 (2013.01); F05D 2300/43 (2013.01); F05D 2300/50211 (2013.01)
Citation (search report)
- [XI] US 5044883 A 19910903 - NEUEDER LUDWIG [DE]
- [XAI] US 2018087532 A1 20180329 - WELSCHINGER THOMAS [DE], et al
- [Y] FR 2402785 A1 19790406 - JULIEN & MEGE [FR]
- [Y] EP 0484214 B1 19941228 - POMPES SALMSON SA [FR]
- [XAI] ASHTON D R: "THE DEVELOPMENT OF CENTRIFUGAL CHEMICAL PROCESS PUMPS USING MODERN HIGH-GRADE CERAMIC MATERIALS", WORLD PUMPS, ELSEVIER ADVANCED TECHNOLOGY, GB, no. 3, 1 March 1990 (1990-03-01), pages 27 - 30, XP000134451, ISSN: 0262-1762
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22187217 A 20220727; CN 202121917675 U 20210816