http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013139630-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0a8e95d5b6b71220515f3878c5f799c0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2205-3375 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F04B13-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F04B7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F04B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-14216 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F04B7-0057 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F04B7-0023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M5-1422 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M5-142 |
| filingDate | 2013-03-08^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_389e3e2ae1f59484b036bdb6ef8db487 |
| publicationDate | 2013-09-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2013139630-A1 |
| titleOfInvention | Piston pump; device for feeding and metering a fluid for medical purposes by means of a piston pump |
| abstract | The invention relates to a piston pump for pumping a fluid, comprising at least two cylinders (14; 15) each having a piston (22; 22'), which can be moved inside the associated cylinder (14; 15) along the longitudinal axis of the cylinder (14; 15) by means of a drive (90). The cylinders (14; 15) are attached to a common pump flange (10). In each cylinder (14; 15), a chamber (23; 23') is formed, said chamber having a volume that changes when the associated piston (22; 22') is moved in the cylinder (11; 11'). The invention is characterized in that the pump flange (10) extends in the direction of motion of the pistons (22; 22'), and at least one inlet port (12) and one outlet port (13), the longitudinal axes of which extend along the pump flange (10), are attached to the pump flange (10). Furthermore, a central valve disk (20) is attached to the side of the pump flange (10) facing away from the cylinders (14; 15). The valve disk lies against the pump flange (10) and continuously rotates during pumping operation of the piston pump. The axis of rotation of the valve disk (20) is perpendicular to the pump flange (10). Furthermore, passages (30; 31) are introduced into the pump flange (10) in the area of the inlet port (12) and the outlet port (13), and cylinder openings (32; 33; 34; 35) are introduced into the pump flange in the area of the cylinders (14; 15). The valve disk (20) has at least two recesses (24; 25) on the flange side, of which a first recess (25) coincides with a cylinder opening (32) of a first cylinder (14) and a passage (30) of the outlet port (13) when the valve disk (20) is rotated into a first angular position, while the second recess (24) coincides with the passage (31) of the inlet port (12) and a cylinder opening (34) in the second cylinder (15) in said first angular position. The first recess (25) then coincides with the passage (30) in the outlet port (13) and a cylinder opening (35) in the second cylinder (15) when the valve disk (20) is rotated into a second angular position, while the second recess (24) coincides with the passage (31) in the inlet port (12) and a cylinder opening (33) in the first cylinder (14) in said second angular position. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015154297-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109821082-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109821082-B |
| priorityDate | 2012-03-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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