| (19) |
 |
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(11) |
EP 2 405 138 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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03.10.2012 Bulletin 2012/40 |
| (43) |
Date of publication A2: |
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11.01.2012 Bulletin 2012/02 |
| (22) |
Date of filing: 28.01.2010 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
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 SE SI SK SM TR |
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Designated Extension States: |
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AL BA RS |
| (30) |
Priority: |
28.01.2009 NL 2002460
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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10152003.9 / 2224132 |
| (71) |
Applicant: J.C.R. Van Der Hart Holding B.v. |
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3054 AK Rotterdam (NL) |
|
| (72) |
Inventor: |
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- van der Hart, Johann Carl Rudolf
3054 AK Rotterdam (NL)
|
| (74) |
Representative: Hutter, Jacobus Johannes |
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Nederlandsch Octrooibureau
J.W. Frisolaan 13
2505 LS Den Haag
2505 LS Den Haag (NL) |
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| |
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(57) The invention relates to a pumping device comprising a first low pressure plunjer
with a first plunjer surface area and which is up and down moveable in a first cylinder,
and a functionally coupled second, high pressure plunjer with a second, smaller plunjer
area and which is moveable in a second cylinder, which first plunger in operation
drives the second cylinder causing in operation an amplification of the compressor
force for pumping a fluid, wherein further a breathing segment is provided between
both plungers, in which the space of the breathing segment is in fluid connection
coupled with an inlet of the fluid which needs to be pumped, like a gas, and is provided
with a regulator for in operation maintaining a small overpressure on the breathing
segment.