Title:
予負荷されたダイヤフラムを備えた液圧式で駆動されるダイヤフラムポンプ
Document Type and Number:
Japanese Patent JP4416149
Kind Code:
B2
Abstract:
The hydraulic membrane pump has a membrane (1) clamped at the edges between a pump body (2) and a pump cover (3), which separates the discharge zone (4) from the hydraulic zone (5). The membrane is tensed by a spring in the suction stroke direction. The hydraulic membrane drive has an oscillating displacement piston (6), which slides in the pump body between a supply zone (8) for the hydraulic fluid and the hydraulic zone. The spring tension on the membrane is sufficiently strong to apply pressure to the hydraulic fluid in the hydraulic zone, to build up an overpressure against the discharge zone.
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Inventors:
Nils Cohlhase
Rüdiger Chenor
Waldemer horn
Rüdiger Chenor
Waldemer horn
Application Number:
JP2002261690A
Publication Date:
February 17, 2010
Filing Date:
September 06, 2002
Export Citation:
Assignee:
LEWA GmbH
International Classes:
F04B43/067; F04B45/06
Domestic Patent References:
| JP38016177B1 | ||||
| JP3149371A | ||||
| JP63005188A | ||||
| JP60098182A | ||||
| JP7077164A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel