F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 45/02 (2006.01) F04B 39/10 (2006.01) F04B 43/08 (2006.01) F04B 45/027 (2006.01)
Patent
CA 2057067
(57) Abstract A bellow-type pump comprises a plurality of bellows (51) to (54) grouped radially about the drive axis and driven simul- taneously so that the torque is applied uniformly. Asymmetrical loading of the bellows, which reduces their service life, is prevent- ed by improved coupling of the eccentric movement of the drive shaft (34) with the bellows. The outlets (62) from the individual bellows can be connected in parallel or in series, as desired, so that a greater delivery volume or higher delivery pressure can be attained, depending on requirements. The pump housing (1) consists of a double-cross piece used as an assembly unit in ultra- high vacuum technology. To ensure complete evacuation of the pump, for example to allow subsequent introduction of ultrapure gases, spring-loaded valves (82) which block the direction of flow are maintained temporarily in an open position during normal operation. To this end, the closure bodies of the valves are made from a magnetic material and can be influenced by a magnet (84) mounted on the outside of the pump housing (1, 73), which is made from non-magnetic material. The valve returns to its closed position immediately the magnet (84) is brought into, and possibly stopped in, a remote position.
Banfer Hans-Juergen
Hoehn Norbert
Runge Hartmut
Aktiengesellschaft Siemens
Banfer Hans-Juergen
Fetherstonhaugh & Co.
Hoehn Norbert
Runge Hartmut
LandOfFree
Bellow-type pump with a plurality of radially arranged bellows does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bellow-type pump with a plurality of radially arranged bellows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bellow-type pump with a plurality of radially arranged bellows will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1678680