Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders
Patent
1989-06-22
1990-12-04
Chambers, A. Michael
Pumps
Three or more cylinders arranged in parallel, radial, or...
Radial cylinders
92 61, F04B 104
Patent
active
049750259
ABSTRACT:
A hydraulic radial piston pump having a plurality of pistons arranged radially around the rotary shaft for sequential reciprocating motion in which working oil is introduced from the inner oil chamber in the pump casing supporting the rotary shaft and pistons passed into the outer oil chambers provided behind the pistons and then, discharged from these outer oil chambers to delivery passages. A eccentric motion element, the outer periphery of which abuts on the head of each piston, is connected to the rotary shaft by connecting means so that the eccentric motion element can perform eccentric movements about the rotary shaft. The eccentric motion element is also prevented by rotation stopper means from rotating about the rotary shaft. The piston has a suction orifice provided in the head thereof which is yieldingly pressed against the outer periphery of the eccentric motion element by spring means. The outer periphery of the eccentric motion element is equipped with grooves for the opening and closing of the suction orifices to the inner oil chamber in accordance with the relative circumferential motion of the eccentric motion element with respect to the piston. Accordingly, while the groove allows the suction orifice to open or close to the inner oil chamber in relation to the stroke motion of the piston, the full length of the stroke in the extended position and in the retracted position of the piston can be designated as a suction stroke and a discharge stroke respectively.
REFERENCES:
patent: 3744380 (1973-07-01), Steiger
patent: 4673337 (1987-06-01), Miller
Katagawa Fumiaki
Yamamura Makoto
Chambers A. Michael
Kayaba Kogyo Kabushiki Kaisha
LandOfFree
Hydraulic radial piston pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic radial piston pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic radial piston pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-880733