Pumps – Successive stages – With interstage intake or additional inlet to latter stage
Patent
1997-09-03
1999-06-29
Freay, Charles G.
Pumps
Successive stages
With interstage intake or additional inlet to latter stage
417470, 417503, 417549, 417547, 417554, F04B 502, F04B 100, F04B 2504
Patent
active
059159278
ABSTRACT:
A plunger pump includes a piston which is driven for reciprocatory motion and associated with a check valve. A space within a cylinder is partitioned by a piston 1p into a first space A which communicates with a discharge port 1ep and a second space B which communicates with a suction port 1ip. To reduce the peak value of a fluctuation in the suction pressure, a third port 2ip communicating with the first space A is added, and the suction port 1ip and the third port 2ip are connected in common to a suction line Pin through check valves 20 and 19, respectively. The first space A has a diameter greater than the diameter of the piston while the second space B has a diameter which is comparable to the diameter of the piston and hence is less than that of the first space A. On the forward stroke of the piston, a braking liquid is drawn into the second space from the suction line Pin. On the return stroke of the piston, a braking liquid is drawn into the first space A from the suction line Pin, and a braking liquid flows from the second space B to the first space A through a center opening in the piston. On the forward stroke of the piston, the braking liquid in the first space A is discharged through a discharge port 1ep. The suction of the braking liquid into the cylinder from the suction line Pin is dispersed between the forward and the return stroke, thus suppressing a peak in the fluctuation in the suction pressure.
Aisin Seiki Kabushiki
Freay Charles G.
Moses Daniel E.
LandOfFree
Reciprocating pump for generating fluid pressure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reciprocating pump for generating fluid pressure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reciprocating pump for generating fluid pressure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1370053