US 12,467,549 B2
Pump control shock absorber
Pengfei Ma, Naperville, IL (US)
Assigned to Caterpillar Global Mining LLC, Tucson, AZ (US)
Filed by Caterpillar Global Mining LLC, Tucson, AZ (US)
Filed on May 2, 2023, as Appl. No. 18/310,640.
Prior Publication US 2024/0369078 A1, Nov. 7, 2024
Int. Cl. F16K 17/04 (2006.01); F04B 49/03 (2006.01); F04B 53/10 (2006.01); F15B 13/02 (2006.01); F16K 3/26 (2006.01); F16K 3/34 (2006.01)
CPC F16K 17/046 (2013.01) [F04B 49/03 (2013.01); F04B 53/10 (2013.01); F15B 13/02 (2013.01); F16K 3/26 (2013.01); F16K 3/34 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/422 (2013.01); F15B 2211/428 (2013.01); F15B 2211/522 (2013.01); F15B 2211/528 (2013.01); F15B 2211/55 (2013.01); F15B 2211/8606 (2013.01); F15B 2211/8613 (2013.01); F15B 2211/865 (2013.01); F16K 2200/40 (2021.08)] 13 Claims
OG exemplary drawing
 
1. A flow limiter of a hydraulic pumping system, comprising:
a valve body comprising a hollow channel having a fluid inlet and a fluid outlet, and
a valve element slidably arranged within the channel of the valve body and configured to transition from a first position towards a second position within the channel under a condition where a predefined fluid pressure threshold is exceeded at the fluid inlet of the valve body, the valve element including protrusions through which respective through-holes are formed to be in communication with an interior of the valve element,
wherein the valve element is configured such that in the second position a fluid flow from the fluid inlet to the fluid outlet is larger than in the first position.