US 12,234,817 B2
Metering positive displacement pump stroke length limiter
Ahmad Hamad Alharbi, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Apr. 18, 2023, as Appl. No. 18/302,633.
Prior Publication US 2024/0352928 A1, Oct. 24, 2024
Int. Cl. F04B 49/12 (2006.01); F04B 13/00 (2006.01)
CPC F04B 49/12 (2013.01) [F04B 13/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system comprising:
a metering positive displacement pump including a body, a stroke adjustment shaft and a stroke adjustment knob, the stroke adjustment knob operable to translate axially with respect to the body to set a stroke length of the metering positive displacement pump; and
a limiter having a hollow body with an axial slot defined across the hollow body, the limiter having a predetermined length corresponding to a minimum permissible stroke length of the metering positive displacement pump,
wherein the limiter is installed over the stroke adjustment shaft of the metering positive displacement pump, and
wherein axial translation of the stroke adjustment knob towards the body of the metering positive displacement pump is limited by the limiter to prevent setting the stroke length below the minimum permissible stroke length.