The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
May. 02, 2023
Caterpillar Global Mining Llc, Tucson, AZ (US);
Pengfei Ma, Naperville, IL (US);
Caterpillar Global Mining LLC, Tucson, AZ (US);
Abstract
A flow limiter for a cut-off valve of a hydraulic pumping system and a hydraulic system using such a flow limiter. The flow limiter provides for limiting a flow through a cut-off valve. The flow limiter for a cut-off valve of a hydraulic pumping system includes a valve body with a hollow channel. The hollow channel has a fluid inlet and a fluid outlet, and the fluid inlet is in fluid communication with a discharge line of the cut-off valve in a mounted state of the flow limiter. A valve element is slidably arranged within the channel and can transition from a first position towards a second position, if a predefined fluid pressure threshold is exceeded at the fluid inlet. The valve element is arranged in the hollow channel so that in the second position a fluid flow from the fluid inlet to the fluid outlet is larger than in the first position.