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:
Mar. 11, 2025
Filed:
Jun. 14, 2022
Hydac Fluidtechnik Gmbh, Saar, DE;
Christian Groh, Igersheim, DE;
Frank Kattler, Püttlingen, DE;
HYDAC FLUIDTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A pump device having a pump piston () longitudinally movable in a pump housing (), which pump piston is actuated by an actuating solenoid () to open an outlet valve () for discharging a fluid during a delivery stroke. In a pump space () of the pump housing (), during a suction stroke, the pump piston () generates a negative pressure and, upon passing over a control edge () delimiting the pump space (), the piston establishes a fluid connection between a fluid inlet () in the pump housing () and the pump space (). The pump space (), under the negative pressure in the pump space (), is filled resulting from a fluid flow along the outer circumference () of parts of the pump piston () toward the outlet valve (). During the delivery stroke, this filling volume is discharged from the pump space () via the outlet valve ().