MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617050966 A) filed by Wanner Engineering, Inc. on April 21, 2026, for Balanced Pressure Seal For High Pressure Pumps.
Inventor includes Hembree, Richard D..
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: A pump includes a cylindrical plunger chamber having an inward projecting radial seal. A plunger moves with a reciprocating stroke within the cylindrical plunger chamber, the plunger having a first diameter, and a second diameter less than the first diameter, the radial seal engaging the plunger at the second diameter for an entire length of the stroke of the plunger. A pressure balancing valve is in fluid communication with the pumping chamber and the hydraulic oil chamber. A fluid passage connects to the plunger chamber at a position between the radial seal and the first diameter of the plunger and leads to the pressure balancing valve. A radial clearance is between the cylinder and the second diameter, and a seal between the first portion and the cylinder having a clearance smaller than the radial clearance allows hydraulic fluid to escape past the seal during a plunger stroke.
Disclaimer: Curated by HT Syndication.
