US 9,810,205 B2
Pump systems and associated methods for use with waterjet systems and other high pressure fluid systems
Chidambaram Raghavan, Seattle, WA (US); Darren Stang, Covington, WA (US); and Scott D. Veenhuizen, Covington, WA (US)
Assigned to OMAX Corporation, Kent, WA (US)
Filed by OMAX Corporation, Kent, WA (US)
Filed on Mar. 17, 2015, as Appl. No. 14/660,804.
Application 14/660,804 is a continuation of application No. 14/164,062, filed on Jan. 24, 2014, granted, now 9,003,955.
Prior Publication US 2015/0252796 A1, Sep. 10, 2015
Int. Cl. F01B 1/00 (2006.01); F04B 11/00 (2006.01); B26F 3/00 (2006.01); F04B 1/16 (2006.01); F04B 1/08 (2006.01); F04B 53/00 (2006.01); F04B 53/14 (2006.01); B24C 5/00 (2006.01); F04B 9/02 (2006.01)
CPC F04B 11/005 (2013.01) [B24C 5/00 (2013.01); B26F 3/004 (2013.01); F04B 1/08 (2013.01); F04B 1/16 (2013.01); F04B 9/02 (2013.01); F04B 11/0058 (2013.01); F04B 53/006 (2013.01); F04B 53/144 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A waterjet system, comprising:
a pressurizing device configured to pressurize a process fluid, wherein the pressurizing device includes:
a crankcase,
a crankshaft operably disposed within the crankcase,
four reciprocating members operably coupled to the crankshaft, wherein each of the reciprocating members is operably coupled to the crankshaft with a corresponding connecting rod of length L, wherein rotation of the crankshaft moves each of the reciprocating members through a stroke distance S, and wherein 2.3≤L/S≤6.5, and
four cylinders mounted to the crankcase, wherein each of the individual reciprocating members is operably disposed in a corresponding one of the individual cylinders; and
a jet outlet downstream from the pressurizing device, the jet outlet being configured to receive the process fluid from the pressurizing device at a pressure greater than 30,000 psi and less than 150,000 psi and to direct a jet including the process fluid toward a workpiece.