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. 18, 2008
Filed:
Oct. 31, 2007
Bradley E. Bartley, Pekin, IL (US);
Scott F. Shafer, Morton, IL (US);
Steven Y. Tian, Bloomington, IL (US);
Timur T. Trubnikov, Peoria, IL (US);
Christopher R. Jones, Peoria, IL (US);
Haithem Algousi, Peoria, IL (US);
Bradley E. Bartley, Pekin, IL (US);
Scott F. Shafer, Morton, IL (US);
Steven Y. Tian, Bloomington, IL (US);
Timur T. Trubnikov, Peoria, IL (US);
Christopher R. Jones, Peoria, IL (US);
Haithem Algousi, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
The pump described herein provides a potentially lower cost alternative to conventional high-pressure pumps by providing a head, a plunger, and a control valve assembly. The head defines a valve bore having a first diameter, a plunger bore having a second diameter, and an intermediate chamber having a third diameter. The plunger is configured to reciprocate within the plunger bore. The plunger, the plunger bore, and the intermediate chamber at least partially define a pumping chamber. The control valve assembly is coupled to the head and includes an actuator moveable in response to an input signal and a valve element coupled to the actuator. The valve element is received within the valve bore and moveable between an open and a closed position. The valve element includes a body having a fourth diameter and a valve head having a fifth diameter. The first diameter is no larger than the second diameter.