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:
Dec. 08, 1992
Filed:
Oct. 11, 1991
Dwight V Stone, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A fuel injection system is disclosed comprising a high pressure actuating fluid pump, a first plurality of hydraulically-actuated unit injectors, and a first high pressure actuating fluid manifold arranged in fluid communication with each of the first plurality of unit injectors. The system further comprises a second plurality of hydraulically-actuated unit injectors, a second high pressure actuating fluid manifold arranged in fluid communication with each of the second plurality of unit injectors, and a device for controlling Helmholtz resonation of pressure waves between the manifolds and/or between the pump and either manifold. Hydraulically-actuated unit injector fuel systems, having multiple manifolds for supplying high pressure actuating fluid to the unit injectors, can establish a Helmholtz resonance effect between the manifolds. The present invention controls the creation of Helmholtz resonance between the manifolds and also between the pump and either manifold.