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:
Apr. 03, 2001
Filed:
Jun. 01, 1999
Kai Lehtonen, Vaasa, FI;
Wartsila NSD OY AB, Helsinki, FI;
Abstract
A control and safety valve arrangement in a fuel feeding system of an internal combustion engine, especially a large diesel engine, in which fuel is pumped from a fuel tank at least to one common pressure accumulator unit (,) and is fed therefrom under high pressure to be injected at least into two cylinders of the engine. The pressure accumulator unit (,) is connect to the fuel tank with a separate return flow line (,), which is provided with valve means provided with two separate control arrangements operationally independent on each other so that the pressure accumulator unit (,) can be connected to the fuel tank by means of a first control arrangement under the influence of a separate control pressure when necessary and in addition by means of a second control arrangement in case the pressure in the pressure accumulator unit (,) exceeds a certain selected limit value.