Volkswagen Ag

Volkswagen Aktiengellschaft

Andreas Thaysen

Jörg Theobald

Lars Hentschel

Sevket Celovic

Feitse Ebus

Kay Schintzel

When fuel is injected into a combustion chamber () of a cylinder () of an engine () of a vehicle (), the fuel is injected in the form of multiple jets () with the aid of an injector (). In this connection, a first plane is defined in which both the central axis () of the injector () and the central axis () of the cylinder () lie. Furthermore, a second plane is defined in which both the central axis () of the injector () and the surface normal of the first plane lie. The jets () are generated in such a way that for each jet pair, which is formed from two of the jets (), an angle between the projections of the two central axes of the two jets of the jet pair into the second plane is smaller than 50&#xb0;.

Method and device for injecting fuel into a combustion chamber

A high-pressure fuel pump for an internal combustion engine with direct injection of fuel into at least one combustion chamber of the internal combustion engine is provided. The high-pressure fuel pump includes a low-pressure connection for low-pressure fuel, wherein the low-pressure connection supplies low-pressure fuel to the high-pressure fuel pump, a low-pressure fuel supply chamber, a pump element and a high-pressure connection for discharging fuel from the high-pressure fuel pump. The low-pressure connection, the low-pressure fuel supply chamber, the pump element, and the high-pressure connection are provided in succession in a flow direction of the fuel. A medium-pressure fuel connection opens into a medium-pressure fuel supply chamber for supplying medium-pressure fuel to the high-pressure fuel pump. A fuel switching valve selectively connects the low-pressure fuel supply chamber or the medium-pressure fuel supply chamber in a fluid-conducting manner to the pump element.

High-pressure fuel pump for an internal combustion engine with direct injection

Growing community of inventors

Wolfsburg, Germany

Andreas Thaysen