Fuel injector arrangement
AssigneeWoodward L'Orange GmbH
InventorsIngmar Joachim Berger, Enrico Bärow, Michael Nitsche
Life of this patent
Estimating the term…
Abstract
The invention relates to a fuel injector arrangement (1) comprising a number of fluid supply paths (29, 31, 39), namely, a first (29), a second (31) and a third fluid supply path (39). The fuel injector arrangement (1) has a first switching device (43) in the second fluid supply path (31). Said first switching device, controlled by the fluid pressure in the third fluid supply path (39), opens or blocks the second fluid supply path (31). The fuel injector arrangement (1) has a second switching device (49) in the first fluid supply path (29). Said second switching device, controlled by the fluid pressure downstream of the first switching device (43) in the second fluid supply path (31), opens or blocks the first fluid supply path (29).
Claims20
A fuel injector arrangement comprising:
- a first fluid supply path;
- a second fluid supply path;
- a third fluid supply path;
- a first switching device in the second fluid supply path, configured to be controlled based on fluid pressure in the third fluid supply path to controllably open and block the second fluid supply path;
- and
- a second switching device in the first fluid supply path, configured to be controlled based on fluid pressure in the second fluid supply path downstream from the first switching device to controllably open and block the first fluid supply path.
An internal combustion engine, comprising at least one fuel injector arrangement comprising:
- a first fluid supply path;
- a second fluid supply path;
- a third fluid supply path;
- a first switching device in the second fluid supply path , configured to be controlled based on fluid pressure in the third fluid supply path to controllably open and block the second fluid supply path;
- and
- a second switching device in the first fluid supply path, configured to be controlled based on fluid pressure in the second fluid supply path downstream from the first switching device to controllably open and block the first fluid supply path.
A method of supplying fuel, comprising:
- providing fluid pressure to a first fluid supply path in fluid communication with a first switching device in a second fluid supply path;
- opening, by the first switching device and based on fluid pressure in the first fluid supply path, the second fluid supply path to second switching device in a third fluid supply path;
- blocking, by the first switching device and based on fluid pressure in the first fluid supply path, the second fluid supply path;
- opening, by the second switching device and based on fluid pressure in the second fluid supply path, the third fluid supply path;
- and
- blocking, by the second switching device and based on the fluid pressure in the second fluid supply path, the third fluid supply path.
Dependencies are inferred from the claim text.