DECOUPLING ELEMENT FOR A FUEL-INJECTION DEVICE
1 Assignment
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Accused Products
Abstract
A decoupling element for a fuel-injection device has a low-noise and pivotable construction. The fuel-injection device includes at least a fuel injector and a receiving bore in a cylinder head for the fuel injector as well as the decoupling element between a valve housing of the fuel injector and a wall of the receiving bore. The decoupling element is in the form of a ring, in particular a closed ring, which has a lower end face that sits on a shoulder of the receiving bore, and which has an upper end face that rises conically from radially outside toward radially inside and is in intimate contact with a spherically curved shoulder area of the valve housing of the fuel injector. The fuel-injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing combustion engine having externally supplied ignition.
6 Citations
24 Claims
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1-12. -12. (canceled)
- 13. A decoupling element for a fuel-injection device for a direct injection of fuel into a combustion chamber, the fuel-injection device including at least a fuel injector and a receiving bore for the fuel injector, and the decoupling element being introduced between a valve housing of the fuel injector and a wall of the receiving bore, wherein the decoupling element is a closed ring, having a lower end face that sits on a shoulder of the receiving bore, and an upper end face that increases from radially outside toward radially inside either conically or additionally extends with a spherical curvature having a large radius, the upper end face being in intimate contact with a spherically curved or conical shoulder area of the valve housing of the fuel injector.
Specification