Injector and rail assembly
AssigneePhinia Delphi Luxembourg Sarl
InventorRavish S. Masti
Life of this patent
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Abstract
An injector and rail assembly for a common rail fuel injection system comprises a fuel injector comprising a head for receiving fuel and a neck region for supporting the head end, a common rail housing defining a reservoir volume for storing fuel at high pressure and including a stem defining a passage for delivering high pressure fuel from the reservoir volume to the head end of the fuel injector, the stem including a threaded portion, and an adaptable mounting arrangement for sealingly mounting the fuel injector to the stem of the common rail housing. The adaptable mounting arrangement comprises a primary nut mounted on the threaded portion of the stem and an annular seal being located on the stem, the primary nut having an internal channel and the head of the fuel injector being received within the internal channel.
Claims11
An injector and rail assembly for a common rail fuel injection system;
- the injector and rail assembly comprising:
- a fuel injector comprising a head for receiving fuel and a neck region for supporting the head end;
- a common rail housing defining a reservoir volume for storing fuel at high pressure and including a stem defining a passage for delivering high pressure fuel from the reservoir volume to the head end of the fuel injector, the stem including a threaded portion, and
- an adaptable mounting arrangement for sealingly mounting the fuel injector to the stem of the common rail housing, the adaptable mounting arrangement comprising;
- a primary nut mounted on the threaded portion of the stem and an annular seal being located on the stem, the primary nut having an internal channel and the head of the fuel injector being received within the internal channel;
- and a further nut mounted on the neck of the fuel injector so that a radially outer surface of the further nut engages with the internal channel of the primary nut;
- wherein the further nut is a slotted nut comprising a slot to enable mounting of the slotted nut into the internal channel of the primary nut.
An adaptable mounting arrangement for an injector and rail assembly for a common rail fuel injection system, the adaptable mounting arrangement comprising;
- a primary nut for mounting on a stem of a common rail housing defining a reservoir volume for fuel, the primary nut defining an injector surface towards the injector, a rail-facing surface towards the common rail housing, and an internal channel for receiving a head end of the fuel injector, in use;
- a nut configured to permit mounting of the nut on a neck of the fuel injector, in use, so that a radially outer surface of the nut engages with the internal channel of the primary nut, wherein the nut is a slotted nut comprising a slot to enable mounting of the slotted nut into the internal channel of the primary nut;
- and
- an annular seal mountable on the stem of the common rail housing.
Dependencies are inferred from the claim text.