Device for metering fuel
AssigneeRobert Bosch GmbH
InventorsGuenter Wolff, Ulrich Fischer, Martin Scheffel, Wilhelm Reinhardt
Life of this patent
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Abstract
A device is described for metering fuel in internal combustion engines is provided, which includes a fuel distributor provided with a flow channel and at least one discharge orifice connected thereto, a valve which is connected to the fuel distributor for metering the fuel and has a pipe connection that is able to be attached to the discharge orifice, and connection means, which connects the fuel distributor and the valve to each other in the attachment region of the pipe connection and the discharge orifice in a pressure-tight manner.
Claims9
A device for metering a fuel in an internal combustion engine, comprising:
- a fuel distributor having a flow channel and at least one upstream discharge orifice connected to the flow channel;
- at least one valve for metering the fuel, the valve being connected to the fuel distributor and including a pipe connection for attachment to the discharge orifice;
- and
- a connection arrangement, wherein:
- the connection arrangement connects the fuel distributor and the valve to each other in an attachment region of the pipe connection and the discharge orifice in a pressure-tight manner, and
- the connection arrangement includes:
- a seat surface enclosing the discharge orifice,
- a connection head formed on the pipe connection and including a head area that comes to rest on the seat surface,
- an undercut,
- a flange element that engages with the undercut and has at least one threaded hole for a clamping bolt fixed in place on the fuel distributor, and
- a receiving element fixed in place at the valve, in which the flange element lies in a keyed connection, the threaded hole being positioned correctly with respect to the clamping bolt.
Dependencies are inferred from the claim text.