US 4,294,215 AGranted

Fuel injection system

AssigneeRobert Bosch GmbH

InventorsWaldmar Hans, Rudolf Sauer, Otto Glockler, Ulrich Steinbrenner, Dieter Gunther, Manfred Lembke

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Abstract

A fuel injection system is proposed for internal combustion engines having a plurality of injection valves for supplying fuel to the engine. Each injection valve is connected by a yieldable support bracket with a rigid fuel distributor line. The bracket is mounted pivotally with an annular coller secured to the injection valve. The fuel distributor line is arranged to engage rib-like carrier members connected with the internal combustion engine and is held against the carrier member by yielding clamp elements. After the valves are engaged in the sockets of the fuel distributor line and the bore of the cylinder head, then the support brackets are swung upwardly to tension the seal elements that are disposed in proximity to the opposite ends of the valve. As a result, not only a more secure connection between the fuel distributor line and the injection valves is obtained, but also rapid assembly or disassembly of the fuel injection system.

Claims10

Dependent claims

A fuel injection system for internal combustion engines including a common fuel distributor line in which:

said common distributor line includes a plurality of apertures therein;
a plurality of sockets one each inserted in each of said apertures in said distributor line;
a plurality of injection valves each including a body portion, an input end and an output end;
said inlet end of each valve inserted into one each of said sockets;
means between said injection input end of each of said valves and said sockets for sealing against leakage of fuel;
said output end of each of said injection valves forming a nozzle element which can be sealably inserted into an appropriate opening correlated with an opening in an intake pipe of an internal combustion engine;
separate support means, each separate support means supported by said body of one each of said injection valves;
a support bracket member supported by each of said support means including a portion extending from said support means to said fuel distributor line, and
each of said bracket portions extending to said distributor line includes grasping means for grasping said distributor line;
whereby each of said injection valves are secured to said fuel distributor line in a tight leak-free condition.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/062,598Filed 31 Jul 1979
Priority: DE 29080952 Mar 1979
Granted: 13 Oct 1981
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

F02M 61/168
Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14: assembling; Disassembling; Manufacturing;…
F02D 41/3005
Controlling fuel injection: details not otherwise provided for
F02M 61/14
Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00: arrangements of injectors with respect to engines; Mounting of injectors
F02M 61/145
Arrangements of injectors with respect to engines; Mounting of injectors: the injection nozzle opening into the air intake conduit