Cold starting installation for internal combustion engines

Claim 2

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity which is operable to inject a predetermined fuel quantity into the suction pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, characterized in that the discharge ends of the injection lines are constructed conically and extend in the interior space of a respective nozzle means which is constructed pot-shaped and rests on a shoulder of the stepped bore means, and characterized in that the nozzle means is retained in its position by the discharge end of the corresponding injection line.

Claim 3

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity, which is operable to inject a predetermined fuel quantity into the section pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, and characterized in that the discharge ends of the injection lines are constructed cylindrically and are provided with a radial recess into which is inserted a disk-shaped nozzle means.

Claim 4

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity, which is operable to inject a predetermined fuel quantity into the section pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, and characterized in that the discharge ends of the injection lines are constructed cylindrically and are provided with a radial recess into which is inserted a disk-shaped nozzle means.

Claim 5

A cold-starting installation according to claim 2, characterized in that the stepped bore means is formed by diameters of different sizes.

Claim 6

A cold-starting installation for internal combustion engines, according to claim 2, characterized in that the engine is a multi-cylinder internal combustion engine for motor vehiCles which includes a separate suction pipe means for each cylinder equipped with its own carburetor.

Claim 7

A cold-starting installation according to claim 2, characterized in that the disk-shaped nozzle means is held in position by the clamping force of the material of the injection line.

Claim 8

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity, which is operable to inject a predetermined fuel quantity into the suction pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, characterized in that the injection lines consist of synthetic resinous material and are held in the suction pipe means also consisting of synthetic resinous material by spring clamp means, the suction pipe means including integrally formed boss means for the fastening thereon of actuating linkage means for carburetor means of the internal combustion engine, characterized in that the spring clamp means are arranged laterally at the suction pipe means within the area of the stepped bore and abut with a free end thereof respectively against the injection line coordinated to the suction pipe means, characterized in that the nozzle means consists of a material selected from the group consisting of sheet metal, polyamide and polyfluorol-olefines, and characterized in that the nozzle means is retained in its position by the discharge end of the corresponding injection line.

Claim 9

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity, which is operable to inject a predetermined fuel quantity into the suction pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, characterized in that the injection lines consist of synthetic resinous material and are held in the suction pipe means also consisting of synthetic resinous material by spring clamp means, the suction pipe means including integrally formed boss means for the fastening thereon of actuating linkage means for carburetor means of the internal combustion engine, characterized in that the spring clamp means are arranged laterally at the suction pipe means within the area of the stepped bore and abut with a free end thereof respectively against the injection line coordinated to the suction pipe means, characterized in that the nozzle means consists of a material selected from the group consisting of sheet metal, polyamide and polyfluorol-olefines, and characterized in that the nozzle means is retained in its position by the discharge end of the corresponding injection line.

Claim 10

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity, which is operable to inject a predetermined fuel quantity into the suction pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, characterized in that the injection lines consist of synthetic resinous material and are held in the suction pipe means also consisting of synthetic resinous material by spring clamp means, the suction pipe means including integrally formed boss means for the fastening thereon of actuating linkage means for carburetor means of the internal combustion engine, characterized in that the spring clamp means are arranged laterally at the suction pipe means within the area of the stepped bore and abut with a free end thereof respectively against the injection line coordinated to the suction pipe means, and characterized in that the discharge ends of the injection lines are constructed cylindrically and are provided with a radial recess into which is inserted a disk-shaped nozzle means.

Claim 11

A cold-starting installation for internal combustion engines with suction pipe means, which includes individual injection lines connected with a fuel line and an electrically controlled cold-starting valve means for the control of the fuel injection quantity, which is operable to inject a predetermined fuel quantity into the suction pipe means of the internal combustion engine during the starting of the internal combustion engine by way of the injection lines, characterized in that a stepped bore means is provided laterally at the suction pipe means of the internal combustion engine for the accommodation of a respective injection line, the discharge ends of the injection lines provided with nozzle means being inserted into the stepped bore means and being retained therein, characterized in that the injection lines consist of synthetic resinous material and are held in the suction pipe means also consisting of synthetic resinous material by spring clamp means, the suction pipe means including integrally formed boss means for the fastening thereon of actuating linkage means for carburetor means of the internal combustion engine, characterized in that the spring clamp means are arranged laterally at the suction pipe means within the area of the stepped bore and abut with a free end thereof respectively against the injection line coordinated to the suction pipe means, and characterized in that the discharge ends of the injection lines are constructed cylindrically and are provided with a radial recess into which is inserted a disk-shaped nozzle means.

Claim 12

A cold-starting installation according to claim 7, characterized in that the disk-shaped nozzle means is held in position by the clamping force of the material of the injection line.

Claim 13

A fuel injection system for internal combustion engines, comprising an individual carburator and suction pipe means for each cylinder of the internal combustion engine, each said suction pipe means having a stepped bore means laterally of the suction pipe means; a fuel line extending from a fuel pump to a first set of injection fuel lines, each line of said first set connected to one of said individual carburators; an electrically controlled cold-starting valve means further connected to said fuel line for controlling the injection of a predetermined fuel quantity into the suction pipe means during the starting of the internal combustion engine; a second set of injection fuel lines, each line of said second set extending from said cold-starting valve means to one of said individual suction pipe means and having a discharge end, each said discharge end of said second set of injection fuel lines being inserted into said stepped-bore means of corresponding suction pipe means; and nozzle means provided at the discharge ends of said second set of injection fuel lines in said stepped bores, wherein the discharge ends of the second set of injection lines are conical and wherein each respective nozzle means is pot-shaped and abuts on a shoulder of the stepped bore means, said conical discharge ends extending into the interior of a respective pot-shaped nozzle means, and said each respective nozzle means being retained in its position by the discharge end of the corresponding injection line.

Claim 14

A fuel injection system for internal combustion engines, comprising an individual carburator and suction pipe means for each cylinder of the internal combustion engine, each said suction pipe means having a stepped bore means laterally of the suction pipe means; a fuel line extending from a fuel pump to a first set of injection fuel lines, each line of said first set connected to one of said individual carburators; an electrically controlled cold-starting valve means further connected to said fuel line for controlling the injection of a predetermined fuel quantity into the suction pipe means during the starting of the internal combustion engine; a second set of injection fuel lines, each line of said second set extending from said cold-starting valve means to one of said individual suction pipe means and having a discharge end, each said discharge end of said second set of injection fuel lines being inserted into said stepped-bore means of corresponding suction pipe means; and nozzle means provided at the discharge ends of said second set of injection fuel lines in said stepped bores, wherein the discharge ends of the second set of injection lines are conical and wherein each respective nozzle means is pot-shaped and abuts on a shoulder of the stepped bore means, said conical discharge ends extending into the interior of a respective pot-shaped nozzle means, and said each respective nozzle means being retained in its position by the discharge end of the corresponding injection line.

Claim 15

A fuel system according to claim 9, wherein spring clamp means are arranged laterally at the suction pipe means within the area of the stepped bore and abut with a free end of said spring clamp means, respectively, against the injection line of said second set, coordinated to the suction pipe means.

Claim 16

A fuel injection system for internal combustion engines, comprising an individual carburator and suction pipe means for each cylinder of the internal combustion engine, each said suction pipe means having a stepped bore means laterally of the suction pipe means; a fuel line extending from a fuel pump to a first set of injection fuel lines, each line of said first set connected to one of said individual carburators; an electrically controlled cold-starting valve means further connected to said fuel line for controlling the injection of a predetermined fuel quantity into the suction pipe means during the starting of the internal combustion engine; a second set of injection fuel lines, each line of said second set extending from said cold-starting valve means to one of said individual suction pipe means and having a discharge end, each said discharge end of said second set of injection fuel lines being inserted into said stepped-bore means of corresponding suction pipe means, said discharge ends of the second set of injection lines being cylindrical and being provided with a radial recess; and nozzle means provided at the discharge ends of said second set of injection fuel lines in said stepped bores, each respective nozzle means being disk-shaped and being inserted into the radial recess of each discharge end.

Claim 17

A fuel injection system for internal combustion engines, comprising an individual carburator and suction pipe means for each cylinder of the internal combustion engine, each said suction pipe means having a stepped bore means laterally of the suction pipe means; a fuel line extending from a fuel pump to a first set of injection fuel lines, each line of said first set connected to one of said individual carburators; an electrically controlled cold-starting valve means further connected to said fuel line for controlling the injection of a predetermined fuel quantity into the suction pipe means during the starting of the internal combustion engine; a second set of injection fuel lines, each line of said second set extending from said cold-starting valve means to one of said individual suction pipe means and having a discharge end, each said discharge end of said second set of injection fuel lines being inserted into said stepped-bore means of corresponding suction pipe means, said discharge ends of the second set of injection lines being cylindrical and being provided with a radial recess; and nozzle means provided at the discharge ends of said second set of injection fuel lines in said stepped bores, each respective nozzle means being disk-shaped and being inserted into the radial recess of each discharge end.

Claim 18

A fuel system according to claim 11, wherein the disk-shaped nozzle means is held in position by the clamping force of the material of the injection line.