METHOD FOR PRODUCING A HOSE CONNECTOR WITH A PRESSURE GAUGE FOR A PRESSURE SENSOR

Abstract

The invention relates to a method for producing a hose connection (1) with pressure measuring point for a pressure sensor through a closed wall (3).

Claims

1. A method for producing a hose connection with pressure measuring point for a pressure sensor through a closed wall, comprising the following steps: Making a hole through the wall with the diameter of the rivet extension of a blind rivet with mandrel, Passing the blind rivet through the hole until the rivet head stops against the wall and inserting a hose with an inside diameter that matches the outside diameter of the rivet extension onto the rivet extension of the blind rivet on the opposite side of the wall, Pulling the mandrel of the blind rivet.

2. The method of claim 1, wherein after pulling the mandrel, the end part of the mandrel drills into the blind rivet in the direction of the attached hose.

Description

[0015] The invention will be depicted below using the drawings. In detail, the schematic representations are as follows:

[0016] FIG. 1 is a schematic representation of a hose connection produced by the method according to the invention,

[0017] FIG. 2 is a view of the head of the blind rivet in the air-flow area of the inlet nozzle,

[0018] FIGS. 3 to 8 represent the individual steps of the process, and

[0019] FIG. 9 a schematic representation of a hose connection produced by the process according to the invention with pressure measuring point during operation.

[0020] The same reference numerals in the figures designate the same or equivalent elements.

[0021] FIG. 1 is a schematic representation of a hose connection 1 produced in the wall 3 of the inlet nozzle according to the invention shown. FIG. 2 schematically shows the top view of the rivet head 8. The arrangement builds up the pressure measuring point.

[0022] The area of the rivet extension 5, which is thickened by the pull of the mandrel of the blind rivet, clamps the previously plugged-on area of the tube 9 securely and firmly.

[0023] The rivet head 8 of the blind rivet is located in the air-flow area of the inlet nozzle. The air duct 12 through the blind rivet head forms a connection to the hose 9. The pressure sensor can be connected to said hose (not shown).

[0024] FIGS. 3 to 8 show the process according to the invention in individual steps.

[0025] FIG. 3 shows the wall 3 to be penetrated for the sensor/hose connection.

[0026] FIG. 4 shows the production of a hole 4 through the wall 3 with the diameter of the rivet extension 5 of a blind rivet 6 with mandrel 7, illustrated by the arrow.

[0027] FIG. 5 shows the insertion of the blind rivet 6 through the hole 4 until it stopssee also FIG. 6of the rivet head 8 on the wall 3 and attaching a tube 9 having an inner diameter of the outer diameter of the blind rivet extension 5 corresponds to the blind rivet extension 5 of the blind rivet 6 on the opposite side of the wall 3.

[0028] FIG. 7 shows the pulling of the mandrel 7 of the blind rivet 6 in the direction of the arrow, by tearing off the end part 10 of the mandrel 7. The pulling can be done with a normal blind rivet. The blind rivet extension 5 can expand in the region of the attached hose 9. The termination part 10 of the blind rivet may optionally remain in the widened region of the rivet after tearing off the mandrel 7 and must then be removed therefrom.

[0029] Finally, as shown in FIG. 8, only the end part 10 of the mandrel 7 drills into the blind rivet 6 in the direction of the attached hose 9. For this, e.g. also the mandrel 7 previously torn off with the help of the rivet plunger can be used together with light hammer blows.

[0030] After removal of the end part 10 from the hose 9, the hose connection is completed by the wall 3 of the inlet nozzle for a pressure sensor. After completion of the work, the rivet head 8 aerodynamically protruding remains in the air-flow area. The attached hose 9 holds without glue or other attachment measures.

[0031] FIG. 9 shows the hose connection 1 with rivet head 8 during operation for measuring an air flow 11 through the air duct 12 and the hose 9.

LIST OF REFERENCE SIGNS

[0032] 1 Hose connection [0033] 2 Pressure measuring point [0034] 3 Wall [0035] 4 Hole [0036] 5 Rivet extension [0037] 6 Blind rivet [0038] 7 Mandrel [0039] 8 Rivet head [0040] 9 Hose [0041] 10 End part [0042] 11 Air flow [0043] 12 Air channel