CN1965192A

CN1965192A - Connection adapter for gas cartridge and air inlet device of gas fastening equipment, cartridge with the adapter, solenoid valve and device

Info

Publication number: CN1965192A
Application number: CNA2005800158902A
Authority: CN
Inventors: 布鲁诺·图卢兹; 帕特里克·埃勒利耶; 弗雷德里克·奈拉克
Original assignee: Societe de Prospection et dInventions Techniques SPIT SAS
Current assignee: Societe de Prospection et dInventions Techniques SPIT SAS
Priority date: 2004-05-25
Filing date: 2005-05-24
Publication date: 2007-05-16
Anticipated expiration: 2025-05-24
Also published as: FR2870920B1; FR2870920A1; CN100455869C

Abstract

An adapter for receiving an output end (23) of a cartridge (20) and an input end (32) of an air inlet device (30), and a seal (11) between the two ends (23, 32). The seal (11) comprises an annular transverse portion (53) intended to be interposed between the two ends (23, 32) and the material of the seal (11) is chosen from compressible and elastic materials.

Description

The gas cartridge of gas fastening apparatus and the connection adaptor of air inlet system, tube, solenoid valve and equipment with this ABAP Adapter

The present invention relates to a kind of gas fastening apparatus, be contained in the interior gas of tube injects internal-combustion engine by the air inlet system that is intended to solenoid valve firing chamber.

The present invention relates more particularly to the installation of the solenoid valve on the gas cartridge.

EP98402916.5 and EP01402614.0 provide the installation of the solenoid valve on the tube that utilizes ABAP Adapter.This adapter design becomes the structure at the two ends of accommodation tube and solenoid valve, produces sealing between the two in order to make gas carry and make to solenoid valve from tube, must exert pressure to both.

Under the situation of any configuration in two files mentioned above, may produce two class problems.

Sealing may be expanded and be blocked at the output terminal of tube.In this case, if just be not removed when tube is also empty, gas will spill so.Be noted that when tube is not sky because the temporary transient leakage of gas, tube is very easy from its shell ejection gas so pull down tube.

But when tube was sky, it may be difficult catching its bottom and it is pulled down from its shell.

Make solenoid valve be suitable for gas cartridge, also will comprise numerous parts.Even the size of each part in these parts all meets high tolerance limit, do as a wholely, also can produce installation question.Therefore, if on the tube ABAP Adapter, be provided for holding the annular recess of locking device, as the EP01402614.0 instruction, under the situation in tube is not installed in its shell, the correct installation of the tube in its shell can become impossible in the ABAP Adapter locking so.

On the contrary, tube may be placed in its shell, but because impact stroke is insufficient, and gas spills to such an extent as to these a series of sizes are ends of so fully sliding cylinder is impossible.

The objective of the invention is to address these problems.

Therefore, the present invention relates to a kind of connection adaptor, be used to be installed in the gas cartridge and the air inlet system of gas fastening apparatus, be used for the output terminal of accommodation tube and the input end of air inlet system on the one hand, be used to hold the sealing between these two ends on the other hand, it is characterized in that sealing comprises the ring-type lateral part that is used to be inserted between these two ends, the material of sealing is selected from compressible and elastic material.

Will be when its shell be pulled down when tube, even it is empty, the restoring force of the material of the lateral part of sealing produces launching of tube.In any case, no matter it is compressible or flexible material, the properties of materials of sealing makes it tube is installed on the equipment free size error, and guarantees the impact stroke of the output terminal of tube, therefore guarantees that gas is from the conveying of tube to the air inlet system of fastening apparatus.

Expanded polystyrene is possible compressible material.Tartan is unusual suitable elastic materials.

Form obstruction and make the end of tube remain on exhaust position in order to prevent to be out of shape the sealing in ABAP Adapter that causes, in the preferred embodiment of ABAP Adapter of the present invention, sealing is placed in the sleeve of rigid material, to keep the shape of sealing, preferably movably is installed in the ABAP Adapter.

Certainly, the application also relates to any gas fastening apparatus that is provided with this ABAP Adapter, and any is provided with the air inlet system of the gas fastening apparatus of this ABAP Adapter.

With reference to accompanying drawing, will be more readily understood the present invention by means of following component description, this assembly comprises solenoid valve and the gas cartridge with this bright ABAP Adapter, wherein:

Fig. 1 is the view of solenoid valve and tube, and this disposes the ABAP Adapter of representing with axial section that is installed on before the solenoid valve;

Fig. 2 is the view that is similar to Fig. 1, is in the process that is installed on the solenoid valve; With

Fig. 3 is the view that is similar to Fig. 1 and Fig. 2, on being installed on solenoid valve after.

A kind of fastening apparatus of fastening piece has the piston by compressed gas-driven, comprises internal-combustion engine, and this internal-combustion engine comprises the firing chamber, and this firing chamber is supplied to the piston that is used to drive fastening piece from the pressurized gas of gas cartridge 20 with driving.

In the specific examples of describing, connection adaptor is used to connect solenoid valve 30 and the compressed gas cylinder 20 that allows pressurized gas to enter the firing chamber of fastening apparatus.

Common columniform tube 20 is provided with liquid pressurized gas in inner casing, and is provided with propellant agent between inner casing and shell.Ring edge 21 forms the extending portion of the outer cylindrical wall of tube 20 at an end of tube.The base 24 that protrusion output terminal 23 utilization that is connected in inner casing is seated on the center of circle of being described at edge 21 stretches out from tube.

Common columniform solenoid valve 30 one ends are provided with input end 32, and this input end is connected in the output terminal (not shown) that stretches out from the head 37 of the solenoid valve the other end in the inside of this solenoid valve.

In this example, input end 32 is protruding ends.

ABAP Adapter 1 is a sealing seat, is used for the protrusion output terminal 23 of accommodation tube 20 and the protrusion input end 32 of solenoid valve 30.The ABAP Adapter 1 that is made into integration by plastics comprises planar support bottom 2 and sleeve 19, support base is a ring-type in this example, hold sealing 11 chamber 3 with support, this sleeve is at its both ends open, and extends perpendicular to support base 2 along axis 15 in the latter's a side.The free end edge 4 of chamber 3 is folded up to the right angle, inside of chamber 3, and the opening of the passage of the input end 32 of formation solenoid valve 30, and this opening has the cross section that equates with the cross section of end 32 substantially.

The one end is connected in support base 2 and this example that the parallel plane perpendicular to support base 2 extends in the upper edge, opposite flank of chamber 3 with respect to the fastening supporting

leg

5,6 of axial plane symmetry.The spacing of supporting

leg

5,6 equals the internal diameter at the edge 21 of propellant bottle 20 substantially.And each supporting

leg

5,6 is provided with the lug boss that cooperates with the inwall at edge 21 at its free end.

The chamber 3 of ABAP Adapter 14 places that keep to the side in its outside are provided with a plurality of sloping platforms 58, near support base 2 places a plurality of fins 34 are set.Sloping platform 58 and fin 34 form the loop hook groove 40 that sacrificial vessel has the locking framework of

hook

41,42 to use between them, as file EP01402614.0 instructs.

Sealing 11 has the common tubulose that two ends have sealing lip 51,52.It comprises that forming passage 54 also forms the ring-type lateral part of sealing H profile shaft to the cross section.In this example, sealing 11 is made by more resilient tartan.

Sealing 11 is installed in the inside of rigid sleeve 19.It also is a tubular member, and the annular internal that its side at tube 20 is provided with for sealing 11 usefulness keeps flange 55.The external diameter of sleeve 19 equals the internal diameter of the chamber 3 of ABAP Adapter substantially.Its internal diameter equals to seal 11 external diameter substantially.The inside axial length of sleeve 19 between its edge 56 and its flange 55 equals to seal 11 axial length substantially.Its outside axial length is less than the axial length of chamber 13, so that it can freely slide into the inside of chamber.

Connection between the output terminal of the input end 32 of solenoid valve 30 and gas cartridge 20 will be described now.

For ABAP Adapter being installed on the tube 20, fastening supporting

leg

5,6 is inserted into the edge 21 of tube 20.The lug boss of supporting

leg

5,6 is hooked and is clipped on the inwall at edge 21.

When ABAP Adapter is fixed in tube 20 the time, the output terminal 23 of tube 20 is imported in the lateral part sealing 11 of a side of 53 by the flange 55 of the knuckle of sleeve 19.

Then, ABAP Adapter 1 guides the protrusion input end 32 that skips over solenoid valve by edge 4, and this end cooperates with the sealing 11 of the opposite side of lateral part 53.

At last, ABAP Adapter 1 is installed on tube 20 and the solenoid valve 30 by the relative translation campaign of three elements.

When ABAP Adapter cooperates with the input end 32 of solenoid valve 30, sloping platform 58 is through

locking hook

41,42, no matter permissible error, this locking hook is placed in the groove 40, because the latter can be compensated by the elastic reaction that seals 11 lateral part 53, this lateral part is owing to its elasticity is compressed, as shown in Figure 3.In case the sloping platform 58 of ABAP Adapter has passed

locking hook

41,42, two

ends

23,32 just accurately cooperate at the discharging and the input position that seal the formula that pushes back in 11, lean against on the lateral part 53, the edge 4 of the chamber 3 of ABAP Adapter is engaged on the bottom sleeves 57 of the input end 32 with enlarged.

In case when tube 20 had been used also empty, the restoring force of the lateral part 53 of sealing 11 impelled its shell from device to unload.

For some reason, if wish before the tube sky, it to be unloaded from its shell,, utilize sleeve 19 sealings 11 to be retained in the ABAP Adapter, and output terminal 23 will recover its installation closed position before though the sealing force of

sealing lip

51,52 is very big;

Sealing 11 is installed within the sleeve 19.It is installed in the there may merit attention with the device that forms one.One is fixed in another can be by bonding, welding, ultrasound, biomaterial injection, realizations such as cast.

Claims

1. A connection adapter for mounting on a gas cartridge (20) and an air inlet device (30) of a gas fastening device, on the one hand for accommodating the output end (23) of the cartridge (20) and the air inlet The input end (32) of the device (30), and on the other hand, is used to accommodate the seal (11) between the two ends (23, 32), characterized in that the seal (11) includes a An annular transverse portion (53) between the ends (23, 32), and the material of the seal (11) is selected from compressible and elastic materials.

2. Adapter according to claim 1, wherein the seal (11) is placed in a sleeve (19) of rigid material to maintain the shape of the seal (11).

3. Adapter according to claim 2, wherein the sleeve (19) is movably mounted in the adapter.

4. Adapter according to any one of claims 2 and 3, wherein the sleeve (19) comprises a retaining flange (55) for the sealing (11).

5. Adapter according to any one of claims 1 to 4, wherein the seal (11) has an H-shaped section.

6. Adapter according to any one of claims 1 to 5, comprising a chamber (3) on the outside of which is provided a locking ramp (58).

7. Adapter according to claim 6, wherein the chamber (3) of the adapter is provided on its exterior with a rib (34) which together with the ramp (32) forms a locking means for accommodating the fastening device (41, 42) annular groove (40).

8. Adapter according to any one of claims 2 to 7, wherein the seal (11) and the sleeve (19) form an integral unit.

9. A gas cartridge for a gas fastening device, characterized in that it is equipped with an adapter according to one of claims 1 to 8.

10. A solenoid valve allowing the entry of piston propellant to drive the fastener of a gas fastening device, characterized in that it is equipped with an adapter as claimed in any one of claims 1 to 8.

11. A gas fastening device comprising a solenoid valve (30) for allowing piston gas to enter the combustion chamber of an internal combustion engine to drive a fastener, and a gas cartridge for feeding the solenoid valve (30) ) to provide gas, characterized in that the solenoid valve (30) and the cylinder (20) are connected through an adapter as claimed in one of claims 1 to 8.