JP3256894B2 - Refill lid for cartridge tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fuel filler cap for attaching and detaching a fuel filler cap of a cartridge tank without soiling a hand.

[0002]

2. Description of the Related Art As an oil tank of an oil combustor, an oil pan is provided at the bottom of the oil combustor instead of a large-capacity oil tank attached to the bottom of the appliance. Many have a cartridge tank which can be detached and carried. An oil filler cap with an open / close valve is attached to the oil filler port of the cartridge tank.On the other hand, a projection is provided on the oil pan to open and close the open / close valve formed on the oil filler lid. Replenishes the used amount of oil.

When the cartridge tank is emptied by the use of an oil combustor, the oil tank lid is removed from the oil tank of the cartridge tank where the oil is taken out from the frame of the oil combustor and the oil is stored in a poly tank or the like. Refuel using a siphon pump. And
The refilled cartridge tank is to be mounted on an oil stove with the fuel filler lid closed, and then used again.

[0004] Since it is the cartridge tank having a capacity of 4 to 5 liters that moves to the place where the oil is stored, it is very easy to handle, but the oil is attached to the refueling lid. In addition, the hands are stained with oil when the fuel filler cap is attached and detached during refueling. For this reason, refueling work is disliked as dirty work. Recently, an operation unit is provided at a position away from the opening / closing valve of the refueling lid, and the refueling lid is opened and closed by this operating part that is not contaminated with oil. I have. (No. 47-17392, No. 48-505)
(See No. 4)

[0005]

The oil adhering to the opening / closing valve, which is the tip of the refueling lid, easily spreads and is slightly contaminated on the operation unit slightly away.
As in the above-described conventional example, the operation portion formed on the refueling port lid is inferior in reliability unless it is considerably separated from the on-off valve. Also, if the diameter of the operation unit is increased so as to be far away, it becomes difficult to operate, and the problem of the storage location of the operation unit comes out.In the end, this structure is difficult to apply to all refueling lids, There is a high need for improvement.

[0006] On the other hand, the attachment / detachment mechanism of the fuel filler cap of this type of cartridge tank is of a screw-in type, and can be securely tightened when there is no danger of dirty hands.
If you worry about dirty hands, you can not tighten enough, and if you overturn to attach the cartridge tank to the oil combustor with insufficient tightening, the oil filler cap will come off and the oil inside will be flushed to the oil combustor at once. This may lead to an abnormal situation such as fire, and it is necessary to improve this detachable structure.

[0007]

SUMMARY OF THE INVENTION The present invention has to be able to operate the refueling palate without soiling hands to solve the above problems, Misao the outer periphery of the fuel supply palate 3 was decorated off valve 6
A working portion 7 is formed, and the oil supply port 2 of the cartridge tank 1 is
The oil cover 3 is detachably attached to the oil cover 3 by an attachment / detachment mechanism 11,
Refueling palate 3 the cartridge tank 1 by inverting mounted in the oil pan 4 and the projections 5 provided in the oil pan 4 opposition off valve 6 has been furnished to the refueling palate 3, projection of the oil pan 4
5 opens and closes the on-off valve 6 provided in the fuel filler lid 3 to open the cartridge.
Cartridge tank for supplying the oil in the cartridge tank 1 to the oil pan 4
In the tank, the diameter near the valve seat 6a of the opening / closing valve 6 of the refueling port lid 3 is smaller than the diameter of the refueling port 2 of the cartridge tank 1.
Opening and closing with the tip near the valve seat 6a of the refueling lid 3
The small-diameter part in which the valve 6 is installed and the filler port for the cartridge tank 1
2 is provided at the end of the fuel filler cap 3, a packing 9 is provided at the end of the fuel filler 2, and a horizontal part of the filler 8 is mounted on the horizontal part of the filler 8 . refueling palate 3, from part to the side of the fuel supply port 2 of the cartridge tank 1
A base inner cylinder 3a continuous from the horizontal portion of the step portion 8;
It consists of a double cylinder with the base outer cylinder 3b independent of the inner cylinder 3a
Between the inside of the base outer tube 3b and the outside of the base inner tube 3a.
Spring 1 for pressing the horizontal portion of the step 8 against the end of the oil filler 2
0 between the fuel filler lid 3 and the cartridge tank 1
The attachment / detachment mechanism 11 and the operation unit 7 of the fuel filler lid 3 are provided in the base outer cylinder 3b.
And attached to the vicinity of the valve seat 6a of the thinned fuel filler lid 3.
Oil does not spread on the outer surface of the base outer cylinder 3b connected to the operation unit 7.
That's what I did .

[0008] Further, the fuel filler lid 3 and the cartridge tank 1
Mechanism 11 between the base outer cylinder 3b and the fuel filler port 2
And the base outer cylinder 3b
Presses the pressing spring 10 between the base outer cylinder 3b and the base inner cylinder 3a.
Fitting to the locking means 12 while contracting and holding the locking position by the extension force of the pressing spring 10, when the locking means 12 cannot be sufficiently locked, the refueling port lid 3 is detached by the pressing spring 10. It is.

Further, the oil receiving tray 4 is provided with an oil flow port 4a at the periphery of the projection 5, and the oil flow port 4a is set to have a maximum dimension larger than that of the valve seat 6a formed by the step portion 8 to have a small diameter.
An oil shielding plate 13 is provided on the horizontal portion of the step 8 toward the oil circulation port 4a, and the height of the oil shielding plate 13 is higher than that of the valve seat 6a.
Since the oil shield plate 13 is set low so that the oil shielding plate 13 does not touch the oil surface, even if the oil rushes out to the oil receiving pan 4 when the cartridge tank 1 is mounted on the oil combustor, the oil splatters. Oil shielding plate 13 prevents oil from adhering to base outer cylinder 3b .

[0010]

The oil filler cap 3 of the present invention has a small diameter in the vicinity of the valve seat 6a of the on-off valve 6, so that the area of the portion where oil always adheres is reduced. The amount of adhering oil has become very small. Even if oil oozes on the surface of the step portion 8, the base inner tube 3a continuing to the horizontal portion of the step portion 8 and the base outer tube 3b constituting the operation portion 7 are formed as a double tube. Base outer cylinder 3b cut off by a gap even if oil may spread to 3a
The oil does not permeate, and the hands are not contaminated with oil by using the base outer cylinder 3b as the operation unit 7 when the fuel filler lid 3 is attached or detached.

A push spring 10 is attached to a gap between the base inner cylinder 3a and the base outer cylinder 3b. When the base outer cylinder 3b is attached to the oil supply port 2 by the attachment / detachment mechanism 11 , the push spring 10 attaches the base inner cylinder 3a. Since the horizontal portion of the step 8 is brought into close contact with the fuel filler 2 through the intermediary, if the attachment / detachment mechanism 11 between the base outer cylinder 3b and the fuel filler 2 is loosened, the fuel filler lid 3 will come off by the pressing spring 10, so that the fuel filler lid 3 is removed. Can be prevented from being improperly mounted.

Further, since the locking means 12 is provided as an embodiment of the attaching / detaching mechanism 11 in place of the conventional screwing structure, a simple operation such as pressing the fuel filler cover 3 directly against the fuel filler port 2 or pressing the fuel filler lid 3 with a slight rotation is provided. By operation, the fuel filler lid 3 can be securely attached to the fuel filler 2.

The oil flow port 4a at the periphery of the projection 5 of the oil receiving tray 4 has a larger shape than the small diameter valve seat 6a, and spreads toward the oil flow port 4a in the horizontal portion of the step portion 8. Since the oil shielding plate 13 is provided so as not to reach the oil surface , even if the oil flows out of the cartridge tank 1 to the oil receiving tray 4 due to the pressure difference , oil droplets are provided on the base outer cylinder 3b of the oil supply opening lid 3.
This does not affect the operation unit 7.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in the drawings. 1 is a cartridge tank which is mounted on an oil combustor and supplies fuel, 2 is a fuel supply port for supplying and discharging fuel to and from the cartridge tank 1, and 3 is a fuel supply port. Filling port 2 via packing 9
Detachably provided oil supply palate, the outer periphery of the fuel supply palate 3 7
The operation unit 11 is formed between the fuel filler cap 3 and the fuel filler 2.
And a detachable mechanism formed by screws. Reference numeral 4 denotes an oil pan for supplying fuel to the burner of the oil combustor, and reference numeral 14 denotes a receptacle attached to an upper opening of the oil pan 4, and the receptacle 14 has a projection 5 formed thereon.

Reference numeral 6 denotes an on-off valve provided in the fuel filler cover 3, and 6a denotes a valve seat of the on-off valve 6. The on-off valve 6 has a valve shaft 6b for closing the valve seat 6a and an end of the valve shaft 6b connected to the valve seat 6a. It has a valve spring 6c for pressing. Fill the cartridge tank 1 with the refueling lid 3
Is mounted on the receiving port 14 of the oil receiving pan 4 with the projection downward, the projection 5 pushes up the valve shaft 6b against the valve spring 6c, and the oil in the cartridge tank 1 flows into the oil receiving pan 4 via the receiving port 14. Provided for combustion. Then, when the oil level of the oil receiving tray 4 is lowered by use, air enters the cartridge tank 1 from the on-off valve 6, the oil flows out to the oil receiving tray 4, and the constant oil is kept in a state where the valve seat 6a is covered with the oil. Holding a plane.

When the cartridge tank 1 is emptied, the cartridge tank 1 is transported to a refueling place, the refueling port lid 3 is removed, and refueling is performed by a siphon pump or the like. The tip of the refueling port lid 3 is always located in the oil. Because
The hand is soiled when attaching / detaching the oil supply lid 3 wet with oil, which is very disliked. For this reason, the operation unit 7 for removal is formed so as to be largely separated from the opening / closing valve 6 of the refueling lid 3 so that even if oil spreads on the surface of the refueling lid 3, the oil does not reach the operating unit, and the hands are stained. However, in order to implement this proposal, a place for accommodating the large operation unit 7 is required, and it is hardly used in practice.

Further , if oil is attached to the operation portion 7 formed on the refueling lid 3, the hand may slip with oil when the removed refueling lid 3 is reattached, or a strong force may not be exerted due to dirt. In some cases, the fuel filler cap 3 cannot be sufficiently tightened. In this case, the fuel filler cap 3 comes off when the cartridge tank 1 is to be mounted over the oil combustor, and a large amount of oil is applied to the oil combustor, causing a fire accident. It could get up and was very dangerous.

The present invention proposes a structure that does not stain the hands when the oil is diffused and opened / closed by the attachment / detachment mechanism 11 because the oil cannot be prevented from adhering to the vicinity of the opening / closing valve 6 of the fuel filler lid 3. 8 is the cartridge tank 1
The diameter near the valve seat 6a of the fuel filler lid 3 is smaller than that of the fuel filler 2.
The step portion 8 is a small-diameter portion in which the on-off valve 6 is housed.
Horizontal part looking into the cylinder and the filler port 2 of the cartridge tank 1
And

When the cartridge tank 1 is mounted on an oil combustor and in use, only the small-diameter valve seat 6a touches the oil near the valve seat 6a. When the cartridge tank 1 is taken out, the valve seat whose diameter is reduced by the step 8 is used. Only a small amount of oil is attached near 6a. And when this little oil spreads,
It is necessary to travel along the surfaces of the small-diameter cylindrical body and the horizontal portion constituting the step portion 8.

Reference numeral 3a designates a portion extending from the horizontal portion of the step portion 8 of the fuel filler cap 3.
Base inner cylinder to continue, 3b base portion inner cylinder outside of the base inner cylinder 3a
3a, a base outer cylinder positioned so as to form a double cylinder , 10 is a pressing spring positioned in a gap between the base inner cylinder 3a and the base outer cylinder 3b, and 3c is a stopper for stopping the base inner cylinder 3a. The end portion of the pressing spring 10 is locked between the base inner tube 3a and the base outer tube 3b, and in a free state, the base inner tube 3a is in contact with the stopper 3c.

The operation unit 7 of the refueling lid 3 is a base outer cylinder 3b.
The attachment / detachment mechanism 11 is provided outside the base.
It is provided between the cylinder 3 b and the fuel filler 2. In addition, the refueling
Packing 9 interposed between mouth 2 and refueling lid 3
Between the horizontal part of the part 8 and the end of the filler port 2.
When the base outer cylinder 3b is attached to the fuel filler 2, the horizontal part of the step 8 closely contacts the end of the fuel filler 2 via the packing 9,
Further, when the base outer cylinder 3b of the fuel filler cap 3 is fitted to the fuel filler 2 by the attachment / detachment mechanism 11 while compressing the pressing spring 10,
Oil leakage does not occur between the horizontal portion of the step portion 8 strongly pressed by the pressing spring 10 and the end of the oil filler port 2.

Accordingly, the base outer cylinder 3b constituting the operation section 7
And the base inner cylinder 3a continuous from the step portion 8 can be formed as a separate member via a gap, so that oil adhering near the valve seat 6a is supplied.
When the oil is diffused to the oil lid 3, the oil is not diffused from the vicinity of the valve seat 6a of the oil filler lid 3 to the surface of the base inner cylinder 3a through the horizontal portion of the step portion 8 and to the base outer cylinder 3b having the operation portion 7. Therefore, even if the refueling lid 3 is operated with bare hands, there is no possibility that the hands become dirty with oil.

The attachment / detachment mechanism 11 for the fuel filler cap 3 of this type of cartridge tank 1 is generally such that a screw of the fuel filler cap 3 is screwed into a screw portion of the fuel filler port 2 as shown in FIGS. 1 and 2. Further, when the present invention is carried out using such an attaching / detaching mechanism 11, even if the screw portion is loosely screwed, the packing 9 and the pressing spring 10 can ensure close contact. Therefore, even if the cartridge tank 1 is moved while being loosely screwed, there may be an illusion that the oil has been securely tightened without dropping of the oil. When the shock is applied, the fuel supply lid 3 comes off suddenly and oil spills at once, which may cause a fire.

In the case of the close contact structure using the pressing spring 10 and the packing 9 as described above, there is a possibility that the fuel filler lid 3 may be moved without being sufficiently tightened, and some measures are required.
Reference numeral 12 denotes a locking means which constitutes an attaching / detaching mechanism 11 for coping with this problem, and the refueling port lid 3 and the refueling port 2 are connected by the locking means 1.
2 is used to lock with one touch.

That is, reference numeral 15 denotes a ring-shaped member, which is a locking ring firmly screwed to the root of the threaded portion of the oil filler port 2, 12a is a locking piece extending a plurality of places outward from the upper part of the locking ring 15, Reference numeral 16 denotes a locking notch formed in the base outer cylinder 3b of the fuel filler lid 3 so that a plurality of locking pieces 12a can be inserted therethrough.
The locking piece 12a inserted into the locking notch 16 is
The locking means 12 includes a locking ring 15 having a locking piece 12a and a locking notch 16 having a locking piece 12b. .

As a specific configuration, as shown in FIG. 3, the locking pieces 12a of the locking ring 15 are inclined so as to be easily released except when engaged, while the engagement pieces with which the locking pieces 12a are fitted are provided. The mating portion 12b is also inclined, and the locking piece 12a holds the engaging position by the claw portion of the engaging portion 12b.

Therefore, when the filler notch 16 is pressed and turned slightly while the locking notch 16 is fitted to the locking piece 12a of the fuel filler port 2, the locking piece 12a is fitted to the engaging part 12b and is turned by the pawl. The movement is stopped, after which it does not come off with normal force. On the other hand, since the locking piece 12a is inclined, when the pressing is stopped during the engagement with the engaging portion 12b, the locking piece 12a is released along the inclination by the force of the pressing spring 10, and There is no failure, and when the connector is at the engagement position, it is securely fitted, and since there is no possibility of an intermediate state, the reliability is increased.

Next, when the locking means 12 is removed,
And then rotate it a little in the reverse direction.
And are those outside the engagement between the locking pieces 12a, if from off fitting Yamere pressing refueling palate 3, in which outside immediately as to jump out refueling palate 3 by the force of the push spring 10 .

In the embodiment shown in FIG. 4, reference numeral 4a denotes an oil distribution port provided on the periphery of the projection 5 formed in the receptacle 14 of the oil receiving tray 4, and reference numeral 13 denotes a direction from the horizontal portion of the step 8 to the oil distribution port 4a. And an oil shielding plate that spreads in a trumpet shape.
Thus, the maximum size is set larger than the valve seat 6a formed to have a small diameter, so that the oil in the cartridge tank 1 that has entered the receiving port 14 can quickly flow out to the oil receiving tray 4. However, if there is no oil in the oil pan 4
When the ridge tank 1 is mounted on an oil combustor , a large amount of oil temporarily flows vigorously into the receiving port 14, and oil droplets may be scattered. In the present invention, the oil shielding plate 13 is provided on the horizontal portion of the step portion 8, so that the splash of oil does not reach the operation portion 7 of the base outer cylinder 6b. It could be prevented from sticking to the hand.

[0030]

As described above, according to the present invention, the area of the oil filler cap 3 which contacts the oil in the oil pan 4 is small, and
Since the base outer cylinder 3b and the oil-attached portion constituting the operation unit 7 are not continuous, oil bleeding does not propagate to the base outer cylinder 3b. It is no longer dirty, and anyone who has disliked refueling work can now be surely performed.

For this reason, in the related art, when the cartridge tank 1 is overturned with the tightening failure being neglected to securely tighten the fuel filler cover 3 with care for the dirt, a large amount of oil flows out. Although a trouble had occurred, it was not necessary to worry about dirt on the hand when attaching the fuel filler cap 3, so that the fuel filler cap 3 can be securely fixed to the fuel filler port 2 and the trouble that the fuel filler cap 3 comes off is reduced. It was done.

In addition, a step 8 is formed in order to close the refueling port 2.
The packing 9 attached to the horizontal portion formed comes into close contact with the oil filler port 2, but this force is due to the compression force of the pressing spring 10 provided in the gap between the base inner cylinder 3a and the base outer cylinder 3b. If the attachment between the base outer cylinder 3b and the oil filler 2 is loose, the oil filler cap 3 will come off due to the extension force of the pressing spring 10, and the trouble of the oil filler lid 3 coming off after the attachment can be further reduced. Things.

Furthermore, in the present invention, the outer diameter of the base outer cylinder 3b constituting the operation section 7 may be increased by the gap for interposing the pressing spring 10 with respect to the inner cylinder 3a of the base. No need to do. For this reason, the base outer cylinder 3
“b” has the same outer shape as that of the conventional art, and the shape of the oil pan 4 does not need to be largely changed in design, and can be easily applied to the existing cartridge tank 1 and oil pan 4.

On the other hand, the conventional structure in which the fuel filler cap 3 is attached to the fuel filler port 2 of the cartridge tank 1 is a screw-in type.
Although this detachable structure 11 is very simple, if the cartridge tank 1 is hit with something during the movement or the like, there is a possibility that the refueling port lid 3 may be suddenly loosened and come off unless it is securely rotated and tightened. . The present invention relates to a base outer cylinder 3b.
A locking means 12 having a hooking structure is provided as an attaching / detaching mechanism 11 between the fuel tank 2 and the oil supply port 2 and the locking means 12 is hardly disengaged by the extension force of the pressing spring 10, so that the cartridge tank 1 can be handled very roughly. There is no danger that the fuel filler lid 3 will come off.

Further, since the oil flows into the oil receiving pan 4 at the pressure drop while the internal pressure of the cartridge tank 1 is balanced to the negative pressure, when the cartridge tank 1 is mounted on the oil combustor, the oil receiving pan of a large amount of oil is temporarily stopped. 4 vigorously, oil splashes may splatter. In the present invention, since the oil shielding plate 13 is provided on the horizontal portion of the step portion 8, the oil splash does not reach the operation portion 7, and the oil can be prevented from adhering to the hand when the fuel filler cover 3 is removed.

Further, an oil shielding plate 13 is provided on the horizontal portion of the step portion 8, and the tip of the oil shielding plate 13 does not reach the oil level, so that when the cartridge tank 1 is taken out, it adheres to the vicinity of the valve seat 6a. Even if oil spreads and spreads, the oil shielding plate 13
Thus, the diffusion of oil can be prevented, and there is no possibility that the operation unit 7 provided on the base outer cylinder 3b is contaminated with oil.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a use state of a cartridge tank according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a fuel filler cap showing an embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a cartridge tank showing another embodiment of the present invention.

FIG. 4 is a sectional view showing a main part of a cartridge tank according to another embodiment of the present invention in a used state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge tank 2 Oil filler 3 Oil filler lid 3a Base inner cylinder 3b Base outer cylinder 4 Oil pan 5 Projection 6 Open / close valve 6a Valve seat 7 Operating part 8 Step part 9 Packing 10 Push spring 11 Detachment mechanism 12 Locking means 13 Oil shielding plate

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-3-230009 (JP, A) JP-A 52-153940 (JP, U) JP-A 59-138550 (JP, U) JP-A 4- 57041 (JP, U) Japanese Utility Model No. 2-133535 (JP, U) Japanese Utility Model Application No. 2-100036 (JP, U) Registered Utility Model 3006871 (JP, U) Japanese Utility Model 5-12607 (JP, Y2) Japanese Utility Model Hei 5-18585 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) F23K 5/14

Claims (3)

(57) [Claims] 1. An outer periphery of a fuel filler cap 3 in which an on-off valve 6 is provided.
An operation part 7 is formed, and the oil supply port 2 of the cartridge tank 1 is
Removable attachment to the refueling lid 3 by the attachment / detachment mechanism 11
Then, the cartridge tank 1 is turned over, and the oil filler lid 3 is mounted in the oil tray 4, and the projection 5 provided on the oil tray 4 is opposed to the opening / closing valve 6 provided in the oil filler lid 3 . The projection 5 is the fuel filler lid 3
Open and close the open / close valve 6 inside the cartridge tank 1
In the cartridge tank that supplies oil to the oil receiving tray 4, the diameter near the valve seat 6 a of the opening / closing valve 6 of the oil filler lid 3 is formed to be smaller than the oil filler port 2 of the cartridge tank 1 , and the valve seat 6 a of the oil filler lid 3 is formed. The interior near the tip and on-off valve 6
Look into the small diameter part and the end of the filler port 2 of the cartridge tank 1.
A step 8 is provided by the horizontal part of the fuel filler cap 3. A packing 9 is mounted on the horizontal part of the step part 8 of the fuel filler cap 3 so as to look at the end of the fuel filler port 2. Refueling
The refueling lid 3 reaching the side of the mouth 2 is connected from the horizontal portion of the step 8.
A base inner cylinder 3a that continues, and a base that is independent of the base inner cylinder 3a.
A double cylinder with the outer cylinder 3b, and a step between the inner side of the base outer cylinder 3b and the outer side of the base inner cylinder 3a.
A pressing spring 10 for pressing the horizontal portion of the portion 8 against the end of the fuel filler 2 is provided, and an attaching / detaching mechanism 1 between the fuel filler cover 3 and the cartridge tank 1 is provided.
1 and the operation part 7 of the fuel filler cap 3 is formed in the base outer cylinder 3b, and the oil attached to the vicinity of the valve seat 6a of the thinned fuel filler cap 3 is operated.
It does not bleed on the outer surface of the base outer cylinder 3b connected to the part 7.
Refill lid of cartridge tank to be featured. 2. The fuel tank according to claim 1, wherein the fuel supply lid is connected to the cartridge tank.
The attachment / detachment mechanism 11 is formed between the base outer cylinder 3 b and the fuel filler 2.
The base outer cylinder 3b is formed of the base outer cylinder 3b and the base inner cylinder 3a.
The compression spring 10 is compressed and fitted to the locking means 12 while being compressed,
The locking position is held by the extension force of the pressing spring.
An oil filler cap for the cartridge tank described. 3. The oil receiving tray 4 has an oil circulation port 4a at the periphery of the projection 5.
The oil flow port 4a is provided with a valve seat 6 having a small diameter formed by the step 8.
The maximum dimension is set larger than a, and an oil shielding plate 13 is provided on the horizontal portion of the step 8 toward the oil circulation port 4a, and the height of the oil shielding plate 13 is set to the valve seat 6a.
The oil shield plate 13 does not touch the oil surface
The fuel filler lid of the cartridge tank according to claim 1, wherein: