JPS6030415Y2 - Air pump using exhaust gas - Google Patents

Description

[Detailed Description of the Invention] This invention relates to (1) an air pump that uses exhaust gas to fill air sacs such as rubber boats with exhaust gas from automobiles;

Traditionally, primitive foot-type air pumps and electric air pumps have been used to fill air sacs such as portable rubber boats, but in recent years rubber boats have also become larger, and the former Foot pumps inevitably require considerable labor and time, and the latter electric pumps have drawbacks such as being expensive and not suitable for general use.

Therefore, recently, air pumps that use car exhaust gas have been attracting attention, but since car exhaust gas is high temperature, it is difficult to introduce the exhaust gas, and the hot air can deform the air sac. In addition, there were problems such as the air sac being contaminated by charcoal, oil smoke, fire, etc. mixed in the exhaust gas, which was a major obstacle to its realization.

The object of this invention is to provide an air pump that utilizes exhaust gas as described below, which solves the above-mentioned drawbacks and problems and meets the conventional demands.

To explain the inflator using exhaust gas according to this invention with reference to the drawings and embodiments, reference numeral 1 denotes an inlet fitting in which a conical cap-shaped flange piece 1b extending rearward is integrally provided on the outer periphery of the tip opening of the conduit 1a. Several springs 3, 3' are disposed with one end attached to each of several spring holes 2, 2' drilled at appropriate intervals on the outer peripheral edge of the collar piece 1b.

Reference numeral 5 denotes a fixing band having several hooks 4, 4' corresponding to the springs 3, 3', and is detachably fixed at a suitable position near the end of the exhaust pipe 6 of the automobile.

By hooking the other ends of the several springs 3, 3' onto the corresponding several hooking claws 4, 4', the inlet fitting 1 is constructed such that its collar piece 1b partially connects to the exhaust pipe 6. It passes into the interior from the pipe end and is installed in close contact with the pipe end of the exhaust pipe 6 with appropriate pressure by means of several springs 3, 3'.

In this case, if some excess exhaust gas is discharged through the exhaust pipe 6 or if a large amount of exhaust gas suddenly occurs due to a mistake or a mistake explosion, the pressure will cause the connection between the inlet fitting 1 and the exhaust pipe 6. A gap is created between them depending on the pressure, and unnecessary exhaust gas is discharged to the outside, and the pressure is adjusted to an appropriate tightness so that only an appropriate amount of exhaust gas flows into the conduit 1a of the inlet fitting 1. .

That is, by changing the mounting position of the exhaust pipe 6 of the fixing band 5, the operating spring pressure of the springs 3, 3' can be varied, and the above-mentioned contact pressure can be adjusted.

As shown in FIG. 4, 7 is a filter in which a filter material 15 such as sponge or activated carbon is housed in a container having an upper outlet 11 with upper and lower perforated plates 8.9 interposed therebetween.

10 is a cooling tank in which the cooling water 13 is housed in the lower part and the filter 7 is housed in the upper part.

Note that the filter 7 is inserted from the top of the cooling tank 10.

The inlet fitting 1 is communicated with the lower part of the cooling tank 10 by a heat-resistant hose 14 having one end connected to the conduit 1a.

Further, the base end of a gas injection hose 12 having an injection port at its tip is connected to the upper outlet 11 of the filter 7.

This device has a construction that is based on Narukami's structure, and when a portion of excess exhaust gas is discharged through the exhaust pipe 6 when the engine is rotated, or when a large amount of exhaust gas suddenly occurs due to an accidental explosion, the exhaust gas is introduced at that pressure. A gap is created between the fitting 1 and the exhaust pipe 6 depending on the pressure, and unnecessary exhaust gas is released to the outside, and only an appropriate amount of exhaust gas is passed from the conduit 1a of the inlet fitting 1 to the heat-resistant hose 14.
The exhaust gas is introduced into the cooling tank 10, where it is cooled by the internal cooling water 13, and impurities such as oil and carbide in the exhaust gas are removed.

Furthermore, the dust and dirt that have flown into the cooling tank 10 are removed by a filter 7, and the filtered and purified exhaust gas is sent out at an appropriate pressure through a gas injection hose 12. By inserting the inlet into the air inlet of an air sac such as a rubber boat, the air sac can be filled with cooled and purified air.

The inflator using exhaust gas of this invention seems to have been developed, and the inlet fitting 1, which has a conical cap-shaped flange piece 1b extending rearward on the outer periphery of the tip opening of the conduit 1a, is connected to the exhaust pipe of an automobile. 6, the inlet fitting 1 is installed in close contact with the end of the pipe by several springs 3, 3' with appropriate pressure.
serves as both a pressure control valve and a flow rate control valve, and stably guides only an appropriate amount of a portion of the exhaust gas from the exhaust pipe 6 to the cooling tank 10 to perform safe and appropriate air injection. In addition, by appropriately adjusting the contact pressure of the inlet fitting 1 to the end of the exhaust pipe 6 by the springs 3 and 3', the exhaust gas discharged from the exhaust pipe 6 can be prevented from suddenly becoming excessively large due to a mistaken explosion, etc. Even if this occurs, it can react quickly and release excess exhaust gas to the outside, and has outstanding effects such as being able to always provide stable and safe operation.

Further, the exhaust gas introduced into the cooling tank 10 at the required pressure and flow rate is cooled by the cooling water 13, and impurities such as oil and carbide in the exhaust gas are removed.
This removes the dust and dirt that would have been blown away by the pump, and allows for safe and easy inflation of rubber boats and other air sacs without damaging or staining them with the cooled, filtered and purified exhaust gas. It has great effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the inflator using exhaust gas according to this invention, in which Fig. 1 is a front view of the inlet fitting, Fig. 2 is a side view with part of the same as the above cut away, and Fig. 3 is the same as the above. A side view of the fixing band fixed to the exhaust pipe for installation, Figure 4 is a vertical cross-sectional view of the filter, Figure 5 is a plan view of the perforated plate that supports the filter material, and Figure 6 is the air pump of this invention. It is a side view with a part cut away. 1... Inlet fitting, 1a... Conduit, 1
b...Brim piece, 2, 2'...Spring hole, 3,3'...Spring, 4,4'...
...Hooking claw, 5...Fixing band, 6...
... Exhaust pipe, 7 ... Filter, End ... Upper perforated plate, 9 ... Lower perforated plate, 10 ... Cooling tank, 11 ... ...Upper outlet, 12...
...Gas injection hose, 13...Cooling water, 14.
...Heat-resistant hose, 15...Filtering material.

Claims (1)

[Scope of utility model registration request] An inlet fitting 1, in which a conical cap-shaped collar piece 1b extending rearward is integrally provided on the outer periphery of the tip opening of a conduit 1a, is attached to the end of an automobile exhaust pipe 6 using several springs 3, 3'. A cooling tank 1 is installed in close contact with each other under an appropriate pressure as possible, and has a cooling water 13 in the lower part and a filter 7 in the upper part.
The air inlet for utilizing exhaust gas is constructed by connecting the inlet fitting 1 to the lower part of the filter 7 with a heat-resistant hose 14, and connecting the upper outlet 11 of the filter 7 to a gas injection hose 12 having an inlet at its tip.