JP2003042436A - Oil-feeder of liquid-fuel burning appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in a conventional pan that extension of a filter area is impossible, because the filter is provided on the bottom of the pan, further in the conventional pan having an annularly projected wall, the area can not be enlarged in case of integral formation of the filter with the pan. SOLUTION: The oil feeder comprises a cartridge tank 1 holding the liquid fuel 2 and a pan 11 having a push-up pin 11a for push-operating a valve plug 8 attached to a filler cap 4. the pan 11 is divided into two parts of an oil-pan part 14 of a bottom cylindrical shape having a push-up pin 11a in its center and an annularly projecting wall 11c for preventing creeping of fuel. A meshed or porous filter 11b is integrally provided to the side face of the oil-pan part 14 or on both the side face and the bottom.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply device for a liquid fuel combustion device such as an oil stove and an oil fan heater using a cartridge tank.

[0002]

2. Description of the Related Art FIG. 5 is a cross-sectional view of an essential part of a conventional fuel supply device for a liquid fuel combustion apparatus, and FIG.

In FIGS. 5 and 6, 1 is a cartridge tank, 2 is a liquid fuel such as kerosene accommodated in the cartridge tank 1, and 3 is an oil supply port joined and fixed to one end of the cartridge tank 1. The screw part 3 is provided on the filler port 3.
a is formed, and the filler cap 4 having a screw portion 4c screwed to the screw portion 3a is attached. A rubber packing 6 is interposed and sealed between the fuel filler port 3 and the fuel filler cap 4.

The oil filler cap 4 includes a valve body 8 having an O-ring 9 fitted at its tip, a coil spring 10 for pressing the valve body 8 in the closing direction, and a valve holding cylinder 7 for holding the valve body 8 and the coil spring 10. A grip portion 5 made of synthetic resin integrally formed by, for example, insert molding so as to sandwich a cap portion 4a made of a metal member having a valve device configured from and a flange 4d formed at the end portion of the cap 4a. It consists of and.

Reference numeral 11 denotes a tray installed between the cartridge tank 1 and the auxiliary tank 12, and has a bottomed cylindrical oil receiving portion 14 having a push-up pin 11a and a filter 11b mounted on the bottom surface. Further, the mounting support portion 15 formed by step drawing has an annular convex wall 11c for preventing fuel from wrapping around. The top surface 11 of this annular convex wall 11c
d is a curved surface, and when the cartridge tank 1 is installed in the main body of the combustion device (not shown), its top surface 1
1d is formed so as to reach the vicinity where it does not contact the tip 5a of the grip portion 5 of the filler cap 4. Reference numeral 13 is a tank guide plate provided outside the cartridge tank 1 provided in the main body of the combustion apparatus.

Next, the operation of the above conventional device will be described. As shown in FIG. 5, when the cartridge tank 1 containing the liquid fuel 2 is attached to the main body of the combustion device with the fuel filler port 3 facing downward, the cartridge tank 1 is guided by the tank guide plate 13 and the cap of the fuel filler cap 4 is inserted. When the portion 4a reaches the top surface 11d of the annular convex wall 11c of the saucer 11 therebelow, the position is adjusted so as to be guided to the center by the curved shape of the top surface 11d, and the outer periphery of the cap portion 4a is annular. The valve body 8 of the filler cap 4 and the push-up pin 11 of the tray 11 are in contact with the inner wall 11e of the convex wall 11c.
It is guided to the position where a matches exactly. The auxiliary tank 1
The valve body 8 of the cap portion 4a of the filler cap 4 is pushed inward together with the O-ring 9 by the push-up pin 11a of the pan 11 arranged on the upper side of the tray 11, the outlet port 4b is opened, and the airtight state of the cartridge tank 1 is maintained. When broken, the liquid fuel 2 starts to flow out. While the liquid fuel 2 in the cartridge tank 1 is exchanged with the outside air, the liquid fuel 2 in the cartridge tank 1 flows out to the tray 11, and the filter 1 of the tray 11
After passing through 1b, the liquid is supplied into the auxiliary tank 12, and the liquid level 2a in the auxiliary tank 12 rises.

Due to the rise of the liquid level 2a, the filler cap 4
When the liquid surface 2a covers the tip of the cap portion 4a of the above, that is, when the outside air does not enter the cartridge tank 1,
The outflow of the liquid fuel 2 is stopped and kept in that state. The liquid fuel in the auxiliary tank 12 is sent to the combustor (not shown) by the fuel pumping pump (not shown) provided in the auxiliary tank 12, and when the liquid level 2a in the auxiliary tank 12 drops, , Liquid fuel 2 in cartridge tank 1
Flows out into the auxiliary tank 12, and the liquid level 2a rises. When the user uses the combustion apparatus main body for a certain period of time, the filter 11b of the tray 11 is clogged, so that the user needs to clean the filter 11b regularly. The finer the eyes of the filter 11b, the more frequently the cleaning is performed. If the eyes of the filter 11b are rough, dust easily flows into the main body of the combustion apparatus, which hinders the operation of the main body of the combustion apparatus. Further, conventionally, the filter 11b
Since it is on the bottom surface of the tray 11, the filter area could not be increased.

Further, for example, when there is a large amount of liquid fuel 2 in the cartridge tank 1, the initial amount of fuel protruding from the cartridge tank 1 when the cartridge tank 1 is set in the main body is very large. If clogged, the fuel will overflow in the pan 11,
There has been a problem that the fuel flows over the top surface 11d of the annular convex wall 11c for preventing the fuel from wrapping around, the fuel flows out of the annular convex wall 11c, and the grip portion 5 of the filler cap 4 is exposed to the fuel.

[0009]

As described above, when the filter 11b is clogged, there is a problem that fuel overflows the pan 11, but since the filter 11b is on the bottom of the pan 11, the filter area is enlarged. could not. Further, even if it is attempted to attach the filter 11b to the side surface, in the conventional saucer shape, there is an annular convex wall 11c for preventing the fuel wraparound, so that a large area cannot be taken to integrally form the filter. was there.

The present invention has been made in order to solve the above problems, and is a liquid which can reduce the frequency of cleaning the filter of the receiving tray and prevent the inflow of dust into the main body of the combustion apparatus. An object is to obtain an oil supply device for a fuel combustion device.

[0011]

A fuel supply device for a liquid fuel combustion apparatus according to the present invention comprises a cartridge tank for containing the liquid fuel, and an auxiliary tank for receiving the supply of the liquid fuel from the cartridge tank and storing the liquid fuel. In an oil supply device of a liquid fuel combustion apparatus, which is provided with a tray provided with a push-up pin for pushing and opening a valve body provided on the filler cap of the cartridge tank, a bottomed cylindrical shape having the push-up pin at the center thereof. The oil receiving part and the mounting support part having an annular convex wall for preventing the fuel sneak-up are divided into two parts, and the oil receiving part and the mounting support part are integrally connected.

Further, a filter portion is integrally formed on the side surface of the oil receiving portion of the pan with a mesh or a porous body.

Further, a filter portion is integrally formed with a mesh or a porous body on the side surface and the bottom surface of the oil receiving portion of the pan.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. The first embodiment of the present invention will be described below. 1 is a sectional view of an essential part showing a first embodiment of the present invention, FIG. 2 is a sectional view of a saucer showing the first embodiment of the present invention, and FIG. 3 is a mounting support constituting the saucer of the first embodiment. It is a top view and a side view of a part and an oil receiving part.
In the figure, the same or corresponding parts as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 1, reference numeral 11 denotes a tray installed between the cartridge tank 1 and the auxiliary tank 12, and this tray 11 has a push-up pin 11 at the center as shown in FIG.
It is divided into two parts, a bottomed cylindrical oil receiving portion 14 having a and a mounting support portion 15 having an annular convex portion 11c for preventing fuel wraparound, and the oil receiving portion 14 and the mounting support portion 15 are integrally formed. It is composed by combining. A filter portion 11b made of mesh is integrally formed on the side surface of the oil receiving portion 14.

Next, the operation of the first embodiment will be described. As shown in FIG. 1, when the cartridge tank 1 containing the liquid fuel 2 is attached to the main body of the combustion apparatus with the fuel filler port 3 facing downward, the cartridge tank 1 is attached to the tank guide plate 1.
3, the cap portion 4a of the fuel filler cap 4 is guided.
Is inserted into the oil receiving portion 14 of the receiving tray 11 located therebelow, and is guided to a position where the valve body 8 of the filler cap 4 and the push-up pin 11a of the receiving tray 11 are exactly aligned with each other. Push-up pin 11a of the tray 11 arranged on the auxiliary tank 12
As a result, the valve body 8 of the cap portion 4a of the filler cap 4 becomes O
It is pushed in together with the ring 9, the outlet 4b is opened, the airtight state of the cartridge tank 1 is broken, and the liquid fuel 2 starts to flow out. While replacing the liquid fuel 2 in the cartridge tank 1 with the outside air, the cartridge tank 1
The liquid fuel 2 inside flows out to the receiving tray 11, passes through the filter 11b on the side surface of the oil receiving portion 14 of the receiving tray 11, is supplied into the auxiliary tank 12, and the liquid level 2a in the auxiliary tank 12 rises.

Due to the rise of the liquid level 2a, the filler cap 4
When the liquid surface 2a covers the tip of the cap portion 4a of the above, that is, when the outside air does not enter the cartridge tank 1,
The outflow of the liquid fuel 2 is stopped and kept in that state. The liquid fuel in the auxiliary tank 12 is sent to the combustor (not shown) by the fuel pumping pump (not shown) provided in the auxiliary tank 12, and when the liquid level 2a in the auxiliary tank 12 drops, , Liquid fuel 2 in cartridge tank 1
Flows out into the auxiliary tank 12, and the liquid level 2a rises.

Here, in the first embodiment, the pan 11 has a bottomed cylindrical oil receiving portion 14 provided with a push-up pin 11a at the center and an annular convex wall 11 for preventing fuel from sneaking in.
Since the oil receiving portion 14 and the mounting support portion 15 are integrally connected to each other, the filter portion 11b is not disposed on the bottom surface of the tray 11,
It can be provided on the side surface of the oil receiving portion 14 in a large area, and the filter area can be greatly expanded as compared with the conventional one provided on the bottom surface of the tray 11. Therefore, the number of times of cleaning the filter portion 11b can be reduced and the filter area can be increased, so that the filter portion 11b can be made finer and the inflow of dust into the combustion apparatus main body can be reliably prevented. it can. Furthermore, the grip portion 5 due to overflow caused by conventional filter clogging
It is also possible to prevent the fuel from flowing out. In addition, this Embodiment 1
Then, although the filter portion 11b is made of a mesh, a similar effect can be obtained even if it is made of a porous body.

Embodiment 2. Second Embodiment FIG. 3 is a sectional view of a tray showing a second embodiment of the present invention. In the second embodiment,
The filter portion 11b of the oil receiving portion 14 is integrally provided on both the side surface and the bottom surface with a mesh. The filter portion 11b may be made of a porous material.

As described above, in the second embodiment, since the filter 11b made of the mesh is formed on both the side surface and the bottom surface of the oil receiving portion 14 constituting the receiving tray 11,
Since the area of the filter portion 11b is further increased, the eyes of the filter portion 11b can be made finer and the inflow of dust into the combustion apparatus body can be prevented more reliably.

[0021]

As described above, according to the present invention, it is possible to increase the area of the filter portion of the tray, reduce the clogging of the filter portion of the user, and reduce the frequency of filter cleaning. it can. Further, by making the filter part finer, it is possible to prevent dust from flowing into the main body of the combustion apparatus. Further, it is possible to prevent the fuel from flowing out to the grip portion due to the overflow caused by the filter clogging.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts showing a first embodiment of an oil supply device of the present invention.

2A and 2B are a plan view and a side view of a mounting support portion that constitutes the saucer according to the first embodiment of the present invention.

3A and 3B are a plan view and a side view of an oil receiving portion that constitutes the receiving tray according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of a tray showing the second embodiment of the oil supply device of the present invention.

FIG. 5 is a sectional view of a main part of a conventional oil supply device.

6A and 6B are a plan view and a cross-sectional view of components that form a conventional saucer.

[Explanation of symbols]

1 cartridge tank, 2 liquid fuel, 4 filler cap, 5 grip, 8 valve body, 11 saucer, 11a
Push-up pin, 11b filter part, 11c annular convex wall, 12 auxiliary tank, 14 oil receiving part, 15 mounting support part.

Claims (3)

[Claims] 1. A cartridge tank for containing a liquid fuel, an auxiliary tank for receiving the liquid fuel supplied from the cartridge tank to store the liquid fuel, and a valve element provided on a filler cap of the cartridge tank are pushed open. In an oil supply device of a liquid fuel combustion apparatus including a receiving tray provided with push-up pins, a mounting support portion having a bottomed cylindrical oil receiving portion having a push-up pin in a central portion and an annular convex wall for preventing fuel from wrapping around the receiving tray The oil supply device for a liquid fuel combustion apparatus, characterized in that the oil reception part and the mounting support part are integrally connected to each other. 2. The oil supply device for a liquid fuel combustion apparatus according to claim 1, wherein a filter portion is integrally formed with a mesh or a porous body on a side surface of the oil receiving portion of the pan. 3. The oil supply device for a liquid fuel combustion apparatus according to claim 1, wherein a filter portion is integrally formed with a mesh or a porous body on the side surface and the bottom surface of the oil receiving portion of the pan.