JPH0652912U - Oil strainer - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an oil strainer capable of preventing the end portion of a suction pipe from being blocked by foreign matter drawn toward the end portion of the suction pipe. [Structure] In the oil strainer 10, a gauze 12 is attached to an end of a suction pipe 11, and at least a part of the gauze 12 is projected below the end of the suction pipe 11 (outward in the longitudinal direction). ing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil strainer used when sucking oil from the oil pan.

[0002]

[Prior art]

 The oil strainer is composed of a suction pipe protruding into the oil pan and a goose attached to the end (opening) of the suction pipe. The gauze prevents foreign matter (bolts, nuts, etc.) existing in the oil pan from flowing into the suction pipe, and prevents damage to the oil pump that sucks oil through the suction pipe.

[0003]

[Problems to be solved by the device]

 However, if a large foreign matter is sucked into the end of the suction pipe and blocks the entire end of the suction pipe, there is a problem that it is no longer possible to suck the oil.

The present invention has been made in view of such a problem, and can prevent the end of the suction pipe from being blocked by the foreign matter sucked toward the end of the suction pipe. The aim is to provide an oil strainer that can ensure oil suction even if the end of the suction pipe is blocked.

[0005]

[Means for Solving the Problems]

 To achieve the above object, in the first oil strainer of the present invention, a gauze is attached to the end of the suction pipe, and at least a part of the gauze is located outside the end of the suction pipe in the longitudinal direction of the pipe. It is projected toward.

Further, in the second oil strainer of the present invention, the gauze is mounted inward in the longitudinal direction with respect to the end portion of the suction pipe, and the oil passage is formed on the side surface in the longitudinal direction with respect to the mounting position of the gauze in the suction pipe. Is forming.

[0007]

[Action]

 According to the first oil strainer, the foreign matter sucked toward the end portion of the suction pipe comes into contact with the protruding portion of the goose from the end portion of the suction pipe, and does not stick to the end portion of the suction pipe. . Therefore, the end opening of the suction pipe is not blocked by foreign matter, and the suction of oil into the suction pipe is not hindered.

Further, according to the second oil strainer, even if foreign matter is adsorbed on the end portion of the suction pipe and blocks it, the flow of oil is ensured through the oil passage formed on the side surface of the suction pipe. Therefore, the suction of oil into the suction pipe is not blocked.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, FIG. 1 shows a first oil strainer according to the present invention (the oil strainer according to claim 1). The oil strainer 10 includes a suction pipe 11 that extends downward from a suction port of the hydraulic pump P and projects into the oil pan T, and a goose 12 attached to the suction pipe 11.

As shown in FIG. 2, the goose 12 is formed by forming circular through holes 12a, 12a, ... On a circular steel plate at every 90 degrees in the circumferential direction. In addition, between the circular through holes 12a and 12a adjacent to each other, a U-shaped rounded portion is formed so as to face inward in the radial direction. The four U-shaped pieces 12b, 12b, ... Left inside these U-shaped cuts are raised at right angles to form U-shaped through holes 12c, 12c ,.

The goose 12 thus formed is attached to the lower end of the suction pipe 11 so as to cover its opening, as shown in detail in FIG. At this time, however, the goose 12 is oriented such that the four U-shaped pieces 12b, 12b, ... Project downward (outward in the longitudinal direction) from the lower end of the suction pipe 11.

By using the oil strainer 10 configured in this way, as shown in FIG. 1, the oil OL in the oil pan T can be sucked into the hydraulic pump P through the suction pipe 11. The relatively large foreign matter 21, such as bolts and nuts, drawn to the lower end of the suction pipe 11 together with the oil OL cannot pass through the circular through hole 12a or the U-shaped through hole 12c formed in the gauze 12, so The inflow of 21 into the suction pipe 11 can be prevented. Furthermore, when a large foreign substance 22 such as an iron plate piece that blocks the lower end opening of the suction pipe 11 is attracted to the lower end portion of the suction pipe 11, the foreign matter 22 abuts on each U-shaped piece 12b. It is possible to reliably prevent 22 from adhering to the lower end of the suction pipe 11 and closing the lower end opening of the suction pipe 11. Therefore, even if there are foreign matters 21, 22 in the oil pan T, the suction of the oil OL into the hydraulic pump P is not hindered.

The first oil strainer according to the present invention is not limited to the one using the goose 12 as in the above embodiment. For example, as shown in FIG. 4, a similar effect can be obtained by using a goose 32 that is formed in a hemispherical shape so as to project downward from the lower end of the suction pipe 31 and has through holes 31a, 31a, ... Can be obtained.

Next, a second oil strainer according to the present invention (the oil strainer according to claim 2) will be described. As shown in FIG. 5, the oil strainer 50 includes a suction pipe 51 that extends downward from the suction port of the hydraulic pump P and projects into the oil pan T, and a goose 52 that is attached to the suction pipe 51. There is.

As shown in FIG. 6, the goose 52 is a circular steel plate having circular through holes 52a, 52a, ... As shown in FIG. 7, the gauze 52 is mounted above the lower end of the suction pipe 51 (inward in the longitudinal direction) so as to vertically partition the inner space of the pipe 51.

On the other hand, on the side surface of the suction pipe 51 below the mounting position of the gauze 52 (outward in the longitudinal direction), a circular through passage is provided every 90 degrees in the circumferential direction (the “oil passage” in claim 2). 51a, 51a, ... Are formed.

By using the oil strainer 50 configured as described above, as shown in FIG. 5, the oil OL in the oil pan T can be sucked into the hydraulic pump P through the suction pipe 11. The relatively large foreign matter 61 such as bolts and nuts attracted to the lower end of the suction pipe 51 together with the oil OL cannot pass through the circular through hole 52a formed in the gauze 52. Inflow can be blocked. On the other hand, a large foreign substance 62 such as an iron plate piece may stick to the lower end portion of the suction pipe 51 and block the opening. Even in this case, however, the circular through passage 51a formed on the side surface of the suction pipe 51. The oil OL can be sucked in through 51a. Therefore, even if there are foreign matters 61 and 62 in the oil pan T, the suction of the oil OL into the hydraulic pump P is not blocked.

The second oil strainer according to the present invention is not limited to the one in which the oil passage (41a) is formed as in the above embodiment. For example, as shown in FIG. 8, the same effect can be obtained by forming the oil passage 71a on the side surface of the sanction pipe 71 below the mounting position of the gauze 72 so as to open at the lower end. You can

[0019]

As described above, in the first oil strainer of the present invention, the foreign matter sucked toward the end portion of the suction pipe by the protruding portion of the goose from the end portion of the suction pipe. It is prevented from sticking to the ends.

In addition, in the second oil strainer of the present invention, even if foreign matter sticks to the end of the suction pipe and blocks it, oil is sucked in through the oil passage formed on the side surface of the suction pipe.

Therefore, by using these oil strainers, even if there is a large foreign substance in the oil pan, the foreign matter does not hinder the suction of the oil, and the oil pump is always smoothly operated. Can be supplied.

[Brief description of drawings]

FIG. 1 is a side view of a first oil strainer according to the present invention.

FIG. 2 is a bottom view of the first oil strainer.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a side sectional view showing a second embodiment of the first oil strainer.

FIG. 5 is a side view of a second oil strainer according to the present invention.

FIG. 6 is a bottom view of the second oil strainer.

7 is a cross-sectional view taken along the line VII-VII in FIG.

FIG. 8 is a side sectional view showing a second embodiment of the second oil strainer.

[Explanation of symbols]

 10, 40 Oil strainer 11, 41, 31, 71 Suction pipe 12, 42, 32, 72 Gauze 12b U-shaped piece (a part of Gauze) 41a, 71a Circular through hole (oil passage) 21, 22, 61, 62 Foreign matter P Hydraulic pump T Oil pan

Front page continuation (72) Natoru Goto Inventor, Fujisawa-shi, Kanagawa 8 Tsutana, Isuzu Motors Co., Ltd. Fujisawa Plant (72) Inventor Takayuki Kiuchi 3 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa Isuzu Motors Co., Ltd. Kawasaki Plant

Claims (2)

[Scope of utility model registration request] 1. An oil strainer comprising: a suction pipe projecting into an oil pan; and a gauze attached to the suction pipe to prevent foreign matter existing in the oil pan from flowing into the suction pipe. Is attached to an end of the suction pipe, and at least a part of the gauze projects outward in the longitudinal direction of the suction pipe more than the end of the suction pipe. 2. An oil strainer comprising a suction pipe protruding into an oil pan, and a gauze attached to the suction pipe to prevent foreign matter existing in the oil pan from flowing into the suction pipe. Is attached to the inner side of the suction pipe in the longitudinal direction of the suction pipe, and an oil passage is formed on the side face of the suction pipe in the longitudinal direction outside the mounting position of the goose. Characteristic oil strainer.