JPH0669044U - Reservoir - Google Patents

Abstract

(57) [Abstract] [Purpose] A vertically extending tubular storage portion is provided, and an outlet hole that opens upward into the storage portion is provided at the lower end of the storage portion, and a pump is provided in the outlet hole. In the connected reservoir, it is possible to prevent swirling from occurring in the storage portion. [Structure] A wall portion 23 is provided in the storage portion 7 at the inner end of the outlet hole 17 so as to face the inner side thereof. A plurality of ribs 24 extending along the vertical direction are continuously provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention has a cylindrical storage part extending vertically, and an outlet hole that opens upward into the storage part is provided at the lower end of the storage part, and a reservoir to which a pump is connected is provided in the outlet hole. About Ba

[0002]

[Prior art]

 Conventionally, such a reservoir is known from, for example, Japanese Utility Model Publication No. 2-1212.

[0003]

[Problems to be solved by the device]

 Such a reservoir is attached to, for example, a modulator for an anti-lock brake of an automobile, but in the conventional reservoir described above, the outlet hole is only provided in the reservoir with its inner end facing upward. Therefore, when the hydraulic fluid in the reservoir is sucked by the pump from the outlet hole, a swirl is likely to occur in the reservoir, and in particular, when the viscosity of the hydraulic fluid is reduced, the air may be sucked by the swirl.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a reservoir capable of preventing the formation of a vortex in the reservoir.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, according to the present invention, a wall portion facing the inner side of the outlet hole is provided in the storage portion, and the wall portion is circumferentially spaced. At the position, a plurality of ribs extending in the radial direction of the outlet hole extend vertically and are connected in series.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention. FIG. 1 is a vertical sectional side view of a reservoir, which is a sectional view taken along line 1-1 of FIG. 2, and FIG. 2-2 line sectional drawing, FIG. 3 is a 3-3 line sectional view of FIG.

First, referring to FIG. 1, the reservoir R includes an upper reservoir half 4 and a lower reservoir half 5 formed of synthetic resin, and flanges 4 a and 5 a provided on the peripheral edges of the facing surfaces of these reservoirs 4 and 5, respectively. The first storage part 6 is formed by welding the two to each other, and is horizontally arranged in a flat box shape, and a corner extending downward from one end of the first storage part 6 and extending downward. And a second storage part 7 formed in a tubular shape.

Referring also to FIG. 2, the first storage portion 6 is provided with a plurality of, for example, a pair of bosses 8a and 8b, and these bosses 8a and 8b are used for antilock brakes by bolts (not shown). The first storage section 6 is fixedly mounted on the modulator 9 by being fixed to the modulator 9, and the second storage section 7 is arranged on the side of the modulator 9.

The first storage part 6 is provided with L-shaped partition walls 10 along two adjacent sides thereof so as to connect the upper and lower walls of the storage part 6 with each other. The inside of the storage section 6 of No. 1 is divided into a large volume main chamber 6a and an L-shaped flow path 6b having a small volume. A partition plate 11 is positioned and fixed between the first and second storage parts 6 and 7, and the partition plate 11 has a main chamber 6a at a corner opposite to the center of the main chamber 6a. A notch 12 is provided as a communication port that communicates with the inside of the storage part 7. Further, the partition plate 11 is integrally formed with a partition wall part 11a for blocking between the flow path 6b and the main chamber 6a above the partition plate 11, and the second storage part 7 and the flow path 6b are separated from each other. A lower projecting piece 11b that defines a communication port 13 that communicates between the ends is integrally formed.

An inlet pipe 15 that communicates with the other end of the flow path 6b and is attached with a filter 14 is provided in the first storage portion 6 so as to project downward. The inlet pipe 15 has a modular structure. A return pipe 16 connected to the discharge port of the switch 9 is connected. At the lower end of the second storage portion 7, an outlet pipe 18 forming an outlet hole 17 that opens upward on the inner surface of the second storage portion 7 is provided in a protruding manner. A feed pipe line 20 is connected to a suction port of a pump 19 that supplies hydraulic fluid to the modulator 9. A liquid supply port 22 that is normally closed by a cap 21 is provided on the upper wall of the first storage section 6 at a position separated from the flow path 6b.

With reference to FIG. 3 as well, according to the present invention, the lower end portion of the second storage portion 7 is provided with a wall portion 23 facing the inner end of the outlet hole 17 on the inner side thereof. At the same time, a plurality of ribs 24, eg, four, extend vertically and are connected to the wall portion 23.

At the lower end of the second storage portion 7, a cylindrical supporting cylinder 25 is integrally provided concentric with the inner end opening of the outlet hole 17, and the upper end of the supporting cylinder 25 is closed. A wall portion 23 is provided. Moreover, the support cylinder 25 is provided with a plurality of, for example, four communication holes 25a for guiding the hydraulic fluid in the second storage portion 7 to the outlet holes 17 at intervals in the circumferential direction.

The ribs 24 are formed to have, for example, a cross-shaped cross-sectional shape, and extend upward from the upper surface of the wall portion 23 and downward from the lower surface of the wall portion 23. It

Next, the operation of this embodiment will be described. The hydraulic fluid injected into the liquid supply port 22 of the reservoir R passes through the notch 12 of the partition plate 11 from the main chamber 6a of the first storage section 6 to the first chamber. The second storage portion 7 and the main chamber 6a are filled with the hydraulic fluid.

When the pump 19 is operated, the hydraulic fluid in the second storage portion 7 is sucked into the pump 19 via the outlet pipe 18 and the feed pipe 20, and is fed under pressure to an accumulator (not shown). Thus, when the anti-lock brake of the automobile is activated, the hydraulic fluid stored in the accumulator is supplied to the modulator 9 or discharged from the modulator 9 to the return pipe 16 to be returned from the return pipe 16. The liquid is refluxed into the second reservoir 7 through the inlet pipe 15 provided with the filter 14, the flow path 6b and the communication port 13 in order. Although the hydraulic fluid discharged from the modulator 9 has a relatively high pressure, it is attenuated by the filter 14 and further attenuated while passing through the L-shaped long flow path 6b extending along the two sides of the reservoir R. Therefore, when it returns to the second storage section 7, the working fluid does not vigorously agitate the working fluid in the second storage section 7, and the main chamber is isolated from the flow path 6b. The working fluid of 6a is also not stirred.

By the way, when the hydraulic fluid in the second reservoir 7 is sucked into the outlet hole 17 by the operation of the pump 9, there is a possibility that whirlpool may occur in the vicinity of the outlet hole 17, but A plurality of ribs 24 are continuously provided on the facing wall portion 23, and these ribs 24 extend along the radial direction of the outlet hole 17, so that the flow of the hydraulic fluid toward the outlet hole 17 is limited to the wall portion. 23 and the ribs 24 are collided with each other, and the stirring effect by these prevents the generation of spirals. Therefore, even if the viscosity of the hydraulic fluid is reduced, it is possible to prevent swirling from occurring in the second storage portion 7, and to prevent air from being sucked into the hydraulic fluid accordingly.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the present invention described in the scope of claims for utility model registration. It is possible to make design changes.

[0019]

[Effect of device]

 As described above, according to the present invention, the inner end of the outlet hole is provided with a wall portion facing the inner side of the outlet portion, and the wall portion has the outlet hole at positions circumferentially spaced from each other. Since a plurality of ribs along the radial direction of the are extended vertically and are connected in series, the generation of swirls accompanying the suction of hydraulic fluid into the outlet holes is prevented, and air is prevented from being sucked into the hydraulic fluid. be able to.

[Brief description of drawings]

1 is a vertical sectional side view of a reservoir, which is a cross-sectional view taken along line 1-1 of FIG.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

3 is a sectional view taken along line 3-3 of FIG.

[Explanation of symbols]

 7 Storage Part 17 Outlet Hole 19 Pump 23 Wall Part 24 Rib R Reservoir

Claims (1)

[Scope of utility model registration request] 1. A cylindrical storage part (7) extending vertically is provided, and an outlet hole (17) opening upward into the storage part (7) is provided at a lower end of the storage part (7). In the reservoir in which the pump (19) is connected to the outlet hole (17), the storage portion (7) is provided with the wall portion (23) facing the inner end of the outlet hole (17) on the inner side thereof. The wall (2
3) has outlet holes (17) at circumferentially spaced positions.
A plurality of ribs (24) extending in the radial direction of the above are vertically extended and continuously provided.