CN-121993324-A - Adsorption tank

Abstract

The invention provides an adsorption tank capable of promoting drainage of a fastening part during water dipping. One embodiment is a canister (10) comprising a case (12) that houses an adsorbent, and mounting plates (20, 22) that extend from an outer wall surface (17) of the case (12), wherein the mounting plates (20, 22) have a fastening portion (24) for mounting to a vehicle, and at least one drain hole (30) that is provided between the case (12) and the fastening portion (24), and wherein the mounting plates (20, 22) are at least partially inclined so as to become lower from the fastening portion (24) toward the at least one drain hole (30).

Inventors

• Ban Yashi Zi

Assignees

• 爱三工业株式会社

Dates

Publication Date

20260508

Application Date

20251010

Priority Date

20241105

Claims (2)

1. 1. An adsorption tank, wherein, The adsorption tank is provided with: A housing accommodating the adsorbent, and A mounting plate extending from an outer wall surface of the housing, The mounting plate has a fastening portion for mounting to a vehicle, and at least one drain hole provided between the housing and the fastening portion, The mounting plate is at least partially inclined so as to become lower from the fastening portion toward the at least one drain hole.
2. 2. The canister of claim 1, wherein, The upper surface of the mounting plate has a curved surface extending downward from the outer wall surface of the housing toward the at least one drain hole.

Description

Adsorption tank Technical Field The disclosed technology relates to a canister. Background In a vehicle such as an automobile provided with an engine, an adsorption tank for trapping evaporated fuel generated from a fuel tank is generally mounted. As disclosed in japanese patent application laid-open No. 2021-161892, the canister is attached to a vehicle body frame via a bracket, for example. Prior art literature Patent literature Patent document 1 Japanese patent laid-open publication No. 2021-161892 Disclosure of Invention Problems to be solved by the invention The canister of the above publication does not have a structure that actively drains water when the canister is immersed in water in a mounting portion mounted on a vehicle body, and thus may corrode retained water such as a fastener. Accordingly, it is desirable to provide an adsorption tank capable of promoting drainage of a fastening portion at the time of soaking. Solution for solving the problem An aspect of the present technology is an adsorption tank, wherein the adsorption tank includes a case that houses an adsorption material, and a mounting plate that extends from an outer wall surface of the case, the mounting plate having a fastening portion for mounting to a vehicle, and at least one drain hole provided between the case and the fastening portion, the mounting plate being at least partially inclined so as to become lower from the fastening portion toward the at least one drain hole. Thus, even if the mounting plate is wet, the water on the upper surface is guided toward the drain hole, and the water adhering to the lower surface flows in a direction away from the fastening portion. Vibrations during running of the vehicle promote their flow down. Therefore, for example, when the bolt is used for the fastening portion, corrosion of the bolt due to water retained in the fastening portion can be suppressed. According to an embodiment, the upper surface of the mounting plate has a curved surface extending downward from the outer wall surface of the housing toward the at least one drain hole. Thus, water falling along the outer wall surface of the casing is guided to the drain hole without being retained on the wall edge of the casing. Drawings Fig. 1 is a front view showing an adsorption tank having a mounting plate as one embodiment. Fig. 2 is an enlarged top view of the mounting plate of the canister of fig. 1. Fig. 3 is a cross-sectional view of the mounting plate of fig. 2 taken along line III-III. Description of the reference numerals 10. The adsorption tank, 12, the shell, 13, the shell main body, 14, the cover member, 15, the tank opening, 16, the atmospheric opening, 17, the side wall surface, 18, the reinforcing plate, 20, 22, the mounting plate, 22a, the upper surface, 22b, the lower surface, 22c, the concave curved surface, 24, the through hole, 26, the collar, 28, the supporting part, 30, the drain hole and the H, the horizontal plane. Detailed Description Various embodiments of the present technology are described below with reference to the drawings. [ Adsorption tank ] As one embodiment, fig. 1 shows an adsorption tank 10 mounted on a vehicle such as an automobile provided with an engine, for capturing vaporized fuel (vapor) generated from a fuel tank (not shown). The fuel in the fuel tank is pumped by the fuel pump and supplied to the engine through the supply passage. On the other hand, a vent passage communicating with the atmosphere for alleviating pressure fluctuations occurring during a stop operation or the like is connected to the fuel tank. The canister 10 is provided in the middle of the ventilation passage, and adsorbs and traps fuel molecules by an adsorbent such as activated carbon so that evaporated fuel is not emitted to the atmosphere when the pressure of the fuel tank increases. The canister 10 has a housing 12 that houses an adsorbent. The case 12 is constituted by, for example, a case main body 13 and a cover member 14. The case 12 of the canister 10 is provided with a tank port 15 to which a vapor passage communicating with the fuel tank is connected. The housing 12 is provided with an atmospheric air port 16 connected to an atmospheric air passage communicating with the atmosphere. Typically, the housing 12 is further provided with a purge port connected to an intake pipe of the engine via a purge passage. A fluid passage is formed in the housing 12, and a plurality of adsorption layers made of an aggregate of adsorption materials such as activated carbon are disposed in the fluid passage. [ Mounting plate ] The canister 10 is attached to, for example, a frame member such as a side member or a cross member that constitutes a lower structure of the vehicle body. The canister 10 has at least one mounting plate 20, 22 (two are shown in the drawings) extending in the lateral direction from the outer wall surface of the housing 12, and is mounted to the vehicle by the mounting plates 20, 22. As an embodiment,