JP3019625U - Horizontal cylindrical air cleaner - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The elasticity of the soft resin material of the air cleaner cover is effectively used, and a part of the outer periphery of the cover is processed into a shape that serves as a dust discharge plate valve. Dust is discharged by pulsating operation of the engine without adding any parts, and the life of the element is clogged with dust to extend its life. [Structure] A U-shaped cut-through line is provided in a part near the outer periphery of the cover 11 toward the center and upward, and a discharge valve 13 is provided so that the U-shaped bottom portion contacts the upper surface of the annular collar of the casing, so that a U-shaped valve is always provided. Is part of the cover,
When the wind pressure is applied to the engine for pulsating operation, the size of the U-shape and the plate thickness of the valve portion are set so as to open to a predetermined opening.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine air cleaner, and more particularly, to a horizontal tubular air cleaner in which a casing cover is made of a soft resin material and a part of which has a dust discharging function.

[0002]

[Prior art]

 Conventionally, in a casing of an air cleaner, dust that floats in the primary side space of the element before filtration is discharged to the outside of the room. Alternatively, an elastic plate valve that discharges dust by utilizing the pulsating operation of the engine is attached to the casing cover, etc., each of which is effective in extending the life of the clogged element.

[0003]

[Problems to be solved by the device]

 The one that uses the elastic plate valve for dust discharge is advantageous in that it is simpler in equipment than the one that uses the automatic discharge valve, but it is still the simplest one and the discharge hole is provided in the cover and An elastic plate valve, a cover plate that protects the elastic plate valve and suppresses the plate valve to a predetermined opening, and a rivet that firmly holds and stacks these valves are required. The problem was that it was an obstacle to reducing the cost of the air cleaner.

[0004]

[Means for Solving the Problems]

 As a solution to the above problems, the present invention utilizes the soft resin material of the cover without adding the number of parts to the cost reduction model disclosed in Japanese Utility Model Publication No. 7-5857, and the annular holding frame of the element on the back surface of the cover. The plate surface on the outer side has a plate thickness suitable for a plate valve for dust discharge (described later), and one U-shaped cut-through line is provided near the outer periphery of the cover, facing upward toward the center, and viewed from the cover surface. By providing the bottom so that it covers the upper surface of the annular collar of the casing, it opens with the wind pressure due to the pulsating operation of the engine and has the function of a plate valve that discharges dust.

[0005]

【Example】

Hereinafter, a detailed description will be given based on an embodiment of the present invention with reference to the drawings. As shown in FIGS. 1 and 2, there is a tangential inlet 2 to the casing 1, and an outlet 4 is formed in the closed end wall 3 of the casing 1 in FIG. the outlet 4 are integral with the cylinder 4 _-1 which projects cylindrical portion and the indoor projecting to the outside. Element 6 presses the inner circumference of the hollow filter medium 7 in perforated tube 8 covers the outer periphery of a porous tube 9, embedding the opening end side of the elastic member gasket 10, the gasket 10 to the outer periphery of the outlet tube 4 _-1 However, it is formed so as to form a radial seal. The closed end plate that closes the other end is made of a soft resin material in the same manner as the open end side, except that the element 6 is embedded and molded and held, and expanded to a size that covers the open end annular collar 5 of the casing 1, By providing a locking collar 12 so as to cover up to the back surface of the annular collar 5 projecting in the outer peripheral direction, and by adopting a fitting and locking type, the cover 11 which also serves as a holding and is provided with the holding frame 11 _-1 of the element 6 is formed. Up to this point, the concept is the same as the cost reduction type disclosed in Japanese Utility Model Publication No. 7-5857. FIG. 2 is a view seen from the surface side of the cover 11 of FIG. 1, and a dust discharge valve 13 having a U shape with a cut-through line is formed downward toward the outer periphery and upward toward the center. In order for the dust discharge valve 13 to operate effectively, it is necessary to select the plate thickness, the width of the valve surface, etc. in terms of formation, but this requires external factors such as wind pressure for engine pulsation and valve simply not determined because the elasticity or the like can affect complex and therefore which was determined result of trial and error in repeated by the test, the outer side of the flat surface all around the discharge valve from the holding frame 11 _-1 elements 6 In addition to having the same plate thickness as 13, the reinforcing ribs 11 _-2 connected to the holding frame 11 _-1 as shown in FIG. was arranged by molding, it is that installing the discharge valve 13 to select 1箇office area sandwiched between the reinforcing ribs 11 _-2. The U-shaped bottom portion of the discharge valve 13 is provided so as to cover the upper surface of the annular flange 5 at the open end of the casing 1 so as to form a part of the cover 11 while being kept closed except for opening for pulsating operation of the engine. Further, the U-shaped both the upper end of the discharge valve 13, a small hole 13 _-1 piercing provided, external to tear stop than Switching Operation mouth end, the U-shaped Kiridoshi line portion, caused by operation of the valve unit Cuts and smooths both sides to reduce frictional resistance. Although the discharge valve 13 is installed so as to be located at a lower position in the horizontally placed air cleaner, a label indicating the vertical direction at the time of installation may be attached to the surface of the cover 11 just in case.

[0006]

[Effect of device]

 The air cleaner consists of two blocks, a casing and a cover that also holds the element, and the assembly is a locking type that fits with the flange on the outer circumference of the cover, which simplifies the structure and simplifies maintenance. By adding the function of a dust discharge valve that uses the pulse operation of the engine to some parts of the engine without the need for additional parts, it is possible to contribute to performance improvement without sacrificing the cost reduction type.

[Brief description of drawings]

FIG. 1 is a cutaway view of a main part of a horizontally-placed air cleaner according to an embodiment of the present invention.

FIG. 2 is a view seen from the front surface side of the cover of FIG.

FIG. 3 is a cross-sectional view taken along the dotted line AA of the main part of FIG.

[Explanation of Codes] 1 casing 2 inlet 3 closed end wall 4 outlet 4 _-1 outlet cylinder 5 annular collar 6 element 7 filter material 8 inner perforated cylinder 9 outer perforated cylinder 10 gasket 11 cover 11 _-1 holding frame 11 _-2 reinforcing rib 12 Locking collar 13 Discharge valve 13 _-1 Small hole

Claims (1)

[Scope of utility model registration request] 1. A closed end side of an element in which the inner and outer peripheries of a hollow tubular filter medium are covered with a perforated cylinder is embedded in a closed end plate made of a soft resin material and held as an integral molding, and an open end of a casing is provided. A cover that doubles as a flat plate and covers the vertically thick back of an annular collar that is provided at the opening end of the casing and projects toward the outer periphery, and is a fitting and locking type cover that also serves as an element holding One U-shaped cut-through wire is provided near the outer periphery upwards toward the center such that the bottom of the U-shape is in contact with the upper surface of the annular collar of the casing, and the U-shape is installed downward with the air cleaner attached. Horizontally mounted air cleaner.