JPH0580506U - Disposable oil filter device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a disposable oil filter device having a structure that does not cause a seal failure even when oil thickens and exerts a strong fluid pressure in the cold season. [Structure] A filter element 11 is provided in a cylindrical case 10.
Is provided at the open end of the cylindrical case 10, and a closing plate 18 having a diameter larger than the outer peripheral diameter of the cylindrical case 10 is provided, and the thin plate 19 and the cylindrical case 10 outside thereof are caulked on the outer circumference of the thin plate 19. The annular flange 22 of the case is formed. Such a disposable oil filter is screwed into the mounting portion 23, the supporting cylinder 27 is further attached to the mounting portion 23, and the upper wall 29 of the supporting cylinder 27 is in contact with the flange. As a result, the closing plate 18 is supported by the support cylinder 27.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present application mainly relates to a disposable oil filter device mounted on a lubricating system of an internal combustion engine.

[0002]

[Prior Art]

 In a conventionally known disposable oil filter device, as shown in FIG. 2, a filter element 2 is arranged in a cylindrical case 1, and a screw hole 3 is provided in the center at an open end of the cylindrical case 1 to flow around it. A structure is provided in which a thick plate 5 having holes 4 is arranged, a thin plate 6 is arranged outside the thick plate, and the outer peripheral edge of the thin plate and the open end of the case are swaged and integrated. is there. 7 is a spring, 8 is a check valve, and 9 is a seal packing.

This oil filter is screwed into a mounting pipe of a cylinder block of an internal combustion engine for use. The oil flows in through the flow hole 4 of the thick plate 5, is filtered while flowing through the filter element 2, and flows out toward the inside of the screw hole 3.

[0004]

[Problems to be solved by the device]

 When oil is made to flow into the filter through the circulation holes 4 of the thick plate 5 in the cold season, the thick plate 5 may be deformed upward to form a gap between the seal packing 9 and the cylinder lock, resulting in poor sealing. . This occurs because the viscosity of oil rises extremely during the cold season.

In order to prevent such a sealing failure, it is sufficient to increase the thickness of the thick plate 5 to increase the rigidity, but if this is done, the weight will increase.

[0006]

[Means for Solving the Problems]

 A filter element is arranged in a cylindrical case having an open end, a screw hole is provided in the center of the open end, and a through hole is provided around the filter hole. A thin plate accommodating the seal packing is placed outside the plate, and the thin plate and the opening edge of the case are crimped, and the annular flange of the cylindrical case is formed on the outer circumference of the closing plate to form a disposable oil filter. , The screw hole of the filter is screwed into the mounting pipe of the mounting portion, and the upper wall having an opening and a support cylinder having a thread groove on the outer periphery are attached to an annular wall provided in the mounting portion, and the inner peripheral portion of the upper wall Is abutted on the flange portion.

[0007]

[Action]

 In the cold season, the oil thickens and exerts a strong fluid pressure on the closing plate of the disposable oil filter, but the closing plate is supported by the support cylinder and does not deform upward.

[0008]

【Example】

 FIG. 1 shows an embodiment of the present invention. A disposable oil filter comprises a cylindrical case 10 having an open end and a filter element 11 disposed therein. The filter element 11 comprises a chrysanthemum-shaped fold-fold filter paper body 13 arranged around a perforated inner cylinder 12, and upper and lower end plates 14 and 15 fixed to the upper and lower ends thereof.

At the open end of the cylindrical case 10, a disk-shaped closing plate 18 having a screw hole 16 in the center and a plurality of circulation holes 17 formed around the screw hole 16 is arranged. The outer diameter of the closing plate 18 is set to a value larger than the outer diameter of the cylindrical case.

A thin plate 19 is arranged outside the closing plate 18, and an outer peripheral end portion of the thin plate 19 is caulked with an open end edge of the cylindrical case 10. A packing receiving portion 20 is provided on the inner peripheral edge of the thin plate 19, and a seal packing 21 is stored in the receiving portion. On the open end side of the cylindrical case 10, an annular flange portion 22 is formed above the outer peripheral portion of the closing plate 18. Reference numeral 31 is a leaf spring.

The disposable oil filter as described above is screwed into a threaded mounting pipe 24 of a mounting portion 23 such as a cylinder block or a bracket to form a disposable filter device. The mounting portion 23 has an annular wall 25 on the outer circumference of the mounting pipe 24, and a thread groove 26 is formed on the outer peripheral wall surface of the annular wall. A support cylinder 27 is attached to the thread groove 26. The support cylinder 27 is a tubular shape having an opening 28 in the upper wall 29 and an opening downward, and has a shape in which a screw 30 is provided on the side wall. The opening 28 is set larger than the outer diameter of the cylindrical case 10. The inner peripheral portion of the upper wall 29 of the support cylinder 27 is in contact with the flange portion 22 of the cylindrical case 10 when the support cylinder 27 is attached.

The oil flows into the cylindrical case 10 through the flow hole 17 of the closing plate 18, flows through the filter element 11 and flows out toward the mounting pipe 24.

[0013]

【effect】

 As described above, according to the present invention, the closing plate of the disposable filter is supported by the support tube, so that the occurrence of defective sealing is prevented even in the cold season. Moreover, since the thickness of the closing plate can be reduced, the weight of the disposable filter itself is reduced.

[Brief description of drawings]

 1 is a drawing showing an embodiment of the present invention. FIG. 2 is a drawing showing a conventional device.

[Explanation of symbols]

 10 Cylindrical Case 11 Filter Element 18 Closing Plate 19 Thin Plate 22 Annular Flange 27 Support Cylinder 29 Upper Wall

Claims (1)

[Scope of utility model registration request] 1. A filter element is disposed in a cylindrical case having an open end, and a screw hole is provided at the center of the open end and a flow hole is provided around the filter element to form a disk-shaped closing plate having a diameter larger than that of the case. A thin plate containing the seal packing is disposed outside the closing plate, the thin plate and the case opening edge are crimped, and an annular flange portion of the cylindrical case is formed on the outer circumference of the closing plate to form a disposable type. As an oil filter, the screw hole of the filter is screwed into a mounting pipe of a mounting portion, and an upper wall having an opening and a support cylinder having a thread groove on the outer periphery are attached to an annular wall provided in the mounting portion to form an upper wall. A disposable oil filter device in which an inner peripheral portion is in contact with the flange portion.