CN103670588A

CN103670588A - Engine oil filter

Info

Publication number: CN103670588A
Application number: CN201210346983.5A
Authority: CN
Inventors: 张洪彬
Original assignee: DONGGUAN JIANGUAN AUTO PARTS MANUFACTURING CO LTD
Current assignee: DONGGUAN JIANGUAN AUTO PARTS MANUFACTURING CO LTD
Priority date: 2012-09-17
Filing date: 2012-09-17
Publication date: 2014-03-26

Abstract

The invention discloses an engine oil filter. The engine oil filter is composed of a filter shell body, a filter element, a check valve and a safety valve, and is characterized in that the safety valve is arranged between the filter element and a thread cover plate, and at the connection part of the filter element, an oil inlet and a central oil outlet. In this way, the safety valve is opened when the filter element is blocked or engine oil is thick and during cold start to continue to provide lubricating oil for an engine, and impurities remained in the engine oil filter during previous engine oil filtering cannot be conveyed into the engine, thus damages to the engine, caused during the filtering function failure of the engine oil filter are effectively reduced. Moreover, the engine oil filter is simple in structure, as well as simpler to assemble and lower in cost compared with a filter provided with a bypass valve at the other end of the filter element.

Description

A kind of oil filter

Technical field

The present invention relates to the oil filter of internal-combustion engine.

Background technique

Internal-combustion engine is typically provided with the lubrication system for lubrication and cooling, and lubrication system makes oil circulation pass through each parts of motor, takes away the impurity in motor simultaneously.Before getting back to motor, lubricant oil can, by oil filter, by oil filter, filter out harmful impurity.Traditional oil filter assembly comprises filter case, filter core, safety check, bypass valve.Wherein bypass valve can be opened when oil filter the inside oil pressure reaches setting height, to avoid motor oil-free lubrication.But bypass valve is opened the impurity that previously filtered can be stayed to oil filter the inside and is delivered to together in motor, and motor is had to larger infringement.And bypass valve can stop up or machine oil is opened during compared with silk fabric and cold start-up at filter core.Particularly machine oil can often occur compared with the situation of silk fabric and cold start-up, and this just causes damage to motor.This kind of bypass valve configuration just chosen the light for two of the victims, and shortcoming is larger.

Summary of the invention

In order to overcome the shortcoming of existing oil filter, the invention provides a kind of oil filter, it stops up or machine oil can open the safety-valve during compared with silk fabric and cold start-up at filter core, continuation provides lubricant oil to motor, and don't the impurity of staying in oil filter can be previously filtered machine oil time delivers in motor, be effectively reduced in the infringement causing to motor when oil filter filtering function lost efficacy.

The technical solution adopted for the present invention to solve the technical problems is: by filter case, filter core, safety check, safety valve, form oil filter, it is characterized in that: safety valve is arranged between filter core and thread plate, namely the connection part of filter core and filler opening and center oil outlet.Like this, at filter core, stop up or machine oil can open the safety-valve during compared with silk fabric and cold start-up, continuation provides lubricant oil to motor, and don't the impurity of staying in oil filter can be previously filtered machine oil time delivers in motor, be effectively reduced in the infringement causing to motor when oil filter filtering function lost efficacy.And it is simple in structure, simpler than bypass valve assembling is set in filter core other end, cost is lower.

The invention has the beneficial effects as follows, be effectively reduced in the infringement causing to motor when oil filter filtering function lost efficacy.And it is simple in structure, cost is lower.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described.

Fig. 1 is the schematic diagram of at present general oil filter.

Fig. 2 is the schematic diagram of first embodiment of the invention.

Fig. 3 is the schematic diagram of second embodiment of the invention.

In figure, 1. filter case, 2. supported spring, 3. filter core, 4. center oil outlet, 51. soft safe valve blocks, the safe valve block of 52. hard, 6. safe valve opening, 7. safety check, 8. filler opening, 9. thread plate, 10. seal ring, 11. safety valve springs, 21. supported springs, 22. bypass valve blocks, 23. case of by-pass valves, 24. filter cases, 25. filter cores, 26. center oil outlets, 27. safety check, 28. filler openings, 29. thread plates, 30. O-ring seals.

Embodiment

In Fig. 1, it is current oil filter.By filter case (24), supported spring (21), bypass valve block (22), case of by-pass valve (23), filter core (25), safety check (27), O-ring seal (30) etc., form oil filter.Its bypass valve is comprised of base, bypass valve block (22), the case of by-pass valve (23) of filter core (25), is arranged at filter core near supported spring (21) one sides.While assembling onboard, the bottom of bypass valve in oil filter.And bypass valve can stop up or machine oil is opened during compared with silk fabric and cold start-up at filter core.In fact at this moment oil filter filtering function had lost efficacy.Bypass valve open front filter element filtering stay the impurity of oil filter the inside much all can be in filter cleaner bottom, like this, bypass valve is opened and the impurity of staying oil filter the inside after filtering can be delivered in motor together.Particularly machine oil can often occur compared with the situation of silk fabric and cold start-up, and this just causes larger infringement to motor.

In Fig. 2, by filter case (1), supported spring (2), filter core (3), safety valve spring (11), the safe valve block of hard (52), safety check (7), thread plate (9), O-ring seal (10) etc. form oil filter.Its safety valve is that safe valve opening (6), safety valve spring (11), the safe valve block of hard (52) form by perforate on the connecting base of filter core (3) and thread plate.Namely safety valve is arranged between filter core and thread plate, i.e. the connection part of filter core and filler opening (8) and center oil outlet (4).While assembling onboard, arranged at safety valve is in the top of oil filter.When filter core stops up or machine oil during compared with silk fabric and cold start-up, the engine oil pressure before filter core can rise, reach the pressure of setting after safety valve can open, in fact at this moment oil filter filtering function had lost efficacy.Because arranged at safety valve is in the top of oil filter.After filter element filtering, stayed in the past the impurity of oil filter the inside all in the place lower than safety valve, can be because opening of safety valve sent motor to.So more safer than bypass valve, compare and more effectively protected motor with common oil filter.

In Fig. 3, by filter case (1), supported spring (2), filter core (3), soft safe valve block (51), safety check (7), thread plate (9), O-ring seal (10) etc., form oil filter.Its safety valve is that safe valve opening (6), soft safe valve block (51) form by perforate on the connecting base of filter core (3) and thread plate.Namely safety valve is arranged between filter core and thread plate, i.e. the connection part of filter core and filler opening (8) and center oil outlet (4).While assembling onboard, arranged at safety valve is in the top of oil filter.When filter core stops up or machine oil during compared with silk fabric and cold start-up, the engine oil pressure before filter core can rise, reach the pressure of setting after safety valve can open, in fact at this moment oil filter filtering function had lost efficacy.Because arranged at safety valve is in the top of oil filter.After filter element filtering, stayed in the past the impurity of oil filter the inside all in the place lower than safety valve, can be because opening of safety valve sent motor to.Compare and more effectively protected motor with common oil filter.And because safety valve can be that former filter core top has increased a cushion rubber, reduced accessory and the assembly process of former bypass valve, saved cost of material and cost of labor.Cost is lower.

Claims

1. an oil filter, is characterized in that: safety valve is arranged between filter core and thread plate, namely the connection part of filter core and filler opening and center oil outlet.

2. oil filter according to claim 1, is characterized in that: safety valve is that safe valve opening (6), safety valve spring (11), the safe valve block of hard (52) form by perforate on the connecting base of filter core (3) and thread plate.

3. oil filter according to claim 1, is characterized in that: safety valve is that safe valve opening (6), soft safe valve block (51) form by perforate on the connecting base of filter core (3) and thread plate.