CN203383959U - Supporting oil sprayer oil return device of diesel engine - Google Patents
Supporting oil sprayer oil return device of diesel engine Download PDFInfo
- Publication number
- CN203383959U CN203383959U CN201320462747.XU CN201320462747U CN203383959U CN 203383959 U CN203383959 U CN 203383959U CN 201320462747 U CN201320462747 U CN 201320462747U CN 203383959 U CN203383959 U CN 203383959U
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- oil
- sprayer
- oil sprayer
- mounting hole
- high pressure
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Abstract
Disclosed is a supporting oil sprayer oil return device of a diesel engine. A copper sleeve (7) covers the middle portion of an oil sprayer (6), a copper pad (8) is arranged on the lower portion of the oil sprayer in a sleeved mode, and the oil sprayer is vertically arranged in an oil sprayer mounting hole (D) of a cylinder cover (5). A high-pressure oil connecting pipe (4) is horizontally arranged inside a high-pressure oil connecting pipe mounting hole (G) of the cylinder cover (5), the front end of the high-pressure oil connecting pipe is connected with an oil inlet of the oil sprayer (6), and the rear end of the high-pressure oil connecting pipe stretches out of the cylinder cover (5) to be connected with a three-way connector (10). The oil sprayer mounting hole (D) and the high-pressure oil connecting pipe mounting hole (G) form an oil return cavity formed inside the cylinder cover (5). Fuel oil which is sprayed flows out from an oil return opening (H) of the oil sprayer (6), enters the oil return cavity, enters the three-way connector (10) through a three-way oil return opening (S), and then flows back to an oil tank through a fuel oil outlet (R) and an oil pipe (9). Structural design of the cylinder cover (5) is simplified, the functions of the high-pressure oil connecting pipe mounting hole (G) are expanded, interference with other parts by an oil return channel of the oil sprayer (6) is reduced, manufacturing and installing are easy, faults are reduced, and the performance of a main machine is guaranteed.
Description
Technical field
The utility model relates to the diesel engine match mechanism, relates in particular to the diesel injector oil return apparatus.
Background technique
In each modular construction of diesel engine, arranging of oil sprayer back oil road is very crucial, must guarantee that oil channel sealing is tight, if arrange unreasonablely, fuel leakage, seepage occur, the wet goods phenomenon is lubricated in the fuel oil blending, can cause engine fuel consumption high, discharge not up to standard, lubrication failure, thereby cause host performance poor, can cause the major accidents such as complete machine damage when serious.The conventional fuel injector back oil road is arranged in oil injector body inside, oil sprayer completes an oil spout, unnecessary fuel oil is back to low pressure oil way by back oil road in the body of oil sprayer and oil sprayer back leakage connection, although this circuit can be realized the oil sprayer oil return, but exist the cylinder cover structure design more complicated, the oil sprayer drainback passage can form and interfere other associated components, brings adverse effect.
The model utility content
The purpose of this utility model, just be to provide a kind of simple in structurely, and sealing is reliable, be easy to manufacturing, and diesel injector oil return apparatus easy for installation, simplify the cylinder cover structure design, reduces the interference to other parts.The oil return that guarantees oil sprayer is effective, and main frame is lubricated good, sufficient combustion, emission compliance, failure rate is low, long service life.
Task of the present utility model completes like this: design and produce a kind of matched with diesel engine oil sprayer oil return apparatus, by cylinder cap, oil sprayer, copper sheathing, copper packing, high pressure oil is taken over, tee union, seal ring coordinates the formation drainback passage, oil sprayer middle part outer cover copper sheathing, bottom suit copper packing, vertically be installed in the mounting hole of oil sprayer that top surface of cylinder cover offers, high pressure oil adapter level is installed in the high pressure oil of offering the cylinder cap side and takes in mounting hole, front end is connected with the oil inlet hole of oil sprayer, high pressure oil is taken over rear end and is exposed in the cylinder cap outside, the suit tee union, with union nut in the outer end shutoff.Tee union is provided with nipple orifice, fuel inlet, fuel outlet, offers the threeway return opening on the nipple orifice inwall, with fuel inlet and fuel outlet, is interconnected, and fuel inlet and fuel outlet are equipped with pipe joint.Installing seal ring in the hypomere of the epimere of oil sprayer, the epimere of copper sheathing, copper packing, the nipple orifice of tee union, between oil sprayer and mounting hole of oil sprayer surface of contact, tee union and high pressure oil are taken over the clearance seal between mounting hole, form the oil sprayer oil back chamber of establishing in cylinder cap.The high pressure fuel transported from high-pressure injection pump is taken over and is entered oil sprayer through high pressure oil, and after completing injection process, fuel oil flows out from the oil sprayer return opening, enters oil back chamber.Threeway return opening and oil back chamber connection due to tee union, enter tee union so enter the fuel oil of oil back chamber by the threeway return opening, and the low-voltage fuel that enters tee union with fuel inlet converges, then flows back to fuel tank by fuel outlet and oil pipe.
Implemented, tested according to technique scheme, prove of the present utility model reasonable in design, compact structure, reduced the interference of injector passages to miscellaneous part, expanded the function that the oil sprayer high pressure oil is taken over passage, simplify the structural design of cylinder cap, be easy to manufacturing, easy for installation, sealing is reliable, guarantee host performance, reduced operating cost, reduced fault, extended working life, social economic benefit are good, have good application value, reached preferably predeterminated target.
The accompanying drawing explanation
Fig. 1 is the utility model integral installation structural representation;
Fig. 2 is the structural representation of tee union 10 of the present utility model.
In figure, 1-pipe joint, 2-union nut, 3-seal ring, 4-high pressure oil is taken over, 5-cylinder cap, 6-oil sprayer, 7-copper sheathing, 8-copper packing, 9-oil pipe, 10-tee union, 11-threeway pad; D-mounting hole of oil sprayer, G-high pressure oil is taken over mounting hole, C-seal groove, H-return opening, R-fuel outlet, S-threeway return opening, K-nipple orifice, L-fixing threaded hole, J-fuel inlet.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is illustrated.
Consult Fig. 1, offer the high pressure oil of level on the cylinder cap 5 of diesel engine and take over mounting hole G and vertical mounting hole of oil sprayer D, oil sprayer 6 is installed in mounting hole of oil sprayer D, hypomere suit copper sheathing 7, bottom suit copper packing 8, setting-in O-ring seals 3 in oil sprayer 6 epimere seal groove C, the outer suit seal ring 3 of copper sheathing 7, be inlaid in the radial seal groove C offered on the mounting hole of oil sprayer D inwall of cylinder cap 5.High pressure oil 4 levels of taking over are installed in high pressure oil and take in mounting hole G, front end is connected supporting with the oil inlet hole of oil sprayer 6, the rear end of high pressure oil adapter 4 is exposed at the outside of cylinder cap 5, suit tee union 10, the fuel outlet R of tee union 10 connects high pressure oil by threeway return opening S and takes over mounting hole G, tee union 10 and high pressure oil are taken over pad dress threeway pad 11 between mounting hole G, and the nipple orifice K of tee union 10 and high pressure oil are taken over 4 joints seal ring 3 is housed, and contact gap is sealed.Fuel oil, by the return opening H on oil sprayer 6, flow to high pressure oil and takes over mounting hole G is communicated with formation oil back chamber with mounting hole of oil sprayer D, then flows into tee union 10 through threeway return opening S, by fuel outlet R and oil pipe 9, flows back to fuel tank.Owing to establishing seal ring 3 in the seal ring 3 of the seal ring 3 of oil sprayer 6 suit, copper sheathing 7 overcoats, tee union 10 and copper packing 8 overcoat seal rings 3 seal oil back chamber, fuel oil is after the return opening H of oil sprayer 6 flows out, enter the oil back chamber of sealing, flow to high pressure oil and take over mounting hole G, enter the threeway return opening S of tee union 10, then flow back to fuel tank by fuel outlet R and oil pipe 9.Oil back chamber is communicated with high pressure oil adapter mounting hole G by mounting hole of oil sprayer D and forms, and by the gap of outer end sealing, can only flow to fuel outlet R by each seal ring 3 by the threeway return opening S of tee union 10, then flow back to fuel tank through oil pipe 9.
Consult Fig. 2, tee union 10 is provided with fuel inlet J, fuel outlet R and nipple orifice K, inlet union is fitted in fuel inlet J outside, outlet connection is fitted in fuel outlet R outside, and nipple orifice K is through hole, and both sides have fixing threaded hole L, have a circle seal groove C on the inner hole wall of nipple orifice K, the inner hole wall bottom surface has threeway return opening S, and threeway return opening S is connected with fuel inlet J, fuel outlet R, then connects oil pipe 9.During assembling, tee union 10 is sleeved on high pressure oil and takes over 4 rear portion, and the rear portion of nipple orifice K and high pressure oil adapter 4 is equipped, embedded sealing ring 3 in nipple orifice K inner hole wall seal groove C.Threeway return opening S takes over mounting hole G with high pressure oil and is communicated with, and with bolt, by fixing threaded hole L, tee union 10 is installed on cylinder cap 5 outer side surfaces.Fuel inlet J is communicated with oil pipe 9 with fuel outlet R, with Injection Pump, with fuel tank, is connected.The fuel oil that enters oil back chamber enters tee union 10 by the threeway return opening S in nipple orifice K, converges with the low-voltage fuel that enters tee union 10 from fuel inlet J, then flows back to fuel tank via fuel outlet R and oil pipe 9.
According to technique scheme, implemented, proof the utility model is reasonable in design, compact structure, be easy to manufacturing, easy for installation, sealing is tight, oil return is unobstructed, safe and reliable, has effectively guaranteed the function of oil sprayer 6 drainback passages, simplify the design of cylinder cap 5, there is application value widely.
Claims (3)
1. a matched with diesel engine oil sprayer oil return apparatus, it is characterized in that by cylinder cap (5), oil sprayer (6), copper sheathing (7), copper packing (8), high pressure oil is taken over (4), tee union (10), seal ring (3) coordinates the formation drainback passage, oil sprayer (6) middle part outer cover copper sheathing (7), bottom suit copper packing (8), vertically be installed in the mounting hole of oil sprayer (D) that cylinder cap (5) end face offers, high pressure oil (4) level of taking over is installed in the high pressure oil of offering cylinder cap (5) side and takes in mounting hole (G), front end is connected with the oil inlet hole of oil sprayer (6), high pressure oil is taken over (4) rear end and is exposed in cylinder cap (5) outside, suit tee union (10), with union nut (2) in the outer end shutoff.
2. according to matched with diesel engine oil sprayer oil return apparatus claimed in claim 1, it is characterized in that described tee union (10) is provided with nipple orifice (K), fuel inlet (J), fuel outlet (R), offer threeway return opening (S) on nipple orifice (K) inwall, with fuel inlet (J) and fuel outlet (R), be interconnected, fuel inlet (J) and fuel outlet (R) are equipped with pipe joint.
3. according to matched with diesel engine oil sprayer oil return apparatus claimed in claim 1, it is characterized in that the epimere of described oil sprayer (6), the epimere of copper sheathing (7), the hypomere of copper packing (8), the interior installing of nipple orifice (K) seal ring (3) of tee union (10), between oil sprayer (6) and mounting hole of oil sprayer (D) surface of contact, tee union (10) and high pressure oil are taken over the clearance seal between mounting hole (G), form oil sprayer (6) oil back chamber of establishing in cylinder cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462747.XU CN203383959U (en) | 2013-07-31 | 2013-07-31 | Supporting oil sprayer oil return device of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462747.XU CN203383959U (en) | 2013-07-31 | 2013-07-31 | Supporting oil sprayer oil return device of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383959U true CN203383959U (en) | 2014-01-08 |
Family
ID=49872466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320462747.XU Withdrawn - After Issue CN203383959U (en) | 2013-07-31 | 2013-07-31 | Supporting oil sprayer oil return device of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352783A (en) * | 2013-07-31 | 2013-10-16 | 山东鑫亚工业股份有限公司 | Oil injector oil-return device matched with diesel engine |
-
2013
- 2013-07-31 CN CN201320462747.XU patent/CN203383959U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352783A (en) * | 2013-07-31 | 2013-10-16 | 山东鑫亚工业股份有限公司 | Oil injector oil-return device matched with diesel engine |
| CN103352783B (en) * | 2013-07-31 | 2016-09-21 | 山东科林动力科技有限公司 | A kind of matched with diesel engine oil return of oil injector device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160420 Address after: 252000 No. 1 middle Yangtze Road, Liaocheng hi tech Zone, Shandong Patentee after: Shandong Colin Power Technology Co., Ltd. Patentee after: Changzhou Yameike Mechanical Equipment Co., Ltd. Address before: 252000 No. 1 middle Yangtze Road, Liaocheng economic and Technological Development Zone, Shandong, China Patentee before: Shandong Xinya Industry Co., Ltd. Patentee before: Changzhou Yameike Mechanical Equipment Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140108 Effective date of abandoning: 20160921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |