CN201599076U - Lubricating oil pressurizing pump for diesel engine - Google Patents
Lubricating oil pressurizing pump for diesel engine Download PDFInfo
- Publication number
- CN201599076U CN201599076U CN2010201137738U CN201020113773U CN201599076U CN 201599076 U CN201599076 U CN 201599076U CN 2010201137738 U CN2010201137738 U CN 2010201137738U CN 201020113773 U CN201020113773 U CN 201020113773U CN 201599076 U CN201599076 U CN 201599076U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil cylinder
- plunger
- cylinder
- commutation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model particularly relates to a lubricating oil pressurizing pump for a diesel engine, which can be used for lubricating a needle valve couple of an oil injection nozzle and a plunger couple of an oil injection pump for various diesel engines. The lubricating oil pressurizing pump solves the problems that leakage of fuels can be incurred and the needle valve couple of the oil injection nozzle and the plunger couple of the oil injection pump can be out of function due to abrasion when the diesel engine uses such fuels with low liquid viscosity as dimethyl ether and the like. The lubricating oil pressurizing pump for the diesel engine comprises a pump body, a high-pressure oil outlet channel interface, an oil inlet channel interface and an oil return channel interface; an oil cylinder with a piston, a left high-pressure oil cylinder with a left plunger, a right high-pressure oil cylinder with a right plunger, and a reversing oil cylinder with a reversing valve are arranged in the pump body; an oil hole, a front oil guide groove and a rear oil guide groove are respectively arranged on the left plunger and the right plunger; a right oil guide groove and a left oil guide groove are arranged on the reversing valve, and communicating oil channels are respectively arranged among the oil cylinders. The lubricating oil pressurizing pump solves the problem of supplying high-pressure lubricating oil for the diesel engine due to that the diesel engine does not depend on lubrication by the fuels but adopts the high-pressure lubricating oil to lubricate the plunger couple of the oil injection pump and the needle valve couple of the oil injection nozzle.
Description
Technical field
The utility model relates to a kind of diesel lubrication oil booster pump, relates in particular to a kind of lubrication oil booster pump that is used for lubricated multiple diesel injector pintle nozzle match-ing parts and plunger and bare of injection pump.
Background technique
Diesel engine is the power on automobile and various vehicle, naval vessel, and the petroleum resources that refine diesel oil are exhausted day by day, and for this reason, countries in the world are all in the alternative fuel of seeking diesel oil.Countries in the world generally acknowledge that through development test the coal preparing dimethy ether is the clean fuel that substitutes diesel oil.But when diesel injector pintle nozzle match-ing parts and plunger and bare of injection pump work, rely on diesel fuel lubricity and sealing between needle-valve and the pintle valve seat and between plunger and the plunger bushing, (3～8Kg/ms) is little a lot, and needle-valve and pintle valve seat and plunger and plunger bushing be wear out failure, fuel leak soon because the fluid viscosity (0.15Kg/ms) of dimethyl ether is than diesel oil fluid viscosity during the diesel engine dimethyl ether fuel.This problem has hindered dimethyl ether fuel fuel on diesel engine.The way that addresses this problem both at home and abroad is to use the dimethyl ether fuel that doping improves viscosity on diesel engine, and this has not only increased fuel cost, the pollutant emission problem of bringing additive to produce in combustion process again simultaneously.Neoteric multifuel diesel Injection Pump and multifuel diesel oil sprayer high-tension lubrication oil lubrication plunger and bare of injection pump and injector nozzle matching parts, the problem of fuel feed pump plunger idol part and injector valve matching part abrasion when having solved the diesel engine dimethyl ether fuel, but the extreme pressure lubricant of micrometeor need be provided when its work continuously.Adopt " multifuel diesel machine oil suction booster " (patent No. Z L 200610048333.7) of claimant's invention to supply with extreme pressure lubricant, the commutation of the piston of the promotion plunger in the high-voltage oil cylinder of its patented product changes oil supply gallery by selector valve and realizes, and selector valve move to be to move by piston the time oil guide slot on the piston change with oil cylinder on the UNICOM of commutation oil duct realize, because the plunger and bare of injection pump of high-tension lubrication and the gap of the even part of injector valve are very little by (only 0.002～0.006mm), the oil leak amount is very little, thereby plunger and piston move very slow, oil guide slot on the piston is very slow with being communicated with of Oil Guide road, cause selector valve to move slowly, piston and plunger commutation are slowly, plunger commutation and oil suction stroke be pump oil not, exist efficient low in actual use, plunger commutation and oil-absorbing process can not be continuous, wear problems lubricant oil very easily appears for want of and in stable supply high-tension lubrication, injection pump plunger and injector valve idol part.
Summary of the invention
Technical problem to be solved in the utility model is to avoid above-mentioned " multifuel diesel suction booster " pumping extreme pressure lubricant continuously and stably, wear out failure very easily appears in injector valve idol part and plunger and bare of injection pump, the problem of fuel leak, provide a kind of energy that utilizes the low-pressure oil of low pressure lubricating oil pump or diesel engine oil duct to carry a kind of diesel lubrication oil booster pump of extreme pressure lubricant continuously to plunger coupled parts and injector nozzle matching parts, with high-tension lubrication oil lubrication injector valve and pintle valve seat and injection pump plunger and plunger bushing, thoroughly solve the problem of plunger coupled parts and pintle nozzle match-ing parts wear out failure and leakage continuously.
The technological scheme that its technical problem that solves the utility model adopts is: diesel lubrication oil booster pump, comprise the pump housing, the pump housing is provided with high pressure oil road interface, oil input channel interface and back oil road interface, it is characterized in that being provided with in the pump housing oil cylinder, left high-voltage oil cylinder, right high-voltage oil cylinder and commutation oil cylinder; Be provided with piston, piston in the oil cylinder inner chamber of oil cylinder is divided into oil cylinder left side oil pocket and the right oil pocket of oil cylinder, the less left high-voltage oil cylinder of oil cylinder left side oil pocket and relative oil cylinder cylinder diameter is connected, and the less right high-voltage oil cylinder of oil cylinder right side oil pocket and relative oil cylinder cylinder diameter is connected; A left side is provided with left plunger in the high-voltage oil cylinder, and left plunger is provided with the oil guide slot and the left plunger shaft shoulder behind oil guide slot before left plunger oilhole, the left plunger, the left plunger, and left plunger shaft shoulder both sides are connected with piston through left limit plate and left spring respectively; Be provided with right plunger in the right high-voltage oil cylinder, right plunger is provided with the oil guide slot and the right plunger shaft shoulder behind oil guide slot before right plunger oilhole, the right plunger, the right plunger, and right plunger axis both sides are connected with piston through right limit plate and right spring respectively; Be provided with selector valve in the commutation oil cylinder, selector valve is divided into commutation oil cylinder left side oil pocket and the right oil pocket of commutation oil cylinder to the commutation oil cylinder, and selector valve is provided with left oil guide slot and right oil guide slot; Be provided with left annular oil-feed tank, left annular drain pan in the high-voltage oil cylinder of a left side, be provided with right annular oil-feed tank, right annular drain pan in the right high-voltage oil cylinder; Left side high-voltage oil cavity is connected with high pressure oil road interface through left one-way valve, left high-pressure oil duct, high pressure oil road, right high-voltage oil cavity is connected with Injection Pump, oil nozzle high-tension lubrication oil pipe through right one-way valve, high pressure oil road, high pressure oil road interface, the diesel engine main oil gallery is communicated with oil input channel through the oil input channel interface, oil input channel respectively with the annular oil-feed tank in a left side, left high-voltage oil cylinder, right high-voltage oil cylinder, right annular oil-feed tank, commutation oil cylinder left side oil pocket, and the oil cylinder right side oil pocket that commutates be connected; The diesel engine back oil road is communicated with back oil road through the back oil road interface, back oil road respectively with the annular drain pan in a left side, left high-voltage oil cylinder, right high-voltage oil cylinder, right annular drain pan, commutation oil cylinder left side oil pocket, and the right oil pocket of commutation oil cylinder be connected; Commutation oil cylinder left side oil pocket is connected with left high-voltage oil cylinder, right high-voltage oil cylinder respectively through left side commutation oil duct, and the right oil pocket of commutation oil cylinder is connected with right high-voltage oil cylinder, left high-voltage oil cylinder respectively through right side commutation oil duct; Oil cylinder left side oil pocket is connected with the commutation oil cylinder through oil cylinder left side oil duct, and the right oil pocket of oil cylinder is connected with the commutation oil cylinder through the right oil duct of oil cylinder.
Selector valve is at commutation oil cylinder left side oil pocket one end, and piston is when oil pocket one end of an oil cylinder left side, and oil guide slot is communicated with oil input channel, left side commutation oil duct before the left plunger, and oil guide slot is communicated with back oil road, right commutation oil duct behind the left plunger; The right oil pocket of commutation oil cylinder oil guide slot, back oil road after oil duct, left high-voltage oil cylinder, left plunger are commutated in the right side are communicated with the back oil road interface; Oil input channel interface oil guide slot, left side commutation oil duct before oil input channel, left high-voltage oil cylinder, left plunger are communicated with commutation oil cylinder left side oil pocket.
Piston is at oil cylinder left side oil pocket one end, and selector valve is when oil pocket one end of the commutation oil cylinder right side, and the right oil pocket of oil cylinder is connected with the back oil road interface through the right oil duct of oil cylinder, commutation oil cylinder, right oil guide slot, back oil road; The oil input channel interface is connected with oil cylinder left side oil pocket through oil input channel, commutation oil cylinder, left oil guide slot, oil cylinder left side oil duct.
Selector valve is at right oil pocket one end of commutation oil cylinder, piston is connected with right plunger back-end, right plunger oilhole is between annular oil-feed tank in the right side and right annular drain pan the time, and right high-voltage oil cavity is communicated with Injection Pump, oil nozzle high-tension lubrication oil pipe through right one-way valve, high pressure oil road, high pressure oil road interface.
Selector valve is at right oil pocket one end of commutation oil cylinder, piston is at right oil pocket one end of oil cylinder, left side plunger oilhole is connected with left annular oil-feed tank, right plunger oilhole is connected with right annular drain pan, right high-voltage oil cavity is communicated with the diesel engine back oil road through right plunger oilhole, right annular drain pan, back oil road, back oil road interface, and the oil input channel interface is connected with left high-voltage oil cavity through oil input channel, left annular oil-feed tank, left plunger oilhole.
Selector valve at right oil pocket one end of commutation oil cylinder, piston at right oil pocket one end of oil cylinder, oil guide slot is connected with back oil road and left side commutation oil duct behind the right plunger, oil guide slot is connected with low pressure oil input channel and right commutation oil duct before the right plunger, a commutation oil cylinder left side oil pocket oil guide slot, back oil road after oil duct, right high-voltage oil cylinder, right plunger are commutated in a left side are communicated with the back oil road interface, and oil input channel interface oil guide slot, right commutation oil duct before oil input channel, right high-voltage oil cylinder, right plunger are connected with the right oil pocket of commutation oil cylinder.
When commutating oil cylinder left side oil pocket one end, oil cylinder left side oil pocket is communicated with the back oil road interface through oil cylinder left side oil duct, commutation oil cylinder, left oil guide slot, back oil road piston at right oil pocket one end of oil cylinder, selector valve; The oil input channel interface is communicated with the right oil pocket of oil cylinder through oil input channel, commutation oil cylinder, right oil guide slot, the right oil duct of oil cylinder.
Selector valve is connected with left plunger back-end at commutation oil pocket left side oil pocket one end, piston, left plunger oilhole is between annular oil-feed tank in a left side and left annular drain pan the time, and left high-voltage oil cavity is communicated with Injection Pump, oil nozzle high-tension lubrication oil pipe through left one-way valve, left high-pressure oil duct, high pressure oil road, high pressure oil road interface.
Selector valve is at commutation oil cylinder left side oil pocket one end, piston during at oil cylinder left side oil pocket one end, right plunger oilhole is communicated with right annular oil-feed tank, left side plunger oilhole is communicated with left annular drain pan, left side high-voltage oil cavity is communicated with the back oil road interface through left plunger oilhole, left annular drain pan, back oil road, and the oil input channel interface is communicated with right high-voltage oil cavity through low pressure oil input channel, right annular oil-feed tank, right plunger oilhole.
Selector valve is at commutation oil cylinder left side oil pocket one end, and piston is when oil pocket one end of an oil cylinder left side, and lubrication oil booster pump is got back to initial working state again, begins another work cycle.
The beneficial effects of the utility model: the utility model can be supplied with extreme pressure lubricant to the plunger and bare of injection pump and the fuel injector needle valve coupling of diesel engine continuously when diesel engine is worked, guarantee plunger coupled parts and pintle nozzle match-ing parts reliable operation, plunger and bare of injection pump and injector valve matching part abrasion Problem of Failure when having solved low fluid viscosity fuel such as diesel engine dimethyl ether fuel, make diesel engine can dimethyl ether fuel, multiple low fluid viscosity fuel such as methyl alcohol, ethanol.
Description of drawings
Fig. 1 is a kind of diesel lubrication oil booster pump piston of the present utility model at oil cylinder left side oil pocket one end, and selector valve is at the structural representation of commutation oil cylinder left side oil pocket one end
Fig. 2 is a kind of diesel lubrication oil booster pump piston of the present utility model at oil cylinder left side oil pocket one end, the structural representation of selector valve in the middle of the commutation oil cylinder
Fig. 3 is a kind of diesel lubrication oil booster pump piston of the present utility model at oil cylinder left side oil pocket one end, and selector valve is at the structural representation of right oil pocket one end of commutation oil cylinder
Fig. 4 is the structural representation of a kind of diesel lubrication oil booster pump selector valve of the present utility model at right oil pocket one end of commutation oil cylinder
Fig. 5 is that a kind of diesel lubrication oil booster pump selector valve of the present utility model is at right oil pocket one end of commutation oil pocket, the structural representation that piston is connected with right plunger
Fig. 6 is that a kind of diesel lubrication oil booster pump selector valve of the present utility model is at right oil pocket one end of commutation oil cylinder, the structural representation that right plunger oilhole is communicated with right annular drain pan
Fig. 7 is that a kind of diesel lubrication oil booster pump of the present utility model is lived selector valve at right oil pocket one end of commutation oil cylinder, the structural representation that is connected disengagement of right plunger back-end and piston
Fig. 8 is a kind of diesel lubrication oil booster pump selector valve of the present utility model at right oil pocket one end of commutation oil cylinder, and piston is at the structural representation of right oil pocket one end of oil cylinder
Fig. 9 be a kind of diesel lubrication oil booster pump piston of the present utility model at right oil pocket one end, selector valve is at the structural representation of commutation in the middle of the oil cylinder
Figure 10 be a kind of diesel lubrication oil booster pump piston of the present utility model at right oil pocket one end, selector valve is at the structural representation of commutation oil cylinder left side oil pocket one end
Figure 11 is the structural representation of a kind of diesel lubrication oil booster pump selector valve of the present utility model at commutation oil cylinder left side oil pocket one end
Figure 12 is that a kind of diesel lubrication oil booster pump selector valve of the present utility model is at commutation oil cylinder left side oil pocket one end, the structural representation that piston is connected with left plunger back-end
Figure 13 is that a kind of diesel lubrication oil booster pump selector valve of the present utility model is at commutation oil cylinder left side oil pocket one end, the structural representation that left plunger oilhole is connected with left annular drain pan
Figure 14 is a kind of diesel lubrication oil booster pump selector valve of the present utility model at commutation oil cylinder left side oil pocket one end, and piston is connected disengagement with left plunger back-end, and piston is at the structural representation of left oil pocket one end of oil cylinder
Figure 15 is a kind of diesel lubrication oil booster pump selector valve of the present utility model at commutation oil cylinder left side oil pocket one end, and piston is at the structural representation of oil cylinder left side oil pocket
Among the figure: the 1-pump housing, 2-oil cylinder, 3-oil cylinder left side oil pocket, the right oil pocket of 4-oil cylinder, the 5-oil cylinder that commutate, the left oil pocket of 6-commutation oil cylinder, the right oil pocket of 7-commutation oil cylinder, 8-left side high-voltage oil cylinder, 9-left side high-voltage oil cavity, the right high-voltage oil cylinder of 10-, the right high-voltage oil cavity of 11-, the annular oil-feed tank in a 12-left side, the annular drain pan in a 13-left side, 14-left side one-way valve, the right annular oil-feed tank of 15-, the right annular drain pan of 16-, the right one-way valve of 17-, the 18-piston, 19-left limit plate, 20-left spring, 21-right limit plate, the right spring of 22-, 23-left side plunger, 24-left side plunger oilhole, oil guide slot before the plunger of a 25-left side, oil guide slot behind the plunger of a 26-left side, the right plunger of 27-, the right plunger oilhole of 28-, oil guide slot before the right plunger of 29-, oil guide slot behind the right plunger of 30-, the 31-selector valve, 32-left side oil guide slot, the right oil guide slot of 33-, 34-left side high-pressure oil duct, 35-high pressure oil road, 36-high pressure oil road interface, 37-oil input channel interface, the 38-oil input channel, 39-back oil road interface, 40-back oil road, 41-left side commutation oil duct, the right commutation of 42-oil duct, 43-oil cylinder left side oil duct, the right oil duct of 44-oil cylinder, the 45-left side plunger shaft shoulder, 46-left side plunger back-end, the right plunger shaft shoulder of 47-, the right plunger back-end of 48-, 49-diesel engine main oil gallery, 50-diesel engine back oil road, the 51-Injection Pump, oil nozzle high-tension lubrication oil pipe
Embodiment
Lubrication oil booster pump comprises the pump housing 1, high pressure oil road interface 36, oil input channel interface 37, back oil road interface 39; Be provided with oil cylinder 2 in the pump housing, the less left high-voltage oil cylinder 8 of the cylinder diameter that is connected with oil cylinder 2 left oil pockets 3, less right high-voltage oil cylinder 10, the commutation oil cylinder 5 of the cylinder diameter that is connected with oil cylinder 2 right oil pockets 4; Be provided with piston 18, piston 18 in the oil cylinder 2 inner chamber of oil cylinder 2 is divided into oil cylinder left side oil pocket 3 and the right oil pocket 4 of oil cylinder, in left high-voltage oil cylinder 8, be provided with left plunger 23, left side plunger 23 is provided with the oil guide slot 26 and the left plunger shaft shoulder 45 behind oil guide slot 25 before the left plunger oilhole 24, left plunger, the left plunger, and the left plunger shaft shoulder 45 is connected with piston 18 through left limit plate 19 and left spring 20 respectively; In right high-voltage oil cylinder 10, be provided with right plunger 27, right plunger 27 is provided with right plunger oilhole 28, oil guide slot 29 before the right plunger, the oil guide slot 30 and the right plunger shaft shoulder 47 behind the right plunger, the right plunger shaft shoulder 47 is connected with piston 18 through right limit plate 21 and right spring 22 respectively, be provided with selector valve 31 in the commutation oil cylinder 5, selector valve 31 is divided into commutation oil cylinder left side oil pocket 6 and the right oil pocket 7 of commutation oil cylinder to the commutation oil cylinder, selector valve 31 is provided with left oil guide slot 32 and right oil guide slot 33, be provided with left annular oil-feed tank 12 in the high-voltage oil cylinder 8 of a left side, the annular drain pan 13 in a left side, be provided with right annular oil-feed tank 15 in the right high-voltage oil cylinder 10, right annular drain pan 16, left side high-voltage oil cavity 9 is through left one-way valve 14, left side high-pressure oil duct 34, high pressure oil road 35 is connected with high pressure oil road interface 36, right high-voltage oil cavity 11 is through right one-way valve 17, high pressure oil road 35, high pressure oil road interface 36 and Injection Pump, oil nozzle high-tension lubrication oil pipe 51 is connected, diesel engine main oil gallery 49 is communicated with oil input channel 38 through oil input channel interfaces 37, oil input channel 38 respectively with the annular oil-feed tank 12 in a left side, left side high-voltage oil cylinder 8, right high-voltage oil cylinder 10, right annular oil-feed tank 15 and commutation oil cylinder 5 are connected; Diesel engine back oil road 50 is communicated with back oil road 40 through back oil road interface 39, back oil road 40 is connected with the annular drain pan 13 in a left side, left high-voltage oil cylinder 8, right high-voltage oil cylinder 10, right annular drain pan 16 and commutation oil cylinder 5 respectively, commutation oil cylinder left side oil pocket 6 is connected with left high-voltage oil cylinder 8, right high-voltage oil cylinder 10 respectively through left side commutation oil duct 41, and the right oil pocket 7 of commutation oil cylinder is connected with right high-voltage oil cylinder 10, left high-voltage oil cylinder 8 respectively through right side commutation oil duct 42; Oil cylinder left side oil pocket 3 is connected with commutation oil cylinder 5 through oil cylinder left side oil duct 43, and the right oil pocket 4 of oil cylinder is connected with commutation oil cylinder 5 through the right oil duct 44 of oil cylinder.
As shown in Figure 1: the oil input channel interface 37 of the pump housing 1 is connected with diesel engine main oil gallery 49, and back oil road interface 39 is connected with the diesel engine back oil road, and high pressure oil road interface 36 links to each other with Injection Pump, oil nozzle high-tension lubrication oil pipe.
As shown in Figure 1: selector valve 31 is at commutation oil cylinder left side oil pocket 6 one ends, and piston 18 is when oil pocket 3 one ends of an oil cylinder left side, and oil guide slot 25 is communicated with oil input channel 38, left side commutation oil duct 41 before the left plunger, and oil guide slot 26 is communicated with back oil road 40, right commutation oil duct 42 behind the left plunger; The right oil pocket 7 of commutation oil cylinder oil guide slot 26, back oil road 40 behind right side commutation oil duct 42, left high-voltage oil cylinder 8, left plunger are communicated with back oil road interface 39; Oil input channel interface 37 oil guide slot 25, left side commutation oil duct 41 before oil input channel 38, left high-voltage oil cylinder 8, left plunger are communicated with commutation oil cylinder left side oil pocket 6, the low pressure lubricant oil of diesel engine main oil gallery 49 enters commutation oil cylinder left side oil pocket 6 along above-mentioned passage and promotes selector valve 31 to the right oil pocket 7 one end fast moving of commutation oil cylinder, and the lubricant oil in the right oil pocket 7 of commutation oil cylinder enters the motor back oil road from back oil road interface 39.
As shown in Figure 2: piston 18 is at oil cylinder left side oil pocket 3 one ends, it is shown in Figure 1 to continue, when the low pressure lubricant oil in the commutation oil cylinder left side oil pocket 6 promote selector valves 31 and move in the middle of the commutation oil cylinder 5, the passage of selector valve 31 blocking-up oil cylinder left side oil ducts 43 and right oil duct 44, commutation oil cylinder left side oil pocket 6 mesolow lubricant oil promote selector valve 31 to be continued to the right oil pocket 7 one end fast moving of commutation oil cylinder.
As shown in Figure 3: piston 18 is at oil cylinder left side oil pocket 3 one ends, and selector valve 31 is when oil pocket 7 one ends of the commutation oil cylinder right side, and the right oil pocket 4 of oil cylinder is connected with back oil road interface 39 through the right oil duct 44 of oil cylinder, commutation oil cylinder 5, right oil guide slot 33, back oil road 40; Diesel engine main oil gallery 49 is connected with oil cylinder left side oil pocket 3 through oil input channel interface 37, oil input channel 38, commutation oil cylinder 5, left oil guide slot 32, oil cylinder left side oil duct 43, low pressure lubricant oil in the diesel engine main oil gallery 49 enters oil cylinder left side oil pocket 3 along above-mentioned passage, the pressure of the low pressure lubricant oil in the oil cylinder left side oil pocket 3 promotes piston 18 and moves to right oil pocket 4 one ends of oil cylinder, and the lubricant oil in the right oil pocket 4 of oil cylinder is along the lubricated diesel engine back oil road 50 that enters of above-mentioned passage.
As shown in Figure 4: selector valve 31 is at right oil pocket 7 one ends of commutation oil cylinder, it is shown in Figure 3 to continue, low pressure lubricating oil pressure in the oil cylinder left side oil pocket 3 promotes piston 18 to be continued to move to right oil pocket 4 one ends of oil cylinder, piston 18 through right spring 22 promote right plunger 27 to the right high-voltage oil cavity 11 move, when right plunger oilhole 28 disconnected with being communicated with of right annular oil-feed tank 15, oil pressure in the right high-voltage oil cavity 11 raises, to the resistance of right plunger 27 elastic force greater than right spring 22, the right spring 22 of the right plunger shaft shoulder 47 compressions, right plunger 27 stops to move, piston 18 continues to move to the direction of the right oil pocket 4 of oil cylinder with right limit plate 21, the disengagement that is connected of the right plunger shaft shoulder 47 and right limit plate 21.
As shown in Figure 5: selector valve 31 is at right oil pocket 7 one ends of commutation oil cylinder, Fig. 3 continues, shown in Figure 4, piston 18 continues to move to right oil pocket 4 one ends of oil cylinder, piston 18 is connected with right plunger back-end 48, the right plunger 27 of piston 18 promotions high-voltage oil cavity 11 directions to the right moves, right plunger oilhole 28 is between annular oil-feed tank 15 in the right side and right annular drain pan 16 time, lubricating oil pressure in the right high-voltage oil cavity 11 raises, right one-way valve 17 is opened, and right high-voltage oil cavity 11 is through right one-way valve 17, high pressure oil road 35, high pressure oil road interface 36 and Injection Pump, oil nozzle high-tension lubrication oil pipe 51 is communicated with.Extreme pressure lubricant in the right high-voltage oil cavity 11 enters Injection Pump, oil nozzle high-tension lubrication oil pipe 51.
As shown in Figure 6: selector valve 31 is at right oil pocket 7 one ends of commutation oil cylinder, piston 18 is at right oil pocket 4 one ends of oil cylinder, left side plunger oilhole 24 is connected with left annular oil-feed tank 12, right plunger oilhole 28 is connected with right annular drain pan 16, right high-voltage oil cavity 11 is through right plunger oilhole 28, right annular drain pan 16, back oil road 40, back oil road interface 39 is communicated with diesel engine back oil road 50, lubricant oil in the right high-voltage oil cavity 11 leaks into back oil road 40, oil pressure in the right high-voltage oil cavity 11 descends rapidly, right one-way valve 17 is closed, and right spring 22 promotes right plunger 27 high-voltage oil cavity 11 1 end fast moving to the right; Oil input channel interface 37 is connected with left high-voltage oil cavity 9 through oil input channel 38, left annular oil-feed tank 12, left plunger oilhole 24, and the lubricant oil in the diesel engine main oil gallery enters left high-voltage oil cavity 9.
As shown in Figure 7: selector valve 31 is at right oil pocket 7 one ends of commutation oil cylinder, piston 18 is at right oil pocket 4 one ends of oil cylinder, when right plunger oilhole 28 is connected with right annular drain pan 16, it is shown in Figure 6 to continue, the disengagement that is connected of right plunger back-end 48 and piston 18, the right plunger 27 of right spring 22 promotions is high-voltage oil cavity 11 1 end fast moving to the right.
As shown in Figure 8: selector valve 31 is at right oil pocket 7 one ends of commutation oil cylinder, piston 18 is at right oil pocket 4 one ends of oil cylinder, continue the right plunger shaft shoulder 47 shown in Figure 7 respectively when right spring 22 and right limit plate 21 are connected with piston 18, oil guide slot 30 is connected with back oil road 40 and left side commutation oil duct 41 behind the right plunger, oil guide slot 29 is connected with low pressure oil input channel 38 and right commutation oil duct 42 before the right plunger, commutation oil cylinder left side oil pocket 6 is through left side commutation oil duct 41, right high-voltage oil cylinder 10, oil guide slot 30 behind the right plunger, back oil road 40 is communicated with back oil road interface 39, oil input channel interface 37 is through oil input channel 38, right high-voltage oil cylinder 10, oil guide slot 29 before the right plunger, right commutation oil duct 42 is connected with the right oil pocket 7 of commutation oil cylinder, low pressure lubricant oil in the diesel engine main oil gallery 49 enters the right oil pocket 7 of commutation oil cylinder along above-mentioned passage and promotes selector valve 31 to commutation oil cylinder left side oil pocket 6 one end fast moving, and the lubricant oil in the oil pocket 6 of a commutation oil cylinder left side enters diesel engine back oil road 50.
As shown in Figure 9: it is shown in Figure 8 to continue, selector valve 31 is in the middle of commutation oil cylinder 5, the passage of selector valve 31 blocking-up oil cylinder left side oil ducts 43 and the right oil duct 44 of oil cylinder, piston 18 transfixions, the low pressure lubricant oil in the right oil pocket 7 that commutates promote selector valve 31 and continue fast to commutation oil cylinder left side oil pocket 6 one end fast moving.
As shown in figure 10: when commutating oil cylinder left side oil pocket 6 one ends, oil cylinder left side oil pocket 3 is communicated with back oil road interface 39 through oil cylinder left side oil duct 43, commutation oil cylinder 5, left oil guide slot 32, back oil road 40 piston 18 at right oil pocket 4 one ends of oil cylinder, selector valve 31; Oil input channel interface 37 is communicated with the right oil pocket 4 of oil cylinder through oil input channel 38, commutation oil cylinder 5, right oil guide slot 33, the right oil duct 44 of oil cylinder.Low pressure lubricant oil in the diesel engine main oil gallery 49 enters the right oil pocket 4 promotion pistons 18 of oil cylinder along above-mentioned passage and moves to oil cylinder left side oil pocket 3 one ends, and the lubricant oil in the oil pocket 3 of an oil cylinder left side enters diesel engine back oil road 50.
As shown in figure 11: selector valve 31 is at commutation oil cylinder left side oil pocket 6 one ends, it is shown in Figure 10 to continue, piston 18 from oil cylinder right oil pocket 4 one ends to oil cylinder left side oil pocket 3 one ends move continuously, piston 18 through left spring 20 promote left plunger 23 left high-voltage oil cavity 9 one ends move, when left side plunger oilhole 24 disconnected with being communicated with of left annular oil-feed tank 12, oil pressure raises in the high-voltage oil cavity 9 of a left side, to the resistance of left plunger 23 during greater than the elastic force of left spring 20, the left side plunger shaft shoulder 45 compression left springs 20, left side plunger 23 stops to move, piston 18 continues to move to oil cylinder left side oil pocket 3 one ends with left limit plate 19, the disengagement that is connected of left limit plate 19 and the left plunger shaft shoulder 45.
As shown in figure 12: selector valve 31 is connected with left plunger back-end 46 at commutation oil pocket left side oil pocket 6 one ends, piston 18, left plunger oilhole 24 is between annular oil-feed tank 12 in a left side and left annular drain pan 13 time, the left plunger 23 of piston 18 promotions high-voltage oil cavity 9 one ends left moves, oil pressure raises in the high-voltage oil cavity 9 of a left side, left side one-way valve 14 is opened, and left high-voltage oil cavity 9 is communicated with Injection Pump, oil nozzle high-tension lubrication oil pipe 51 through left one-way valve 14, left high-pressure oil duct 34, high pressure oil road 35, high pressure oil road interface 36.Extreme pressure lubricant in the high-voltage oil cavity 9 of a left side enters Injection Pump, oil nozzle high-tension lubrication oil pipe 51.
As shown in figure 13: selector valve 31 is at commutation oil cylinder left side oil pocket 6 one ends, piston 18 is when oil pocket 3 one ends of an oil cylinder left side, right plunger oilhole 28 is communicated with right annular oil-feed tank 15, left side plunger oilhole 24 is communicated with left annular drain pan 13, left side high-voltage oil cavity 9 is through left plunger oilhole 24, the annular drain pan 13 in a left side, back oil road 40 is communicated with back oil road interface 39, lubricant oil leaks into diesel engine back oil road 50 in the high-voltage oil cavity 9 of a left side, oil pressure descends rapidly, left side one-way valve 14 is closed, left spring 20 promotes left plunger 23 high-voltage oil cavity 9 one end fast moving left, oil input channel interface 37 is through low pressure oil input channel 38, right annular oil-feed tank 15, right plunger oilhole 28 is communicated with right high-voltage oil cavity 11, and the low pressure lubricant oil in the diesel engine main oil gallery 49 enters right high-voltage oil cavity 11.
As shown in figure 14: selector valve 31 is at commutation oil cylinder left side oil pocket 6 one ends, when piston 18 is communicated with left annular drain pan 13 at oil cylinder chamber 3 one ends, left plunger oilhole 24, it is shown in Figure 13 to continue, the disengagement that is connected of a left side plunger back-end 48 and piston 18, the left plunger 23 of left spring 20 promotions is high-voltage oil cavity 9 one end fast moving left.
As shown in figure 15: selector valve 31 is at commutation oil cylinder left side oil pocket 6 one ends, piston 18 is at oil cylinder left side oil pocket 3 one ends, it is shown in Figure 14 to continue, when left spring 20 promotes left plunger 23 high-voltage oil cavity 9 one end fast moving to the left plunger shaft shoulder 45 is connected with left limit plate 19 left, lubrication oil booster pump has arrived the initial working state that Fig. 1 shows again, begins another work cycle.
Claims (1)
1. diesel lubrication oil booster pump, comprise the pump housing (1), the pump housing (1) is provided with high pressure oil road interface (36), oil input channel interface (37) and back oil road interface (39), it is characterized in that being provided with in the pump housing (1) oil cylinder (2), left high-voltage oil cylinder (8), right high-voltage oil cylinder (10) and commutation oil cylinder (5);
Be provided with piston (18), piston (18) in the oil cylinder (2) inner chamber of oil cylinder (2) is divided into oil cylinder left side oil pocket (3) and the right oil pocket (4) of oil cylinder, the less left high-voltage oil cylinder (8) of oil cylinder left side oil pocket (3) and relative oil cylinder (2) cylinder diameter is connected, and the less right high-voltage oil cylinder (10) of oil cylinder right side oil pocket (4) and relative oil cylinder (2) cylinder diameter is connected;
Be provided with left plunger (23) in the left side high-voltage oil cylinder (8), left side plunger (23) is provided with the oil guide slot (26) and the left plunger shaft shoulder (45) behind oil guide slot (25) before the left plunger oilhole (24), left plunger, the left plunger, and the left plunger shaft shoulder (45) both sides pass through left limit plate (19) respectively and left spring (20) is connected with piston (18);
Be provided with right plunger (27) in the right high-voltage oil cylinder (10), right plunger (27) is provided with the oil guide slot (30) and the right plunger shaft shoulder (47) behind oil guide slot (29) before right plunger oilhole (28), the right plunger, the right plunger, and the right plunger shaft shoulder (47) both sides are connected with piston (18) through right limit plate (21) and right spring (22) respectively;
Be provided with selector valve (31) in the commutation oil cylinder (5), selector valve (31) is divided into commutation oil cylinder left side oil pocket (6) and the right oil pocket (7) of commutation oil cylinder to the commutation oil cylinder, and selector valve (31) is provided with left oil guide slot (32) and right oil guide slot (33);
Be provided with left annular oil-feed tank (12), left annular drain pan (13) in the left side high-voltage oil cylinder (8), be provided with right annular oil-feed tank (15), right annular drain pan (16) in the right high-voltage oil cylinder (10);
Left side high-voltage oil cavity (9) is connected with high pressure oil road interface (36) through left one-way valve (14), left high-pressure oil duct (34), high pressure oil road (35), right high-voltage oil cavity (11) is connected with Injection Pump, oil nozzle high-tension lubrication oil pipe (51) through right one-way valve (17), high pressure oil road (35), high pressure oil road interface (36)
Diesel engine main oil gallery (49) is communicated with oil input channel (38) through oil input channel interface (37), oil input channel (38) respectively with the annular oil-feed tank in a left side (12), left high-voltage oil cylinder (8), right high-voltage oil cylinder (10), right annular oil-feed tank (15), commutation oil cylinder left side oil pocket (6), and the oil cylinder right side oil pocket (7) that commutates be connected;
Diesel engine back oil road (50) is communicated with back oil road (40) through back oil road interface (39), back oil road (40) respectively with the annular drain pan in a left side (13), left high-voltage oil cylinder (8), right high-voltage oil cylinder (10), right annular drain pan (16), commutation oil cylinder left side oil pocket (6), and the commutation right oil pocket of oil cylinder (7) be connected;
Commutation oil cylinder left side oil pocket (6) is connected with left high-voltage oil cylinder (8), right high-voltage oil cylinder (10) respectively through left side commutation oil duct (41), and the commutation right oil pocket of oil cylinder (7) is connected with right high-voltage oil cylinder (10), left high-voltage oil cylinder (8) respectively through right side commutation oil duct (42); Oil cylinder left side oil pocket (3) is connected with commutation oil cylinder (5) through oil cylinder left side oil duct (43), and the right oil pocket of oil cylinder (4) is connected with commutation oil cylinder (5) through the right oil duct of oil cylinder (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201137738U CN201599076U (en) | 2010-02-05 | 2010-02-05 | Lubricating oil pressurizing pump for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201137738U CN201599076U (en) | 2010-02-05 | 2010-02-05 | Lubricating oil pressurizing pump for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599076U true CN201599076U (en) | 2010-10-06 |
Family
ID=42810130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201137738U Expired - Lifetime CN201599076U (en) | 2010-02-05 | 2010-02-05 | Lubricating oil pressurizing pump for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776002B (en) * | 2010-02-05 | 2011-09-21 | 郑国璋 | Diesel lubrication oil booster pump |
| CN103016698A (en) * | 2012-12-10 | 2013-04-03 | 中国船舶重工集团公司第七〇五研究所 | High-speed heavy load motive power transmission lubrication supply device applicable to underwater vehicle |
-
2010
- 2010-02-05 CN CN2010201137738U patent/CN201599076U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776002B (en) * | 2010-02-05 | 2011-09-21 | 郑国璋 | Diesel lubrication oil booster pump |
| CN103016698A (en) * | 2012-12-10 | 2013-04-03 | 中国船舶重工集团公司第七〇五研究所 | High-speed heavy load motive power transmission lubrication supply device applicable to underwater vehicle |
| CN103016698B (en) * | 2012-12-10 | 2016-03-02 | 中国船舶重工集团公司第七〇五研究所 | A kind of high-speed overload power transmission lubrication feeding mechanism being applicable to submarine navigation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202301001U (en) | Sealing and lubricating structure of plunger of ultrahigh-pressure plunger pump | |
| CN200943554Y (en) | Multiple fuel diesel engine fuel injection pump | |
| CN201851248U (en) | High-pressure fuel pump | |
| CN101968017B (en) | Low pressure difference hydraulic sealing type high-pressure common-rail fuel pump | |
| CN110748446A (en) | Common rail high-pressure oil inlet and outlet valve assembly and common rail high-pressure oil supply pump | |
| CN102287367B (en) | Sealing lubrication structure for plunger of ultrahigh pressure plunger pump | |
| CN201599076U (en) | Lubricating oil pressurizing pump for diesel engine | |
| CN201851241U (en) | High-pressure fuel oil pump | |
| CN102536568A (en) | In-line diaphragm-type pressurizing pump for dimethyl-ether engine | |
| CN102322378B (en) | Low-viscosity fuel injector of diesel engine | |
| JP5852561B2 (en) | Lubricating oil pump, cylinder lubricating system, and internal combustion engine | |
| CN201810438U (en) | Constant-pressure oil injection pump of diesel | |
| CN103993999A (en) | High-pressure oil pump for heavy-duty diesel engine | |
| CN101776002B (en) | Diesel lubrication oil booster pump | |
| CN108533430A (en) | A kind of diesel engine super-pressure vehicle fuel pump structure | |
| CN109209713B (en) | Plunger device and internal combustion engine | |
| CN107956617A (en) | The fuel injection system of internal combustion engine | |
| CN201818412U (en) | Low pressure difference hydraulic sealing high pressure co-rail fuel pump | |
| CN107956618A (en) | Internal combustion engine | |
| CN103161634B (en) | Fuel pump for a large turbocharged two-stroke diesel engine | |
| CN202580555U (en) | Lubrication system and construction machinery | |
| CN112523909B (en) | Isobaric injection pump of high-speed machine | |
| CN100445519C (en) | Engine oil booster pump for diesel engine with pluralities of fuel | |
| KR20080020452A (en) | Piston pump with deposition protection | |
| CN205078519U (en) | Oil drives pressurized cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101006 Effective date of abandoning: 20110921 |