阅读说明：本技术 一种马鞍形油箱双油泵供油系统 (Double-oil-pump oil supply system of saddle-shaped oil tank ) 是由 郭晓强 纪英 田尚琨 杨旭光 赵龙慧 于 2019-09-12 设计创作，主要内容包括：本发明属于汽车技术领域,公开了一种马鞍形油箱双油泵供油系统,马鞍形油箱包括主油室和副油室,主油室内设置与主油室连通的储油桶,储油桶内设有多个相互独立的油泵,油泵被配置为能够将储油桶中的燃油吸至发动机中,油泵的下游设有回油管路,储油桶内设有与回油管路连通的副油室吸油引射阀,副油室吸油引射阀上连通有引至副油室的副油室吸油管,用于将副油室的燃油吸至储油桶中。储油桶内还设有与回油管路连通的主油室吸油引射阀,用于将主油室的燃油吸至储油桶中。本发明的有益效果：降低对单个油泵的最小功率要求,减小泵芯尺寸,以能够更容易地对油泵进行布置。同时油泵工作更加安全可靠,没有被烧蚀的风险。(The invention belongs to the technical field of automobiles, and discloses a saddle-shaped oil tank double-oil-pump oil supply system, which comprises a main oil chamber and an auxiliary oil chamber, wherein an oil storage barrel communicated with the main oil chamber is arranged in the main oil chamber, a plurality of mutually independent oil pumps are arranged in the oil storage barrel, the oil pumps are configured to suck fuel oil in the oil storage barrel into an engine, an oil return pipeline is arranged at the downstream of each oil pump, an auxiliary oil chamber oil suction injection valve communicated with the oil return pipeline is arranged in the oil storage barrel, and an auxiliary oil chamber oil suction pipe led to the auxiliary oil chamber is communicated with the auxiliary oil chamber oil suction injection valve and is used for sucking the fuel oil in the auxiliary oil chamber into the oil storage. The oil storage barrel is also internally provided with a main oil chamber oil absorption injection valve communicated with the oil return pipeline and used for absorbing fuel oil of the main oil chamber into the oil storage barrel. The invention has the beneficial effects that: the minimum power requirement for a single oil pump is reduced, and the pump core size is reduced, so that the oil pump can be arranged more easily. Meanwhile, the oil pump works more safely and reliably without the risk of ablation.)

1. A double-oil pump oil supply system of a saddle-shaped oil tank comprises a saddle-shaped oil tank shell (19), a main oil chamber (22) and an auxiliary oil chamber (21) which are communicated with each other above a saddle surface are formed in the fuel tank shell (19), it is characterized in that an oil storage barrel (13) communicated with the main oil chamber (22) is arranged in the main oil chamber (22), a plurality of mutually independent oil pumps are arranged in the oil storage barrel (13), the oil pumps are configured to be capable of sucking fuel oil in the oil storage barrel (13) into an engine, an oil return pipeline is arranged at the downstream of the oil pump, an auxiliary oil chamber oil absorption injection valve (7) communicated with the oil return pipeline is arranged in the oil storage barrel (13), an auxiliary oil chamber oil suction pipe (15) leading to the auxiliary oil chamber (21) is communicated with the auxiliary oil chamber oil suction injection valve (7), for sucking fuel of the secondary fuel chamber (21) into the reserve tank (13).

2. The dual oil pump oil supply system of the saddle-shaped oil tank of claim 1,

the oil storage bucket (13) bottom still is equipped with coarse strainer (8), and is a plurality of the oil feed end of oil pump all causes on coarse strainer (8).

3. The dual oil pump oil supply system of the saddle-shaped oil tank of claim 1,

the oil pump low reaches are equipped with oil return tee bend (3) and a plurality of tee bend (4) that produce oil, by a plurality of the fuel that the oil pump was pumped is through a plurality of series connection the tee bend that produces oil (4) are collected and are introduced after the oil return tee bend (3) are in, return oil pipe way certainly the bypass pipe of oil return tee bend (3) is drawn forth.

4. The dual oil pump oil supply system of claim 3,

the number of the oil pumps is two, and the number of the oil outlet tee joint (4) is one.

5. The dual oil pump oil supply system of the saddle-shaped oil tank of claim 1,

the oil tank is characterized in that a main oil pump flange (1) is arranged on the outer wall of the main oil chamber (22), and the upper part of the oil storage barrel (13) is fixed on the main oil pump flange (1) through an oil storage barrel fixing structure (14).

6. The dual oil pump oil supply system of the saddle-shaped oil tank according to claim 1 or 3,

and a main oil chamber oil absorption injection valve (9) communicated with the oil return pipeline is further arranged in the oil storage barrel (13), wherein the injection end of the main oil chamber oil absorption injection valve (9) is communicated with the outside of the oil storage barrel (13).

7. The dual oil pump oil supply system of claim 3,

the downstream of the main through pipe of the oil return tee joint (3) is also provided with a fuel filter belt pressure regulating valve assembly (2), and the fuel filter belt pressure regulating valve assembly (2) is arranged outside the main oil chamber (22).

8. The dual oil pump oil supply system of the saddle-shaped oil tank of claim 1,

a main oil chamber floater structure (12) is arranged in the main oil chamber (22).

9. The dual oil pump oil supply system of the saddle-shaped oil tank of claim 1,

an auxiliary oil chamber floater structure (18) is arranged in the auxiliary oil chamber (21).

10. The dual oil pump oil supply system of the saddle-shaped oil tank of claim 1,

an umbrella valve (10) communicated with the main oil chamber (22) is arranged at the bottom of the oil storage barrel (13).

Technical Field

The invention relates to the technical field of automobiles, in particular to a saddle-shaped oil tank double-oil pump oil supply system.

Background

The traditional oil supply system matched with the saddle-shaped oil tank usually adopts a mode of supplying oil to an engine by a single oil pump, but aiming at the conditions of large discharge capacity and high oil consumption, in order to meet the requirement of high oil consumption of the engine, a large-flow fuel pump must be selected, and the oil pump has the defects of very few resources, very high cost, large working noise, poor reliability, short service life and the like.

Disclosure of Invention

The invention aims to provide a saddle-shaped oil tank double-oil pump oil supply system to solve the problems of high discharge capacity, high oil consumption, four-wheel drive or rear drive (saddle-shaped oil tank) type oil supply stability of an oil pump and the working reliability of the oil pump.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a two oil pump oil feeding system of shape of a saddle oil tank, includes the shape of a saddle fuel tank casing, the inside main grease chamber and the vice grease chamber that communicates each other more than the saddle face that forms of fuel tank casing, the indoor setting of main grease with the oil storage bucket of main grease chamber intercommunication, be equipped with a plurality of mutually independent oil pumps in the oil storage bucket, the oil pump is configured to can with fuel in the oil storage bucket is inhaled to the engine in, the low reaches of oil pump are equipped with back oil pipe, be equipped with in the oil storage bucket with the vice grease chamber oil absorption of returning oil pipe intercommunication draws the valve, the intercommunication has and causes on the vice grease chamber oil absorption draws the valve the vice grease chamber oil absorption pipe of vice grease chamber for with the fuel of vice grease chamber is inhaled extremely in the oil storage bucket.

Preferably, the oil storage barrel bottom still is equipped with the coarse strainer, and is a plurality of the oil feed end of oil pump all leads to on the coarse strainer.

Preferably, the oil pump low reaches are equipped with oil return tee bend and a plurality of oil outlet tee bend, by a plurality of the fuel that the oil pump was pumped is drawn into after a plurality of series connection the oil outlet tee bend is assembled in the oil return tee bend, return oil pipe way certainly the bypass pipe of oil return tee bend is drawn forth and is formed.

Preferably, the number of the oil pumps is two, and the number of the oil outlet tee joint is one.

Preferably, be equipped with the main oil pump flange on the main oil chamber outer wall, oil storage bucket upper portion is fixed through oil storage bucket fixed knot structure on the main oil pump flange.

Preferably, a main oil chamber oil suction injection valve communicated with the oil return pipeline is further arranged in the oil storage barrel, wherein an injection end of the main oil chamber oil suction injection valve is communicated with the outside of the oil storage barrel.

Preferably, a fuel filter belt pressure regulating valve assembly is further arranged at the downstream of the main through pipe of the oil return tee joint and is arranged outside the main oil chamber.

Preferably, a main oil chamber float structure is arranged in the main oil chamber.

Preferably, an auxiliary oil chamber float structure is provided in the auxiliary oil chamber.

Preferably, an umbrella valve communicated with the main oil chamber is arranged at the bottom of the oil storage barrel.

The invention has the beneficial effects that: by placing a plurality of conventional flow rate oil pumps in one oil storage barrel and installing them in the main oil chamber of the oil tank, the minimum power requirement for a single oil pump is reduced, and the size of the pump core is reduced, so that the oil pumps can be more easily arranged. Meanwhile, the oil pump adopts an active driving mode to respectively inject fuel oil in the main oil chamber and the auxiliary oil chamber into the oil storage barrel, so that the oil pump can absorb enough fuel oil from the oil storage barrel to supply to an engine, the oil pump works more safely and reliably, and the risk of ablation is avoided.

Drawings

FIG. 1 is a schematic structural diagram of an oil supply system of a saddle-shaped oil tank dual-oil pump in the embodiment of the invention.

In the figure:

1. a main oil pump flange; 2. a fuel filter belt pressure regulating valve assembly; 3. an oil return tee joint; 4. an oil outlet tee joint; 5. actively driving the tee joint; 6. a second oil pump; 7. the auxiliary oil chamber absorbs oil and injects the valve; 8. coarse filtration; 9. the main oil chamber absorbs oil and injects the valve; 10. an umbrella valve; 11. a first oil pump; 12. a main oil chamber float structure; 13. an oil storage barrel; 14. the oil storage barrel is fixed on the structure; 15. an oil suction pipe of the auxiliary oil chamber; 16. an auxiliary oil chamber flange; 17. an auxiliary oil chamber fixing structure; 18. an auxiliary oil chamber float structure; 19. a fuel tank housing; 20. an oil suction port of the auxiliary oil chamber; 21. an auxiliary oil chamber; 22. a main oil chamber.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the invention provides a double-oil-pump oil supply system of a saddle-shaped oil tank, which comprises a saddle-shaped oil tank shell 19, wherein a main oil chamber 22 and an auxiliary oil chamber 21 which are communicated with each other are formed in the oil tank shell 19 above a saddle surface, an oil storage barrel 13 is arranged in the main oil chamber 22, the upper part and the bottom of the oil storage barrel 13 are communicated with the main oil chamber 22, a plurality of mutually independent oil pumps are arranged in the oil storage barrel 13, the oil pumps are configured to pump fuel oil in the oil storage barrel 13 into an engine, an oil return pipeline is arranged at the downstream of the oil pumps, an auxiliary oil chamber oil suction injection valve 7 communicated with the oil return pipeline is arranged in the oil storage barrel 13, and an auxiliary oil chamber oil suction pipe 15 communicated with the auxiliary oil chamber 21 is communicated with the auxiliary oil suction valve 7 and used for sucking.

According to the saddle-shaped oil tank double-oil-pump oil supply system, fuel oil in the auxiliary oil chamber 21 is sucked into the oil storage barrel 13 communicated with the main oil chamber 22, and the oil pumps are all arranged to pump the fuel oil from the oil storage barrel 13, so that the risk that an oil pump motor is burnt due to the fact that the oil pump cannot pump enough fuel oil when more fuel oil in the main oil chamber and the auxiliary oil chamber is left is avoided.

The top of the main oil chamber 22 is provided with a main oil pump flange 1, the lower part of the main oil pump flange 1 is fixed with an oil storage barrel fixing structure 14, the upper end of the oil storage barrel 13 is arranged on the oil storage barrel fixing structure 14, and the bottom of the oil storage barrel 13 is communicated with the main oil chamber 22 through an umbrella valve 10. The height and installation height of the oil storage barrel 13 are determined according to the shape and size of the main oil chamber 22, and in particular, the inner bottom of the oil storage barrel 13 is ensured to be slightly higher than the bottom of the main oil chamber 22, so that the fuel in the main oil chamber 22 can be fully used. By providing the oil reserve tank 13, it is possible to prevent the occurrence of the situation where the oil pump fails to suck the oil in the case where the fuel flows to the lower side of the main oil chamber 22 when the main oil chamber 22 has a small amount of oil or/and the vehicle is inclined.

The bottom of oil storage bucket 13 sets up coarse strainer 8, and the oil feed end of a plurality of oil pumps all leads to on coarse strainer 8, and the fuel in oil storage bucket 13 is inhaled by the oil pump after coarse strainer 8 filters, adopts a coarse strainer 8 of a plurality of oil pumps sharing can simplify the structure, conveniently arrange, reduce cost.

The downstream of a plurality of oil pumps is provided with an oil return tee joint 3 and a plurality of oil outlet tee joints 4, the fuel oil pumped by the oil pumps is collected by the oil outlet tee joints 4 connected in series and then is led into the oil return tee joint 3, and an oil return pipeline is led out from a bypass pipe of the oil return tee joint 3 and led into an oil storage barrel 13.

In order to reduce the requirement on the flow value of the oil pump and simultaneously meet the oil consumption requirement of the engine, the number of the oil pumps is two or more, and in the embodiment, the number of the oil pumps is two and is respectively the first oil pump 11 and the second oil pump 6 from the viewpoint of saving cost and conveniently arranging the oil pumps. Correspondingly, only one oil outlet tee joint 4 is needed, and the fuel oil pumped by the first oil pump 11 and the second oil pump 6 is collected by the oil outlet tee joint 4 and then is introduced into the oil return tee joint 3.

The oil storage barrel 13 is also internally provided with a main oil chamber oil absorption injection valve 9 communicated with the oil return pipeline, and the injection end of the main oil chamber oil absorption injection valve 9 is led out from the bottom of the oil storage barrel 13 and communicated with a main oil chamber 22, so that fuel oil is absorbed into the oil storage barrel 13 from the main oil chamber 22 under the siphon action. Specifically, the oil return pipeline is led out from a bypass pipe of the oil return tee joint 3 and then enters the active driving tee joint 5, and is shunted by the active driving tee joint 5 to form two return channels. One return passage is communicated with the oil suction injection valve 7 of the auxiliary oil chamber and is used for sucking the fuel oil in the auxiliary oil chamber 21 into the oil storage barrel 13 through the siphon action; the other oil return channel is communicated with the main oil chamber oil suction injection valve 9 and is used for sucking the fuel oil from the main oil chamber 22 to the oil storage barrel 13. Through making first oil pump 11, the sharing of second oil pump 6 main oil room oil absorption injection valve 9 and vice grease chamber oil absorption injection valve 7, have simple structure, occupation space is little, the advantage of arranging more easily.

And a fuel oil filtering belt pressure regulating valve assembly 2 is also arranged at the downstream of the main pipe of the oil return tee joint 3 and is used for regulating and filtering fuel oil, the fuel oil after pressure regulating and filtering flows to an engine, and redundant fuel oil flows back to the oil storage barrel 13 through an overflow pipe. In order to reduce the space in the oil storage barrel 13 and ensure that the double oil pumps are easier to arrange, and thus the oil storage barrel 13 is designed to be smaller and more convenient to assemble, the fuel filter belt pressure regulating valve assembly 2 is arranged outside the main oil chamber 22.

In this embodiment, the top of the auxiliary oil chamber 21 is provided with an auxiliary oil chamber flange 16, the bottom of the auxiliary oil chamber 21 is provided with an auxiliary oil chamber oil suction port 20, and an auxiliary oil chamber fixing structure 17 is connected between the auxiliary oil chamber flange 16 and the auxiliary oil chamber oil suction port 20, wherein a spring structure is arranged at the joint of the auxiliary oil chamber fixing structure 17 and the auxiliary oil chamber oil suction port 20, and the auxiliary oil chamber oil suction port 20 is ensured to be pressed on the lower bottom surface of the fuel tank shell 19 all the time by the arrangement of the spring structure, so that fuel oil in the auxiliary oil chamber 21 can be completely used. Obviously, in other embodiments, the spring structure may be disposed inside the auxiliary oil chamber fixing structure 17, at the joint between the auxiliary oil chamber fixing structure 17 and the auxiliary oil chamber flange 16, and the like, as long as it is ensured that the oil suction port can be always pressed against the lower bottom surface of the fuel tank shell 19 under the action of the elastic force.

In order to facilitate understanding of fuel consumption in the main oil chamber 22 and the auxiliary oil chamber 21, the main oil chamber float structure 12 is provided in the main oil chamber 22, and the auxiliary oil chamber float structure 18 is provided in the auxiliary oil chamber 21. Specifically, the main oil chamber float structure 12 may be connected to an outer wall of the oil storage barrel 13, and the auxiliary oil chamber float structure 18 is connected to the auxiliary oil chamber fixing structure 17.

In this embodiment, the bottom of the oil storage barrel 13 is further provided with an umbrella valve 10 which can be communicated with the main oil chamber 22, and the umbrella valve 10 only allows fuel to flow in a single direction, namely, fuel is allowed to flow into the oil storage barrel 13 from the main oil chamber 22 through the umbrella valve 10, and fuel is not allowed to flow into the main oil chamber 22 from the oil storage barrel 13 through the umbrella valve 10. By adopting the umbrella valve 10, when the fuel liquid level of the main oil chamber 22 is higher than the fuel liquid level in the oil storage barrel 13, the passage of the fuel into the oil storage barrel 13 can be increased, so that the fuel in the oil storage barrel 13 can be quickly supplemented.

The working principle of the present embodiment is explained as follows:

by reasonably setting the pipe diameters of the oil return tee joint 3, the active driving tee joint 5 and the oil suction injection valve 7 of the auxiliary oil chamber, the fuel quantity sucked into the main oil chamber 22 from the auxiliary oil chamber 21 is ensured to be larger than the average fuel consumption output to an engine from the main oil chamber 22, so that the fuel in the main oil chamber 22 is more and more, and the fuel in the auxiliary oil chamber 21 is less and more. When the fuel in the main fuel chamber 22 exceeds the highest point of the saddle-shaped inner bottom plate of the saddle-shaped fuel tank, the fuel overflows from the main fuel chamber 22 to the auxiliary fuel chamber 21, thus ensuring that the fuel in the auxiliary fuel chamber 21 is consumed firstly.

If the flow of the two pump cores meets and is larger than the design flow requirement, but when the actual flow values of the pump cores have certain difference, the fuel quantity sucked into the oil storage barrel 13 from the auxiliary oil chamber oil suction injection valve 7 and the main oil chamber oil suction injection valve 9 is more, so that a more sufficient fuel oil supply pump can be provided, the oil pump can be cooled better, the consumption mode of the fuel oil in the oil tank can not be changed, namely the fuel oil in the auxiliary oil chamber 21 is still consumed at first. The two oil pumps can always suck enough fuel oil to supply the fuel oil to the engine, so that the fuel consumption requirement of the engine is met, and meanwhile, the two oil pumps are not in ablation risk.

With the gradual consumption of the fuel, the fuel in the auxiliary fuel chamber 21 is consumed empty firstly, the oil suction injection valve 7 in the auxiliary fuel chamber cannot suck the fuel from the auxiliary fuel chamber 21 any more, and then the fuel in the main fuel chamber 22 starts to be consumed. The fuel in the main oil chamber 22 flows into the oil storage barrel 13 through the one-way umbrella valve 10 at the bottom of the oil storage barrel 13, and the main oil chamber oil suction injection valve 9 sucks the fuel in the main oil chamber 22 into the oil storage barrel 13 by using a siphon effect. The sum of the fuel quantity sucked from the main oil chamber oil suction injection valve 9, the fuel quantity flowing into the oil storage barrel 13 from the one-way umbrella valve 10 and the fuel quantity flowing into the oil storage barrel 13 from the fuel filter belt pressure regulating valve assembly 2 is ensured to meet the oil consumption requirement of the engine, and the double fuel pumps are ensured to suck enough fuel and supply the fuel to the engine without the risk of ablation.

In summary, the present invention reduces the minimum power requirement for a single oil pump and reduces the pump core size by placing a plurality of oil pumps of conventional flow rate in one oil storage barrel 13 and installing them in the main oil chamber 22 of the oil tank, so that the oil pumps can be more easily arranged. Meanwhile, the oil pump adopts an active driving mode to respectively inject fuel oil in the main oil chamber 22 and the auxiliary oil chamber 21 into the oil storage barrel 13, so that the oil pump can absorb enough fuel oil from the oil storage barrel 13 to supply to an engine, the oil pump works more safely and reliably, and the risk of ablation is avoided.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.