CN206000659U - The monoblock pump oil return pipe of stagewise - Google Patents

Abstract

The utility model discloses a kind of monoblock pump oil return pipe of stagewise.This monoblock pump oil return pipe includes：Stagewise oil return house steward, its one end blocks, and the other end connects the oil return interface of fuel oil, and described stagewise oil return house steward specifically includes：More piece oil return pipe and the three way cock connecting this more piece oil return pipe, two side interfaces that adjacent described oil return pipe passes through described three way cock connect；And many oil return manifolds, the interface on its one end connection segment formula monoblock pump, the other end is connected with the top interface of described three way cock, thus oil return manifold and stagewise oil return house steward are joined together to form the monoblock pump oil return pipe of stagewise.The stress that the monoblock pump oil return pipe pipeline of this stagewise bears is less, the risk reduction of pipeline fracture, and pipeline reliability improves；Decrease the oil leak risk that rectification time and monomer pump joint cause because of frequent dismounting；Pipeline manufacturing technique requirent is simple, reduces the difficulty of pipeline packaging and transport.

Description

The monoblock pump oil return pipe of stagewise

Technical field

This utility model is related to diesel engine single body pump field, particularly to a kind of monoblock pump oil return pipe of stagewise.

Background technology

Monoblock pump type electromotor, according to its whole machine deployment scenarios, mainly has combination type monoblock pump and split type monoblock pump at present Two kinds of forms.Combination type monoblock pump is mainly used in that some power are relatively low, on the less electromotor of cylinder centre line spacing, by a monomer Pump is installed housing and each cylinder monoblock pump is assembled together, and makes each monoblock pump have common return flow oil mouth and oil return opening, profile The in-line arrangement mechanical pump of types of traditional.Split type monoblock pump is mainly used in that some power are higher, the larger electromotor of cylinder centre line spacing On.On the engine, between each monoblock pump, distance is larger, relatively independent between each cylinder monoblock pump, has independent installation housing, Independent fuel oil enters, oil return interface etc..

Have individually to enter due to each monoblock pump of split type monoblock pump, oil return interface, outside total oil circuit need to draw a plurality of oil Road is coupled with the entering of each monoblock pump, on oil return interface.The oil circuit arrangement commonly used at present is a total fuel passage The a plurality of manifold of upper welding, the joint of each manifold end connects the interface on each monoblock pump respectively.Fuel manifold and manifold are one The supply of material of body formula and installation.

The oil circuit arrangement that split type monoblock pump is commonly used at present is to weld a plurality of manifold, respectively on a total fuel passage The joint of manifold end connects the interface on each monoblock pump respectively, and fuel manifold and manifold are integral type.This kind of pipeline structure From the aspects of production cost, there are number of parts and the less cost advantages of assembly process really.But for technological layer, This integrated tube line structure but has shortcomings：Integrated tube line structure is due to being all welded between house steward and each manifold Together, and the joint installation site between each monoblock pump all has certain error, in engine operation process, pipeline holds The stress being subject to is relatively large, and the Hazard ratio of pipeline fracture is higher；When electromotor a certain cylinder monoblock pump breaks down needs from body On mounting shell body in take out when being overhauled, need to dismantle existing integrated form pipeline and the connection of total interface on each cylinder monomer A certain fault monoblock pump can be taken out, due to dismount each time a certain cylinder monoblock pump be required for dismantling be connected with this pipeline all Joint on monoblock pump, virtually increased the risk of all monoblock pump seam oil leaks；Because split type monoblock pump is general all It is used in that some power are higher, on the larger electromotor of cylinder centre line spacing, its pipeline is typically also larger longer pipeline, in a basis Weld a plurality of manifold again above very long steel pipe, and anaerobic welding, antirust treatment and transport are carried out to whole piece integrated pipeline Deng, equipment to pipeline manufacturer itself, technology, and cost of transportation etc. require just very high.

The information being disclosed in this background section is merely intended to increase the understanding to general background of the present utility model, and It is not construed as recognizing or imply in any form that this information structure has been existing well known to persons skilled in the art Technology.

Utility model content

The purpose of this utility model is to provide a kind of monoblock pump oil return pipe of simple and reasonable stagewise, this segmentation The stress that the monoblock pump oil return pipe pipeline of formula bears is less, the risk reduction of pipeline fracture, and pipeline reliability improves；Decrease whole Change the oil leak risk that time and monomer pump joint cause because of frequent dismounting；Pipeline manufacturing technique requirent is simple, reduces pipeline Packaging and the difficulty of transport.

For achieving the above object, this utility model provides a kind of monoblock pump oil return pipe of stagewise, the list of this stagewise Body blowback oil pipe includes：Stagewise oil return house steward, its one end blocks, and the other end connects the oil return interface of fuel oil, described stagewise Oil return house steward specifically include：More piece oil return pipe and the three way cock connecting this more piece oil return pipe, adjacent described oil return pipe passes through institute Two side interfaces stating three way cock connect；And many oil return manifolds, the interface on its one end connection segment formula monoblock pump, another End is connected with the top interface of described three way cock, thus oil return manifold and stagewise oil return house steward are joined together to form point The monoblock pump oil return pipe of segmentation.

Preferably, in technique scheme, one end round steel of stagewise oil return house steward blocks, and described oil return pipe is steel Pipe, and be welded and fixed with described three way cock.

Preferably, in technique scheme, the quantity of the quantity of the oil return manifold stagewise monoblock pump unilateral with electromotor Adaptation.

Preferably, in technique scheme, the other end of oil return manifold is led directly to the top interface of three way cock and is connected, blocks Set connects or is articulated and connected.

Compared with prior art, this utility model has the advantages that：The monoblock pump oil return pipe of this stagewise is being sent out In motivation running, the stress that pipeline bears is less, the risk reduction of pipeline fracture, and pipeline reliability improves；Work as electromotor A certain cylinder monoblock pump breaks down to be needed to take out in the mounting shell body body when being overhauled it is only necessary to remove fault earthen pipe Road, need not remove other not guilty earthen pipe roads or even whole piece fuel pipe, decrease rectification time and monomer pump joint because of warp The oil leak risk often dismounting and causing；Pipeline manufacturing technique requirent is simple, and the special equipment that need not put into some big costs just can Produce；Pipeline profile is simple, reduces the difficulty of pipeline packaging and transport.

Brief description

Fig. 1 is the decomposition texture schematic diagram of the monoblock pump oil return pipe of stagewise of the present utility model.

Fig. 2 is the main view assembling structure schematic diagram of the monoblock pump oil return pipe of stagewise of the present utility model.

Fig. 3 is the side-looking assembling structure schematic diagram of the monoblock pump oil return pipe of stagewise of the present utility model.

Specific embodiment

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality New protection domain is not limited by specific embodiment.

Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " inclusion " or its change Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units Part or other ingredient.

As shown in figure 1, the concrete structure of the monoblock pump oil return pipe according to the stagewise of this utility model specific embodiment Including：Stagewise oil return house steward 1 and oil return manifold 2, this stagewise oil return house steward 1 includes more piece oil return pipe 3 and connects this more piece The three way cock 4 of oil return pipe 3, depending on oil return manifold 2 quantity is according to electromotor one side monoblock pump quantity, its one end connects monoblock pump On interface, the other end is connected with three way cock 4, thus oil return manifold 2 is linked together with stagewise oil return house steward 1, shape Become the monoblock pump oil return pipe of stagewise.In engine operation process, the stress that pipeline bears is less, the risk fall of pipeline fracture Low, pipeline reliability improves；When electromotor a certain cylinder monoblock pump break down needs take out in the mounting shell body body into It is only necessary to remove Cylinder pipeline during row maintenance, other not guilty earthen pipe roads or even whole piece fuel pipe need not be removed, reduce The oil leak risk that rectification time and monomer pump joint cause because of frequent dismounting；Pipeline manufacturing technique requirent is simple, need not throw The special equipment entering some big costs just can produce；Pipeline profile is simple, reduces the difficulty of pipeline packaging and transport.

Specifically, one end round steel that can be seen that stagewise oil return house steward 1 in conjunction with Fig. 2 and Fig. 3 blocks, the other end Connect the oil return interface of fuel oil, make the fuel oil coming from fuel tank enter into each monoblock pump through house steward to manifold.This stagewise oil return House steward 1 specifically includes：More piece oil return pipe 3 and the three way cock 4 connecting this more piece oil return pipe 3, the quantity root of more piece oil return pipe 3 Depending on quantity according to the unilateral monoblock pump 5 of electromotor, the quantity of three way cock 4 is according to the quantity of the unilateral monoblock pump 5 of electromotor Depending on, two side interfaces that adjacent oil return pipe 3 passes through three way cock 4 connect, thus forming stagewise oil return house steward 1.Preferably, return Oil pipe 3 is steel pipe, and adjacent oil return pipe 3 and three way cock 4 are welded and fixed.

Depending on the quantity according to electromotor one side monoblock pump 5 for oil return manifold 2 quantity, the concrete trend of manifold is real according to electromotor Depending on the deployment scenarios of border.One end of this oil return manifold 2 connects the interface on monoblock pump, and the other end is connect with the top of three way cock 4 Mouth connects, thus oil return manifold 2 is linked together, forms the monoblock pump oil return pipe of stagewise with stagewise oil return house steward 1.

Preferably, the top interface of the other end of this oil return manifold 2 and three way cock 4 lead directly to is connected, cutting ferrule connection or It is articulated and connected.

To sum up, in engine operation process, the stress that pipeline bears is less, pipeline for the monoblock pump oil return pipe of this stagewise The risk reduction of fracture, pipeline reliability improves；Need installation from body when electromotor a certain cylinder monoblock pump breaks down Take out in housing when being overhauled it is only necessary to remove Cylinder pipeline, other not guilty earthen pipe roads or even whole piece need not be removed Fuel pipe, decreases the oil leak risk that rectification time and monomer pump joint cause because of frequent dismounting；Pipeline production technology will Ask simple, the special equipment that need not put into some big costs just can produce；Pipeline profile is simple, reduces pipeline packaging and transports Difficulty.

The aforementioned description to specific illustrative embodiment of the present utility model illustrate that and illustration purpose.These Description is not wishing to for this utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out A lot of changes and change.The purpose of selecting and describing the exemplary embodiment is that explaining certain principles of the present utility model And its practical application, so that those skilled in the art is capable of and utilizes various different example of the present utility model Property embodiment and various different selection and change.Scope of the present utility model is intended to by claims and its waits similar shape Formula is limited.

Claims (1)

1. a kind of monoblock pump oil return pipe of stagewise is it is characterised in that include：

Stagewise oil return house steward, its one end blocks, and the other end connects the oil return interface of fuel oil, and described stagewise oil return house steward is concrete Including：More piece oil return pipe and the three way cock connecting this more piece oil return pipe, adjacent described oil return pipe passes through described three way cock's Two side interfaces connect；One end round steel of described stagewise oil return house steward blocks, described oil return pipe be steel pipe, and with described threeway Weld is fixed；And

Many oil return manifolds, the interface on its one end connection segment formula monoblock pump, the other end is connect with the top of described three way cock Mouth connects, thus oil return manifold and stagewise oil return house steward are joined together to form the monoblock pump oil return pipe of stagewise；Described The quantity of the quantity of the oil return manifold stagewise monoblock pump unilateral with electromotor is adapted to；The other end of described oil return manifold and threeway The top interface of joint leads directly to connection, cutting ferrule connects or is articulated and connected.