CN209654098U - Engine crank case ventilation pipe, engine and automobile - Google Patents

Abstract

The utility model discloses a kind of engine crank case ventilation pipes, including sebific duct, conducting wire and heat-shrink tube, glue pipe socket is set in heat-shrink tube, conducting wire is close to the outer surface setting of sebific duct, and conducting wire is between heat-shrink tube and sebific duct, the first end of sebific duct is fixed on gs-oil separator, the second end of sebific duct is fixed on the interface of air inlet pipe, the first end of conducting wire connects metal gasket, the second end of conducting wire connects metal lug, metal gasket is fixed on ignition coil, and it is electrically connected with the cathode in circuit system, metal lug is overlapped on the boss of air inlet pipe, and it is electrically connected with the anode in circuit system, metal gasket and metal lug form access in circuit system.The utility model can simplify the structure of crankcase bleed pipe, reduce cost under the premise of OBD system is able to detect that failure.The invention also discloses the engines using above-mentioned engine crank case ventilation pipe, and using the automobile of the engine.

Description

Engine crank case ventilation pipe, engine and automobile

Technical field

The utility model relates to technical field of automobile parts, more particularly to a kind of engine crank case ventilation pipe, hair Motivation and automobile.

Background technique

With the rapid development of auto industry, automobile has become people and goes on a journey indispensable one of the vehicles.Vapour Vehicle ownership increases year by year, and more and more people have private car, and automobile is popularized to the manufacture and design of auto parts and components Bring development.

At work, the high pressure combustion mixture and burnt gas of combustion chamber inevitably pass through work to automobile engine Gap between plug group and cylinder is leak into crankcase, causes gas blowby.The ingredient of gas blowby is unburned fuel vapor, vapor and gives up Gas etc., this can dilute machine oil, reduce the service performance of machine oil, accelerate the oxidation of machine oil, go bad.Condensation of moisture is in machine oil, meeting Form greasy filth, clogged oil line；Sour gas in exhaust gas is mixed into lubricating system, will lead to the corrosion of engine part and accelerates mill Damage；Gas blowby can also make the hypertonia of crankcase and destroy the sealing of crankcase, be lost engine oil leakage.To prevent crankcase pressure Power is excessively high, extends machine oil service life, reduces parts depreciation and corrosion, prevents engine oil leakage, it is necessary to carry out crankcase ventilation. Petrol engine is frequently with forced action type crankcase ventilation, also known as Pcv system (Positive Crankcase at present Ventilation, positive crankcase ventilation (PCV) check PCV).

And with the upgrading of national emission regulation, the monitoring of Pcv system is also increasingly stringenter.New laws and regulations requirement, The pipeline and hose of the external Pcv system of form of ownership, if they are used for balance crankshaft case pressure, or for engine Different zones be aerated, once disconnecting, OBD system (On-Board Diagnostics, onboard diagnostic system) is answered Detection is out of order.It when in order to realize that Pcv system breaks down, can be detected by OBD system, existing crankcase bleed pipe needs It wants complicated structure, when transformation, design need to be re-molded, lead to higher cost.

Utility model content

One purpose of the utility model is to propose a kind of engine crank case ventilation pipe, can examine in OBD system Under the premise of measuring failure, simplifies the structure of crankcase bleed pipe, reduce cost.

A kind of engine crank case ventilation pipe, including sebific duct, conducting wire and heat-shrink tube, the glue pipe socket are set to the heat-shrink tube Interior, the conducting wire is close to the outer surface setting of the sebific duct, and the conducting wire leads between the heat-shrink tube and the sebific duct It crosses the heat-shrink tube to wrap up the conducting wire, the first end of the sebific duct is fixed on the gs-oil separator, the glue The second end of pipe is fixed on the interface of air inlet pipe, and the first end of the conducting wire connects metal gasket, the second end of the conducting wire Metal lug is connected, the metal gasket is fixed on ignition coil, and is electrically connected with the cathode in circuit system, the gold Belong to lug to be overlapped on the boss of the air inlet pipe, and is electrically connected with the anode in the circuit system, the metal gasket Access is formed in the circuit system with the metal lug.

According to the utility model proposes engine crank case ventilation pipe, the both ends of sebific duct are separately fixed at gs-oil separator On the interface of air inlet pipe, and conducting wire is close to the outer surface setting of sebific duct, and conducting wire passes through the metal gasket and metal at both ends Lug forms access in circuit system, once any side pull-off of crankcase bleed pipe, access will be all disconnected, ECU is connect It can not receive electric signal, OBD system, which is just able to detect, to be out of order, which does not change former crankcase bleed pipe Cast trend, only needs the cooperation of sebific duct, conducting wire, heat-shrink tube and associate conductive device, structure is simpler, installation side Just, it does not need to re-mold design, improvement cost is lower.

In addition, can also have following additional technology according to engine crank case ventilation pipe provided by the utility model Feature:

Further, the igniting is connected to close to the periphery that the conducting wire of the gs-oil separator is close to Pcv valve On coil, the metal gasket is fixed on the ignition coil by the installation bolt of the ignition coil.

Further, the first end of the sebific duct is fixed on the gs-oil separator by the first clip, the sebific duct First end be arranged in first clip.

Further, the second end of the sebific duct is fixed on the interface of the air inlet pipe by the second clip, the glue The second end of pipe is arranged in second clip.

Further, the L-shaped structure of the metal gasket.

Further, the L-shaped structure of metal lug.

Further, the conductive lug to extend out on the metal lug and engine wiring harness is in electrical contact.

Another purpose of the utility model is to propose a kind of engine using above-mentioned engine crank case ventilation pipe And the automobile using the engine.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the structural schematic diagram of the engine crank case ventilation pipe of the utility model first embodiment；

Fig. 2 is the structural representation of the engine crank case ventilation pipe (without heat-shrink tube) of the utility model first embodiment Figure；

Fig. 3 is that the engine crank case ventilation pipe of the utility model first embodiment is illustrated in in-engine assembling structure Figure.

Specific embodiment

It is practical to this with reference to the accompanying drawing to keep the purpose of this utility model, feature and advantage more obvious and easy to understand Novel specific embodiment is described in detail.Several embodiments of the utility model are given in attached drawing.But this is practical It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations The purpose of example is to keep the disclosure to the utility model more thorough and comprehensive.

It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side ", "upper", "lower" and similar statement for illustrative purposes only, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the present invention.Term " and or " used herein includes one or more relevant listed items Any and all combinations.

It please refers to Fig.1 to Fig.3, the engine crank case ventilation pipe that the first embodiment of the utility model proposes, including glue Pipe 10, conducting wire 20 and heat-shrink tube 30, the sebific duct 10 are sheathed in the heat-shrink tube 30, and the conducting wire 20 is close to the sebific duct 10 Outer surface setting, and the conducting wire 20 is between the heat-shrink tube 30 and the sebific duct 10, right by the heat-shrink tube 30 The conducting wire 20 is wrapped up, to protect to conducting wire 20.

The first end of the sebific duct 10 is fixed on gs-oil separator 40, and the second end of the sebific duct 10 is fixed on air inlet pipe On 50 interface, the first end of the conducting wire 20 connects metal gasket 61, and the second end of the conducting wire 20 connects metal lug 62, The metal gasket 61 is fixed on ignition coil 70, and is electrically connected with the cathode in circuit system, the metal lug 62 It is overlapped on the boss of the air inlet pipe 50, and is electrically connected with the anode in the circuit system, specifically, can be by metal The conductive lug to extend out on lug 62 and engine wiring harness is in electrical contact, i.e., is directly led using existing on engine wiring harness Electric lug realizes the anode that metal lug 62 accesses in circuit system, and the metal gasket 61 and the metal lug 62 are described Access is formed in circuit system, which connect with ECU.

Since the both ends of sebific duct 10 are separately fixed on gs-oil separator 40 and the interface of air inlet pipe 50, and conducting wire 20 is tight The outer surface of rubberizing pipe 10 is arranged, and conducting wire 10 is formed in circuit system by the metal gasket 61 and metal lug 62 at both ends Access, once any side pull-off of crankcase bleed pipe, access will be all disconnected, ECU does not receive electric signal, OBD system It is just able to detect and is out of order, and the engine crank case ventilation pipe does not change former crankcase bleed pipe cast trend, only needs sebific duct 10, the cooperation of conducting wire 20, heat-shrink tube 30 and associate conductive device (metal gasket 61 and metal lug 62), structure is more Simply, easy for installation, it does not need to re-mold design, improvement cost is lower.

Specifically, the periphery that the conducting wire 20 of the close gs-oil separator 40 is close to Pcv valve is connected to the point On firewire circle 70, the metal gasket 61 is fixed on by the ignition coil 70 by the installation bolt of the ignition coil 70 On.

The first end of the sebific duct 10 is fixed on the gs-oil separator 40 by the first clip 81, the sebific duct 10 First end is arranged in first clip 81.First clip 81 can be fixed on the corresponding position of engine.

The second end of the sebific duct 10 is fixed on the interface of the air inlet pipe 50 by the second clip 82, the sebific duct 10 Second end be arranged in second clip 82.Second clip 82 can be directly anchored in air inlet pipe 50.

When it is implemented, sebific duct 10 and conducting wire 20 are separately formed part, the side wall in the outlet at 10 both ends of sebific duct can be set The mark of two positioning is set, a mark is used to determine export direction and the position of both ends conducting wire, another mark is used to determine The middle position of clip opening, heat-shrink tube 30 plays the role of that conducting wire 20 is made to be close to sebific duct 10 in manufacturing process.In addition, for hair The conductor spacing at motivation end and air inlet pipe end is provided with the length that dedicated tooling carries out trial assembly conducting wire 20, to guarantee crankcase When ventilation duct pull-off, conducting wire 20 is pulled off, and the length for leading 20 must adapt to the stringent control of structure, and allowance control is in ± 5mm.

Optionally, the L-shaped structure of the metal gasket 61, with 90 ° of bending, limit when for installing, to prevent gold Belong to gasket 61 to rotate freely around bolt.Similarly, the metal lug 62 also L-shaped structure, with 90 ° of bending, for limiting.

To sum up, the engine crank case ventilation pipe proposed according to the present embodiment, the both ends of sebific duct 10 are separately fixed at oil gas On separator 40 and the interface of air inlet pipe 50, and conducting wire 20 is close to the outer surface setting of sebific duct 10, and conducting wire 20 passes through both ends Metal gasket 61 and metal lug 62 access is formed in circuit system, once any side pull-off of crankcase bleed pipe, Access will be all disconnected, and ECU does not receive electric signal, and OBD system, which is just able to detect, to be out of order, the engine crank case ventilation pipe Former crankcase bleed pipe cast trend is not changed, only needs the cooperation of sebific duct 10, conducting wire 20, heat-shrink tube 30 and associate conductive device , structure is simpler, and it is easy for installation, it does not need to re-mold design, improvement cost is lower.

The second embodiment of the utility model proposes that a kind of engine and automobile, the engine include at least first embodiment Engine crank case ventilation pipe, the automobile include at least the engine, with the engine automobile, can be in OBD system Under the premise of being able to detect that failure, simplifies the structure of crankcase bleed pipe, reduce cost.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiment or examples.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (9)

1. a kind of engine crank case ventilation pipe, which is characterized in that including sebific duct, conducting wire and heat-shrink tube, the glue pipe socket is set to In the heat-shrink tube, the conducting wire is close to the outer surface setting of the sebific duct, and the conducting wire is located at the heat-shrink tube and described Between sebific duct, the conducting wire to be wrapped up by the heat-shrink tube, the first end of the sebific duct is fixed on gs-oil separator, The second end of the sebific duct is fixed on the interface of air inlet pipe, and the first end of the conducting wire connects metal gasket, the conducting wire Second end connects metal lug, and the metal gasket is fixed on ignition coil, and is electrically connected with the cathode in circuit system, The metal lug is overlapped on the boss of the air inlet pipe, and is electrically connected with the anode in the circuit system, the gold Belong to gasket and the metal lug forms access in the circuit system.

2. engine crank case ventilation pipe according to claim 1, which is characterized in that close to the institute of the gs-oil separator It states conducting wire and is close to the periphery of Pcv valve and be connected on the ignition coil, it will be described by the installation bolt of the ignition coil Metal gasket is fixed on the ignition coil.

3. engine crank case ventilation pipe according to claim 1, which is characterized in that the first end of the sebific duct passes through the One clip is fixed on the gs-oil separator, and the first end of the sebific duct is arranged in first clip.

4. engine crank case ventilation pipe according to claim 1, which is characterized in that the second end of the sebific duct passes through the Two clips are fixed on the interface of the air inlet pipe, and the second end of the sebific duct is arranged in second clip.

5. engine crank case ventilation pipe according to claim 1, which is characterized in that the L-shaped structure of metal gasket.

6. engine crank case ventilation pipe according to claim 5, which is characterized in that the L-shaped structure of metal lug.

7. engine crank case ventilation pipe according to claim 1, which is characterized in that the metal lug and engine line The conductive lug to extend out on beam is in electrical contact.

8. a kind of engine, which is characterized in that including engine crank case ventilation pipe described in claim 1 to 7 any one.

9. a kind of automobile, which is characterized in that including engine according to any one of claims 8.