CN201747492U

CN201747492U - Vertical intake manifold structure

Info

Publication number: CN201747492U
Application number: CN2010202479376U
Authority: CN
Inventors: 刘小生; 李力; 梁静
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-02-16
Anticipated expiration: 2020-07-06

Abstract

The utility model discloses a vertical intake manifold structure, which comprises a temperature manifold air pressure (TMAP) mounting platform (1), a resonant cavity (2), a manifold (3), a cylinder head flange (4), an idle-speed ventilation pipe connector (5), a throttle body flange (6), and a bowl-shaped plug (7). The resonant cavity (2), the manifold (3), the cylinder head flange (4), the throttle body flange (6) and the TMAP mounting platform (1) are cast into a whole, the idle-speed ventilation pipe connector (5) and the bowl-shaped plug (7) are assembled through mechanical pressing, and the axial lines of the idle-speed ventilation pipe connector (5) and the TMAP mounting platform (1) are both inclined upwards and form a 45-degree included angle with the flange surface of the cylinder head flange (4). The utility model can minimize the size of the manifold while ensuring the normal use of the intake manifold. Moreover, the utility model has the advantages of simple and compact structure, excellent performance and good casting and machining process, and can realize mass production.

Description

A kind of vertical intake manifold structure

Technical field

The utility model relates to a kind of structure of aluminum alloy air inlet manifold of vertical engine, specifically the intake manifold of the naturally aspirated engine of a compact structure.

Background technique

The function of intake manifold mainly is for the acting of motor normal combustion provides fresh air (fuel mixture), for vacuum booster unit, Valve EGR etc. provides vacuum, as the prop carrier of parts such as intake manifold support, throttle valve body.Intake manifold belongs to complete machine outward appearance annex, also is the vitals that influences engine performance, and is therefore very high to the designing requirement of intake manifold.Must be from the spatial structure of manifold, to the complete machine Effect on Performance, conveniently make, a plurality of aspects such as elegant in appearance start with.

For compact car, the restriction of engine compartment bulk is very harsh, motor bulk has been proposed very high requirement, so the design to intake manifold has proposed strict requirement, require the height of intake manifold to be no more than other component peaks on the motor, overall width is no more than the wideest point of other component on the motor equally.

The parameters such as volume of the pipe range of intake manifold, caliber, resonant cavity are bigger to the influence of the power character of motor and Economy, and long and thin in theory intake manifold helps improving the power character of middle and slow speed of revolution.And the motor normal revolution also all is at middle and slow speed of revolution, in order to satisfy the actual needs that use, improves the middle and slow speed of revolution performance as far as possible, just need strengthen the length of intake manifold as far as possible.

Intake manifold is the foundry goods of shape more complicated on the motor, and whole thin-walled belongs to the bigger part of change on the motor, and wall thickness differs greatly, and thermal center is many, occurs various defectives easily, and particularly spatial structure is compact, adopts the gravity casting difficulty bigger.Aluminum alloy air inlet manifold mainly is to adopt die cast at present, and mould generally divides upper and lower mould, core mould and some loose piece mechanisms etc., and as shown in Figure 7, wherein the D place represents the depanning direction.The A place is resonant cavity 2 and manifold 3 transition positions depression, sand mo(u)ld assembling difficulty, and metal pattern can't depanning; The B place, resonant cavity 2 is little with flange 3 gaps, sand mold assembling difficulty; The C place, one section arc transition between manifold 3 and the flange 4 causes metal pattern depanning back-off, only can use sand mold.

The model utility content

In order to address the above problem, the utility model discloses a kind of vertical intake manifold structure, comprise TMAP mounting platform, resonant cavity, manifold, cylinder cap flange, idling ventilation duct joint, throttle valve body flange and Bowl Plug, wherein resonant cavity, manifold, cylinder cap flange, throttle valve body flange and TMAP mounting platform are cast into one, idling ventilation duct joint and Bowl Plug are assembled by mechanical press mounting, it is characterized in that: the axis of idling ventilation duct joint and TMAP mounting platform all obliquely, with the flanged surface angle of cylinder cap flange be 45 °.

Further, the pipeline of manifold is

The shape structure.

Further, the transition between the pipeline of manifold and the cylinder cap flange is downward radian, and transition arc R is 60mm.The transition of resonant cavity and manifold connection part is a chamfered transition, and inclined-plane and resonant cavity cylindrical are tangent.Manifold is a straight line near the outer wall profile at cylinder cap flange position, and consistent with the depanning direction.

Further, the rising head of cast is located at cylinder cap flange place.

The utility model intake manifold is satisfying under the normal prerequisite of using, reduced the size of manifold to greatest extent, more convenient motor is arranged on car load, key parameters such as appropriate design manifold channels trend, pipe range are with power character, the Economy of further raising motor on this basis, while appropriate design mold joint is to realize good casting, processing technology.The utility model is applicable to float petrol machine, and is simple for structure, compact, excellent performance, and casting, mechanical processing technique is good, can be mass-produced.

Description of drawings

Fig. 1: the vertical intake manifold structural representation of the utility model

The right side view of Fig. 2: Fig. 1;

Fig. 3: resonant cavity and manifold connection part are handled schematic representation;

Fig. 4: manifold and cylinder cap flange connection part are handled schematic representation;

Fig. 5: the vertical intake manifold structure of the utility model paring line schematic representation;

Fig. 6: the vertical intake manifold structure of the utility model frock part model schematic representation;

Fig. 7: existing vertical intake manifold structural representation.

Description of reference numerals:

1, TMAP mounting platform, 2, resonant cavity,

3, manifold, 4, the cylinder cap flange,

5, idling ventilation duct joint, 6, the throttle valve body flange,

7, Bowl Plug

Embodiment

The disclosed vertical intake manifold structure of the utility model comprises TMAP mounting platform 1 as shown in Figure 1, resonant cavity 2, manifold 3, cylinder cap flange 4, idling ventilation duct joint 5, throttle valve body flange 6, Bowl Plug 7.Wherein resonant cavity 2, manifold 3, cylinder cap flange 4, throttle valve body flange 6 and TMAP mounting platform 1 part are cast into one, and idling ventilation duct joint 5 and Bowl Plug 7 are assembled by mechanical press mounting.

The utility model has solved technical barrier by the following technical solutions.

1, reduce the motor total height by unique design to the intake manifold structure:

1), the axis of idling ventilation duct joint 5 and TMAP mounting hole all obliquely, with the flanged surface angle of cylinder cap flange 4 be 45 °.

2), manifold 3 pipelines adopt uniqueness

Shape structure, this structure can when satisfying complete machine upper limit height, increase as far as possible pipe range with reach motor in normal revolution during low speed power character and Economy better.

3), downward radian, transition arc R60mm are adopted in the pipeline of manifold 3 and 4 transition of cylinder cap flange.

4), upper half part of the pipeline of same manifold 3 and the close resonant cavity of resonant cavity 1 connection part, resonant cavity has been accepted the bent state of pipeline.

2, in order to improve the manufacturability of gravity casting, former intake manifold a series of structure optimizations have been carried out.

1), change the concave transition of resonant cavity 2 and manifold 3 connection parts into chamfered transition, inclined-plane and resonant cavity cylindrical are tangent, and be simultaneously consistent with the depanning direction, and the assurance sand mold can assemble smoothly, as Fig. 3.

2), one section arc transition between manifold 3 and the cylinder cap flange 4 is changed, guarantee that manifold internal face geomery is constant, increase wall thickness, so the outer wall at this position is thickeied, manifold 3 outer wall profiles are in line and consistent with the depanning direction, solve the problem of mould depanning back-off, can realize that sand casting process is to the permanent mold casting transition, as Fig. 4.

3), the rising head of cast is located at cylinder cap flange 4 places, avoid causing extra casting defect owing to pipe wall thickness is inhomogeneous.

During manifold of the present utility model casting the mould of manifold put and the upper and lower mould paring line roughly as Fig. 5, external mold divides upper and lower mould, is equipped with various loose pieces simultaneously, zone line and air flue employing sand mold, frock part model such as Fig. 6.Finally utilize metal mold to produce intake manifold in enormous quantities, manufacturing efficiency, quality of product and product percent of pass are provided greatly.

Claims

1. vertical intake manifold structure, comprise TMAP mounting platform (1), resonant cavity (2), manifold (3), cylinder cap flange (4), idling ventilation duct joint (5), throttle valve body flange (6) and Bowl Plug (7), resonant cavity (2) wherein, manifold (3), cylinder cap flange (4), throttle valve body flange (6) and TMAP mounting platform (1) are cast into one, idling ventilation duct joint (5) and Bowl Plug (7) are assembled by mechanical press mounting, it is characterized in that: the axis of idling ventilation duct joint (5) and TMAP mounting platform (1) all obliquely, with the flanged surface angle of cylinder cap flange (4) be 45 °.

2. vertical intake manifold structure according to claim 1 is characterized in that: the transition between the pipeline of manifold (3) and the cylinder cap flange (4) is downward radian, and transition arc R is 60mm.

3. vertical intake manifold structure according to claim 1 is characterized in that: resonant cavity (2) is a chamfered transition with the transition of manifold (3) connection part, and inclined-plane and resonant cavity cylindrical are tangent.

4. vertical intake manifold structure according to claim 1 is characterized in that: manifold (3) is a straight line near the outer wall profile at cylinder cap flange (4) position, and consistent with the depanning direction.

5. vertical intake manifold structure according to claim 1 is characterized in that: the rising head of cast is located at cylinder cap flange (4) and locates.