CN101368516B - Valve sheet of controllable combustion speed actuating unit of car engine - Google Patents
Valve sheet of controllable combustion speed actuating unit of car engine Download PDFInfo
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- CN101368516B CN101368516B CN 200810023193 CN200810023193A CN101368516B CN 101368516 B CN101368516 B CN 101368516B CN 200810023193 CN200810023193 CN 200810023193 CN 200810023193 A CN200810023193 A CN 200810023193A CN 101368516 B CN101368516 B CN 101368516B
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- valve block
- transition arc
- valve plate
- intake duct
- actuating unit
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Abstract
The invention discloses a valve plate of the controllable combustion speed execution device of an automobile engine; the valve plate (1) is fixed in the air inlet channel (9) of the mounting valve plate through a rotary shaft (6); the outline of the lateral side (19) of the valve plate is set to be concave-convex fluctuation curved surface; a valve plate gap (13) is arranged on the valve plate (1) to be unable to seal the air inlet channel (9) completely when the valve plate (1) is closed completely; a central hollow valve plate waist-shaped hole (18) is arranged on the valve plate (1); the radius proportion of the transition arc (15) and the transition arc (14) is within the range of 1:1-8; when the valve plate (1) is closed completely, the uncovered area of the air inlet channel (9) accounts for 10%-40% of the overflow surface of the whole air inlet channel (9). The technical proposal of the invention is adopted to control the uncovered overflow area of the air inlet channel; the flow velocity of the gas and fuel are controlled effectively according to the engine working condition to generate swirl and tumble motions with different intensities in the cylinder, so as to obtain better engine performance.
Description
Technical field
The present invention relates to the automotive engine air intake system field, more particularly, the present invention relates to a kind of valve block of controllable combustion speed actuating unit of car engine.
Background technique
In automotive engine air intake system, controllable combustion speed actuating unit generally is applied on the double air passage four-valve engine, and one of them air flue is neutral air flue, and another one is a tangential air flue.Variable combustion speed actuating unit is under the engine section load, control the throttling of neutral air flue by butterfly valve or slide plate, then make tangential air flue in cylinder, introduce strong eddy current, this strong eddy current inflation can cause causing stronger eddy current near the top dead center, thereby cause very high rate of burning.This high-velocity combustion can realize higher lean-burn or EGR, realizes the purpose of fuel economy; Under the high load situation, the throttle valve on the neutral air flue is all opened, and guarantees sufficient inflation, thereby guarantees the performance of motor.
In existing technology, the Chinese patent publication number is the utility application of CN201007237Y, discloses a kind of controllable combustion speed actuating unit of motor, the control valve open-and-close mechanism that it mainly comprises final controlling element, is connected with final controlling element.Valve block wherein is connected with rotating shaft by screw, and when this mechanism opened the intake duct valve block, in the intake duct intermediate portion, rotating shaft and valve block produced flow resistance and influence flowing state gas flow together; In addition, when the intake duct valve block was closed, the shape of valve block breach varies in size can influence the actual conditions of air inlet, thereby influences the power and the emission performance of motor.
Summary of the invention
The technical problem that technological scheme provided by the invention will solve is: a kind of valve block that is installed near the controllable combustion speed actuating unit of car engine air admittance mouth fuel injector downstream portion is provided, be used for changing the flowing state of gas and fuel, concrete operating mode according to motor, the effective flowing velocity of control gaseous and fuel, in cylinder, produce the eddy current of varying strength and roll stream, help fuel and gas mixed combustion, improve the efficient of motor.
The valve block of controllable combustion speed actuating unit of car engine of the present invention, comprise: valve block, control valve open-and-close mechanism main body, described valve block is fixed in the intake duct that valve block is installed by rotating shaft, the profile of valve block side is set to ups and downs curve form, the valve block of sening as an envoy to is set on the described valve block when contract fully, can set out hollow valve block center waist-shaped hole on the valve block the valve block breach of the intake duct complete closed of valve block is installed.
The valve block side of described valve block is set to streamlined structure, and transition arc is protruding structure, and transition arc and transition arc are tangent, and transition arc is recessed structure, thereby makes transition arc and transition arc be the tangent arc smooth transition.
Described transition arc and valve block plane are tangent.
The trend of described valve block center waist-shaped hole is consistent with the trend of the boss of transition arc.
The shape of the medium position of described rotating shaft is consistent with the shape of valve block center waist-shaped hole.
Described radius is that the radius ratio of the transition arc of R2 and the transition arc that radius is R1 is between 1: 1～8.
The radius of described valve block is that the radius value of transition arc of R2 is between 2～5mm.
During described valve block contract fully, the intake duct that valve block is installed not by the area of valve block stop limits part account for the whole erection valve block the intake duct flow-passing surface area 10%～40%.
During described valve block contract fully, the intake duct that valve block is installed is not accounted for the percentage especially 20% of area of the intake duct flow-passing surface of whole erection valve block by the area of valve block stop limits part.
Described valve block edge is set to the structure of curved profile.
Adopt the valve block of technical solution of the present invention, by control to valve block boundary dimension, can effectively control the area size of the flow-passing surface that intake duct is not blocked, can change the flowing state of gas and fuel, and according to the concrete operating mode of motor, the flowing velocity of effective control gaseous and fuel, in cylinder, produce the eddy current of varying strength and roll stream, help fuel and gas mixed combustion, improve the efficient of motor, and can reduce motor carbon compound and other discharge of harmful gases.
Description of drawings
Make briefly bright to each width of cloth accompanying drawing of specification of the present invention expressed content and the mark among the figure below:
Fig. 1 is the structural representation of the controllable combustion speed actuating unit of car engine that the present invention relates to;
Fig. 2 is the structure cross-sectional schematic that rotating shaft of the present invention is connected with valve block;
Fig. 3 is the sectional structure schematic representation of the A-A face of valve block shown in Figure 2;
Fig. 4-a～4-g is the structural representation of the different form structure of valve block of the present invention;
Be labeled as among the figure: 1, valve block; 2, control valve open-and-close mechanism main body; 3, intake manifold; 4, intake manifold flange; 5, drive pull bar; 6, rotating shaft; 7, connecting bolt; 8, rocking arm; 9, the intake duct of valve block is installed; 10, valve block running shaft; 11, intake duct; 12, the part that is not blocked of intake duct; 13, valve block breach; 14, transition arc; 15, transition arc; 16, valve block plane; 17, valve block edge; 18, valve block center waist-shaped hole; 19, valve block side.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail embodiment.
As Fig. 1, Fig. 2, shown in Figure 3, the valve block of controllable combustion speed actuating unit of car engine of the present invention, comprise: valve block 1, control valve open-and-close mechanism main body 2, described valve block 1 is fixed in the intake duct 9 that valve block is installed by rotating shaft 6, the profile of valve block side 19 is set to ups and downs curve form, the valve block 1 of sening as an envoy to is set on the described valve block 1 can will the valve block breach 13 of intake duct 9 complete closed of valve block be installed when contract fully, valve block 1 center sets out hollow valve block center waist-shaped hole 18.
The valve block side 19 of described valve block 1 is set to streamlined structure, and transition arc 15 is protruding structure, and transition arc 14 is tangent with transition arc 15, and transition arc 14 is recessed structure, thereby makes transition arc 15 and transition arc 14 be the tangent arc smooth transition.
Described transition arc 15 is tangent with valve block plane 16.
The trend of described valve block center waist-shaped hole 18 is consistent with the trend of the boss of transition arc 15.
The shape of the medium position of described rotating shaft 6 is consistent with the shape of valve block center waist-shaped hole 18.
Described radius is that the radius ratio of the transition arc 15 of R2 and the transition arc 14 that radius is R1 is between 1: 1～8.
Described valve block edge 17 is set to the structure of curved profile.
Described intake manifold 3 comprises four air intake branches, each air intake branch extends to intake manifold flange 4, have two suction ports that are communicated with each air intake branch intake duct on the intake manifold flange 4, make the intake duct of motor be divided into four tangential air flues (being intake duct 11) and four neutral air flues (intake duct 9 of valve block promptly is installed), the air flue 9 of four installation valve blocks that wherein distribute on the main body 2 of each air intake branch air flue and control valve open-and-close mechanism and four smooth respectively transition of intake duct 11 are joined and are one.
Structure of the present invention comprises that intake manifold 3 is connected with control valve open-and-close mechanism main body 2 by manifold flange 4, described control valve open-and-close mechanism comprises the swing mechanism that drives pull bar 5 and rocking arm 8 compositions, four rotating shafts 6 that are connected with rocking arm 8, four valve blocks 1 that are connected with rotating shaft 6 and the control valve open-and-close mechanism main body 2 that connects with intake manifold flange 4, be rotary affixed between described driving pull bar 5 and the rocking arm 8, drive pull bar 5 and drive rocking arm 8, rotating shaft 6 and valve block 1 rotate around valve block running shaft 10 together, change the sense of rotation of valve block 1 by the direction that changes the power F that drives pull bar 5, thereby control the opening and closing of the intake duct 9 that valve block is installed.
The present invention has carried out optimal design to the form structure of valve block 1, especially to the control of the shape of valve block 1 side: valve block plane 16 is the transition arc 14 of R1 and the transition arc 15 transition light slips that radius is R2 with the rotating shaft high spot by radius, and radius is that transition arc 14 and the radius of R1 is that the transition arc 15 of R2 is tangent; Radius is that the transition arc 15 of R2 is tangent with valve block plane 16, and wherein radius is that the center of circle of the transition arc 15 of R2 is dropped on the valve block running shaft 10; Radius is that the transition arc radius value of R2 is between 2～5mm;
Radius be the ratio of the transition arc 15 of R2 and transition arc 14 the two radius that radius is R1 between 1: 1～8, by this streamlined structure is set, reduced the flow resistance in the gas flow process, help the smooth and easy of gas flow;
Simultaneously, the situation of valve block 1 standard-sized sheet, owing to exist rotating shaft 6 and valve block 1 shape own to make the intake duct 9 that valve block is installed still have certain throttling action, because valve block 1 has streamline line style side and valve block edge 17, make air-flow when flowing through valve block 1, play the effect of certain decompressing speed-increasing, promote to flow, make gas obtain bigger kinetic energy, fuel and gas are fully mixed, help abundant burning, thereby reduce discharge of harmful gases.
The present invention has carried out optimal design to the notch size of the setting of valve block 1, and described valve block 1 rotating center is provided with waist shaped hole 18, and valve block 1 and rotating shaft 6 are connected by interference fit; Described valve block 1 has breach, and valve block 1 can be around 10 rotations of valve block running shaft, and during the valve block contract fully, the area of the flow-passing surface 12 that air flue is not blocked is proportional with the area of 9 whole of the intake ducts that valve block is installed;
During described valve block 1 contract fully, the intake duct 9 that valve block is installed not by the area of valve block 1 stop limits part account for the whole erection valve block intake duct 9 flow-passing surfaces area 10%～40%.
During described valve block 1 contract fully, the intake duct 9 that valve block is installed is not accounted for the percentage especially 20% of area of intake duct 9 flow-passing surfaces of whole erection valve block by the area of valve block 1 stop limits part.
The different breach design diagram of the valve block 1 shown in Fig. 4-a～4-g.
Described valve block 1 all has an opening, makes the air flue 9 that valve block is installed have the part 12 that intake duct is not blocked when valve block 1 is closed, and all valve blocks 1 all have a valve block running shaft 10.
When the valve block 1 rotation contract fully shown in Fig. 4-a was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 10%;
When the valve block 1 rotation contract fully shown in Fig. 4-b was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 20%;
When the valve block 1 rotation contract fully shown in Fig. 4-c was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 30%;
When the valve block 1 rotation contract fully shown in Fig. 4-d was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 40%;
When the valve block 1 rotation contract fully shown in Fig. 4-e was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 20%;
When the valve block 1 rotation contract fully shown in Fig. 4-f was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 30%;
When the valve block 1 rotation contract fully shown in Fig. 4-g was installed the intake duct 9 of valve block, the percentage that the area of the flow-passing surface 12 that air flue does not stop accounts for the area of 9 whole of the intake ducts that valve block is installed was 40%.
When motor is in the operating mode of little load of low speed or cold start-up, valve block 1 is around 10 rotations of valve block running shaft, close the intake duct 9 (being neutral air flue) that valve block is installed, make intake duct 9 throttlings that valve block is installed, thereby make fresh air just fuel mixture one tangential speed is arranged when entering the firing chamber, in the firing chamber, form orderly eddy current, therefore improved propagation of flame speed greatly; Simultaneously, a part of gas is never flowed into the firing chamber by flow-passing surface 12 places that valve block stops, the laterostigmatal fuel droplet that gathers is fully atomized under the effect of air-flow be mixed gas, helps combustion of mixed gas.The control of the boundary dimension by valve block 1, effectively controlled the area size of the flow-passing surface 12 that air flue is not blocked, at the indoor generation of combustion in IC engine eddy current in various degree with roll stream, burning when helping low engine speed light load or cold start-up, obtain better engine performance, and can reduce motor carbon compound and other discharge of harmful gases.
The present invention has carried out Optimal Structure Designing to the side of the notch size of valve block 1 and valve block 1 is streamlined, make motor when the operating mode of cold start-up or low speed, low-load, the throttling of the intake duct 9 of valve block is installed in control, thereby the control live gas is the flowing state that the fuel mixture body enters cylinder, improves combustion position; Simultaneously, guarantee motor again when the high-revolving operating mode of high load, valve block 1 is in time opened, thereby guarantees the air inflow of motor abundance, finally improves the combination property of motor when each operating mode.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously the concrete realization of the present invention is not subjected to the restriction of above-mentioned concrete mode; as long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; make change as structure to the valve block side that the present invention relates to; or without change design of the present invention and technological scheme directly applied to other occasions, all fall within the scope of protection of the present invention.
Claims (5)
1. the valve block of controllable combustion speed actuating unit of car engine, comprise: valve block (1), control valve open-and-close mechanism main body (2), described valve block (1) is fixed in the intake duct (9) that valve block is installed by rotating shaft (6), the profile of valve block side (19) is set to ups and downs curve form, described valve block (1) upward is provided with the valve block (1) of sening as an envoy to can not install the valve block breach (13) of intake duct (9) complete closed of valve block when contract fully, set out hollow valve block center waist-shaped hole (18) on the valve block (1), the valve block side (19) of described valve block (1) is set to streamlined structure, transition arc II (15) is protruding structure, and transition arc I (14) is tangent with transition arc II (15), transition arc I (14) is recessed structure, thereby make transition arc II (15) and transition arc I (14) be the tangent arc smooth transition, described transition arc II (15) is tangent with valve block plane (16), the trend of described valve block center waist-shaped hole (18) is consistent with the trend of the boss of transition arc II (15), the shape of the medium position of described rotating shaft (6) is consistent with the shape of valve block center waist-shaped hole (18), it is characterized in that: the ratio of the radius of the radius of described transition arc II (15) and transition arc I (14) is between 1: 1～8.
2. according to the valve block of the described controllable combustion speed actuating unit of car engine of claim 1, it is characterized in that: the radius value of the transition arc II (15) of described valve block (1) is between 2～5mm.
3. according to the valve block of the described controllable combustion speed actuating unit of car engine of claim 1, it is characterized in that: during described valve block (1) contract fully, the intake duct (9) that valve block is installed not by the area of valve block (1) stop limits part account for the whole erection valve block intake duct (9) flow-passing surface area 10%～40%.
4. according to the valve block of claim 1 or 2 described controllable combustion speed actuating unit of car engine, it is characterized in that: during described valve block (1) contract fully, the intake duct (9) that valve block is installed is not accounted for the percentage especially 20% of area of intake duct (9) flow-passing surface of whole erection valve block by the area of valve block (1) stop limits part.
5. according to the valve block of the described controllable combustion speed actuating unit of car engine of claim 1, it is characterized in that: described valve block edge (17) is set to the structure of curved profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810023193 CN101368516B (en) | 2008-07-18 | 2008-07-18 | Valve sheet of controllable combustion speed actuating unit of car engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810023193 CN101368516B (en) | 2008-07-18 | 2008-07-18 | Valve sheet of controllable combustion speed actuating unit of car engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101368516A CN101368516A (en) | 2009-02-18 |
| CN101368516B true CN101368516B (en) | 2010-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810023193 Active CN101368516B (en) | 2008-07-18 | 2008-07-18 | Valve sheet of controllable combustion speed actuating unit of car engine |
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| Country | Link |
|---|---|
| CN (1) | CN101368516B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223430A (en) * | 1978-12-01 | 1980-09-23 | Crane Co. | Method for making seat assembly for butterfly valves |
| US5640941A (en) * | 1995-12-04 | 1997-06-24 | Ford Motor Company | Internal combustion engine with stratified charge and tumble motion |
| US6662772B1 (en) * | 1999-11-12 | 2003-12-16 | Siemens Canada Limited | Integrated swirl control valve |
-
2008
- 2008-07-18 CN CN 200810023193 patent/CN101368516B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223430A (en) * | 1978-12-01 | 1980-09-23 | Crane Co. | Method for making seat assembly for butterfly valves |
| US5640941A (en) * | 1995-12-04 | 1997-06-24 | Ford Motor Company | Internal combustion engine with stratified charge and tumble motion |
| US6662772B1 (en) * | 1999-11-12 | 2003-12-16 | Siemens Canada Limited | Integrated swirl control valve |
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| Publication number | Publication date |
|---|---|
| CN101368516A (en) | 2009-02-18 |
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Address after: 241009 Anhui province Wuhu Jiuzi Jiujiang City Jiujiang District Economic Development Zone Leap Road on the north side of East Road No. 18 Patentee after: Japhl Powertrain Systems Co., Ltd. Address before: 241009 five floor, Pioneer Park for overseas Chinese students, Wuhu economic and Technological Development Zone, Anhui Patentee before: Wuhu Japhl Powertrain Systems Co., Ltd. |