CN103422891B - Device and method for recovery of compressed gas of engine - Google Patents
Device and method for recovery of compressed gas of engine Download PDFInfo
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- CN103422891B CN103422891B CN201210159767.XA CN201210159767A CN103422891B CN 103422891 B CN103422891 B CN 103422891B CN 201210159767 A CN201210159767 A CN 201210159767A CN 103422891 B CN103422891 B CN 103422891B
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Abstract
The invention discloses a device and method for recovery of compressed gas of an engine. The device for recovery of the compressed gas of the engine comprises a body which is arranged between an exhaust port and a gas inlet of the engine. The body comprises a first body, a second body and a third body, wherein the first body, the second body and the third body are stacked in sequence, the first body is connected with the exhaust port of the engine, at least one compressed gas recovery gas passage which is communicated with a compressed gas storage pipeline is arranged on the first body, at least one through hole which corresponds to the exhaust port of the engine is further formed in the first body, a check valve which is closed when the engine carries out gas suction is arranged in the through hole, two valve blind holes are formed in the two sides of the check valve, at least one three-gas-port type through hole which corresponds to the exhaust port of the engine is formed in the second body, and three gas ports in the through hole are spaced mutually to be arranged in a line-shaped mode. The device and method for recovery of the compressed gas of the engine can ensure enough gas inflow, is reliable enough, and can work for a long time without leakage.
Description
Technical field
The present invention relates to a kind of engine compresses gas concentration unit and method, particularly a kind of pressurized gas recovering device for air hybrid motor and method.
Background technique
In the working procedure of vehicle, the situation of inevitably motor no-load running.Motor does not now produce Power output, but needs to keep running state, and its piston is still in to-and-fro motion.Because piston can produce compression to the gas in piston cylinder when moving, if by this to be got up by the gas storage compressed and be back to use motor open/stop in the links such as control, low speed supercharging compensate and the compensation of car load pneumatic system air feed, just can reduce oil consumption and the CO2 emissions of motor, the acceleration performance of automobile can also be improved and reduce the situation even eliminating over-emitting black exhaust when accelerating.Air hybrid motor is exactly a kind of motor with this pressurized gas reuse technology.
In order to pressurized gas when realizing motor zero load reclaims, need to arrange pressurized gas recovering device on air hybrid motor.As shown in Figure 1, existing a kind of technological scheme on the air flue of motor, increases a set of pressurized gas store pipeline 100, makes pressurized gas enter into this pressurized gas store in pipeline 100 by single air flue compression gas concentration unit.Particularly, the intersection (recovery window 102 place in the middle part of the suction tude 104 being namely positioned at motor) storing pipeline 100 and engine air flue at pressurized gas arranges two reed one-way valves, when one of them one-way valve is the recovering mechanism one-way valve 103(engine suction be arranged in engine air flue, it is positioned at the upstream position that pressurized gas stores pipeline 100), another one-way valve is arranged on the gas recovery approach one-way valve 105 in pressurized gas storage pipeline 100.When motor normal suction, recovering mechanism one-way valve 103 is on state, and gas enters in motor from cylinder head suction port 101.Gas recovery approach one-way valve 105 has certain cracking pressure, and its force value is between suction pressure and exhaust pressure, and under the on state of this gas recovery approach one-way valve 105, pressurized gas stores pipeline 100 from the upper airway flow of motor to pressurized gas.During motor normal suction, suction pressure (being generally less than 0.2MPa) is less than above-mentioned cracking pressure, does not thus have gas and enters in pressurized gas storage pipeline 100.Under being in exhaust condition in engine air flue, what discharge from engine piston room is the pressurized gas with elevated pressures, its force value is enough to back down gas recovery approach one-way valve 105, recovering mechanism one-way valve 103 now is then in closed condition, thus pressurized gas can be made to enter into pressurized gas store in pipeline 100 and be stored.
Existing this pressurized gas recovering device owing to devising one-way valve reed structure in intake duct, one-way valve reed can block a part of circulation area in intake duct, decrease air inflow, thus the performance of motor can be affected, this reliability of structure is also poor simultaneously, easily causes because reed is tired leaking when Long-Time Service.
Summary of the invention
The present invention is to overcome above-mentioned defect of the prior art, and provide a kind of engine compresses gas concentration unit and method of improvement, it not only can ensure enough air inflows, also has enough reliabilities, can long-term work and do not produce leakage.
For achieving the above object, the invention provides following technological scheme:
A kind of engine compresses gas concentration unit, comprise the body be arranged between the relief opening of motor and suction port, described body comprises the first noumenon, the second body and the 3rd body that stack successively, wherein: described the first noumenon is connected with the relief opening of motor, which is provided with at least one to store the pressurized gas that pipeline is connected with pressurized gas and reclaim air flue; This first noumenon is also provided with the through hole that at least one corresponds to the relief opening of motor, be provided with an one-way valve closed when engine suction in this through hole, the both sides of this one-way valve are provided with two valve blind holes; Described second body offers the three gas port type through holes that at least one is corresponding with the relief opening of motor, three gas ports on this through hole are spaced from each other and arrange in yi word pattern; A middle gas port is the intake duct of a sleeve configuration, and the entrance of this intake duct is closed by described one-way valve, and outlet and the pressurized gas on described the first noumenon of this intake duct reclaim air flue and be connected; Two gas ports on both sides are reducing holes corresponding with described valve blind hole, and the large mouth in each reducing hole is all towards described the first noumenon; A valve is equipped with in each reducing hole, described valve is flexibly connected with described second body by a valve swing arm, lift when this valve swing arm and block the reducing hole corresponding with it to valve described during top dead center, when this valve swing arm drops down onto lower dead center, described valve paste is combined in the valve blind via bottom corresponding with it; Described 3rd body offers at least one through hole corresponding with the suction port of motor.
In technique scheme, the bottom of the valve blind hole on described the first noumenon is slope, and its angle of inclination corresponds to the angle of inclination that described valve has when the valve swing arm of correspondence is in lower dead center.
In technique scheme, the valve on described second body is dish-shaped valve.
In technique scheme, the through hole on the through hole on the through hole on described the first noumenon, described second body and described 3rd body is the square opening with knuckle.
In technique scheme, the cracking pressure of described one-way valve is 0.5MPa.
In technique scheme, described one-way valve is reed-type one-way valve, and its reed faces the entrance of the intake duct of described second body, when this reed is by jack-up, forms gas passageway between the intake duct of described one-way valve and described second body.
In technique scheme, described reed is titanium alloy reed.
In technique scheme, the described 3rd is provided with one deck pad between body and engine intake, this pad offers the through hole corresponding to engine intake.
A kind of engine compresses Gas recovering method, comprise inhalation step and pressurized gas recycling step, wherein: described inhalation step carries out when engine suction, it comprises and all drops on the valve swing arm on described second body down to position, makes the bottom of the valve blind hole of valve paste on described the first noumenon be connected with described valve swing arm; Described pressurized gas recycling step carries out when motor zero load exhaust, and it comprises all lifts to the valve swing arm on described second body to position, makes the valve closing be connected with described valve swing arm, the gas circuit between the relief opening of isolated motor and suction port.
Compared with prior art, the present invention has following beneficial effect:
1, in three gas port type through holes of the second body, two valves are devised, when this two valve opens, its gas passageway formed has enough large circulation area, can ensure air inflow during engine suction, thus can not cause harmful effect to engine performance.
2, the reed that titanium alloy is made has enough strong elastic force and sufficiently high fatigue resistance, can not only when one-way valve opening/closing switching high speed switching position, good service behaviour can also be kept for a long time, this just makes one-way valve not only have the performance switched at a high speed, also there is operating life steady in a long-term, be particularly suitable for using in the pressurized gas recovering device of air hybrid motor.
3, dish-shaped valve is more even than the distribution of force of other shape valves, good sealing effect, and especially when valve needs long-term folding to switch, the valve block of its dish is not easy to produce and destroys, and can keep stable sealing effect.
4, the valve blind via bottom on the first noumenon is designed to slope, and the oblique angle of valve is consistent when the angle of inclination on this slope and valve swing arm are in lower dead center, this makes it possible to make valve under opening-wide state, be in the state of a uniform stressed, and motor is in suction condition and normal being with during loaded-up condition all needs valve to be in such opening-wide state, so this slope can prevent valve from because of long-term discontinuity, breakage or hydraulic performance decline occurring too early.
Accompanying drawing explanation
Fig. 1 is existing single air flue compression gas concentration unit structural representation;
Single cylinder position of the present invention view when Fig. 2 is engine suction;
Fig. 3 is single cylinder position of the present invention view when reclaiming pressurized gas;
Fig. 4 is the plan view of the first noumenon;
Fig. 5 is the worm's eye view of the first noumenon;
Fig. 6 is the plan view of the second body;
Fig. 7 is the worm's eye view of the second body;
Fig. 8 is the plan view of the 3rd body;
Fig. 9 is the worm's eye view of the 3rd body.
Mark the following drawings mark thereon by reference to the accompanying drawings:
100-pressurized gas stores pipeline, 101-cylinder head suction port, and 102-reclaims window, 103-recovering mechanism one-way valve, 104-suction tude, 105-gas recovery approach one-way valve, 1-cylinder head, 2-one-way valve, 3-the first noumenon, 301-through hole, 302-pressurized gas reclaims air flue, 303-valve blind hole, 4-dish valve, 5-titanium alloy reed, 6-intake duct, 7-second body, 701-through hole, 702-reducing hole, the swing arm of 8-valve, 9-the 3rd body, 901-through hole, 10-pad, 11-suction port, 12-relief opening.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
As shown in Figure 1, be the present invention for the structural drawing of prior art.
For prior art, an object of the present invention is to provide a kind of engine compresses gas concentration unit, and two of object is to provide a kind of engine compresses Gas recovering method.In order to the convenience illustrated, up/down mentioned in the following examples and accompanying drawing 4 to 9, bow/face upward and upper to/down to relation be all with the first noumenon in device body of the present invention be under, the 3rd body is upper.This explanation is only used to the relative position relation of all parts in clear expression device, and does not represent the restriction to actual arrangement mode.Those skilled in the art can expect device of the present invention to place according to other directions under the prerequisite of not change structure form in the scope of prior art, are included in protection scope of the present invention equally.
device embodiment
A kind of engine compresses gas concentration unit, can be used in single cylinder or multi-cylinder (six cylinders such as shown in Fig. 4 to 9) air hybrid motor, be single cylinder position schematic diagram wherein as shown in Figures 2 and 3.When being applicable to multi-cylinder position, each cylinder position corresponding for the structure shown in Fig. 2 and 3 is carried out arranging.Six cylinders of the present embodiment are only illustrative citings, do not represent the restriction to mode of execution.
Above-mentioned engine compresses gas concentration unit comprises the body be arranged between relief opening 12 in the cylinder head 1 of motor and suction port 11.During engine suction, outside air enters from suction port 11; When engine compresses gas reclaims, the pressurized gas in piston cylinder is discharged from relief opening 12.Above-mentioned body comprises the first noumenon 3, second body 7 and the 3rd body 9 that stack successively.Arrow in Fig. 2 and 3 represents the gas flow under shown position respectively.Be provided with one deck pad 10 between 3rd body 9 and suction port 11, this pad 10 offer the through hole corresponding to suction port 11.The first noumenon 3 is connected with relief opening 12.
As shown in Figures 4 and 5, the first noumenon 3 is provided with six and stores with pressurized gas pressurized gas that pipeline is connected and reclaim the through holes 301 that air flue 302 and six correspond to relief opening 12.Be provided with an one-way valve 2 closed when engine suction in through hole 301, the both sides of this one-way valve 2 are provided with two valve blind holes 303, and the bottom of valve blind hole 303 is slopes.
As shown in Figures 6 and 7, the second body 7 offers six three gas port type through holes 701 corresponding with relief opening 12, three gas ports on this through hole 701 are spaced from each other and arrange in yi word pattern.A middle gas port is the intake duct 6 of a sleeve configuration, and the entrance of this intake duct 6 is closed by one-way valve 2, and outlet and the pressurized gas on the first noumenon 3 of this intake duct 6 reclaim air flue 302 and be connected.Two gas ports on both sides are reducing holes 702 corresponding with valve blind hole 303, and the large mouth in each reducing hole 702 is all towards the first noumenon 3.Be equipped with a dish-shaped valve 4 in each reducing hole 702, each dish-shaped valve 4 is flexibly connected with the second body 7 by a valve swing arm 8.
As shown in Figure 3, lift when two valve swing arms 8 and block two the reducing holes 702 corresponding with it to dish valve 4 during top dead center, the gas circuit between suction port 11 and relief opening 12 is disconnected.As shown in Figure 2, when two valve swing arms 8 drop down onto lower dead center, dish valve 4 is fitted at the bottom of the slope of the valve blind hole 303 corresponding with it, and gas can be entered in motor swimmingly from suction port 11.In order to make the uniform force of dish-shaped valve 4, the angle of inclination of slope corresponds to the angle of inclination that dish-shaped valve 4 has when the valve swing arm 8 of correspondence is in lower dead center.
As shown in FIG. 8 and 9, the 3rd body 9 offers six through holes 901 corresponding with suction port 11.For the ease of being arranged to multi-cylinder form side by side, through hole 301 and 901 is all designed to the square opening with knuckle.
Because suction pressure during engine suction is generally less than 0.2MPa, for preventing misoperation, one-way valve 2 is reed-type one-way valves that cracking pressure is preferably 0.5MPa, and it has the titanium alloy reed 5 of the entrance facing intake duct 6.The pressure of the pressurized gas of the indoor generation of engine piston is greater than 0.5MPa, when pressurized gas is discharged in relief opening 12, titanium alloy reed 5 can by pressurized gas jack-up, now form gas passageway between one-way valve 2 and intake duct 6, pressurized gas is known from experience and is entered into pressurized gas from intake duct 6 and reclaim in air flue 302, and then enters into pressurized gas and store pipeline and be stored.In order to ensure the recovery of pressurized gas, as shown in Figure 3, need valve swing arm 8 to lift to top dead center.When motor runs, the switch speed of airflow direction is very fast, and the elastic nature that titanium alloy reed 5 has can make it complete opening/closing switching with speed quickly.
Also there is other technology contents in said apparatus part, such as, in the first noumenon, the second body and the 3rd body means of fixation each other and gas circuit, the sealing means etc. of jointing, owing to can solve in the scope of known technology, thus no longer carefully states.
embodiment of the method
A kind of engine compresses Gas recovering method, comprises inhalation step and pressurized gas recycling step, wherein:
Inhalation step carries out when engine suction, and it comprises and all drops on the valve swing arm 8 on the second body 7 down to position, makes dish-shaped valve 4 be attached to the bottom of valve blind hole 303.
Pressurized gas recycling step carries out when motor zero load exhaust, it comprises all lifts to valve swing arm 8 to position, dish-shaped valve 4 is closed (position that the dish-shaped valve 4 namely shown in Fig. 3 seals reducing hole 702), the gas circuit between the relief opening 12 of isolated motor and suction port 11.Now pressurized air is discharged from relief opening 12, and is stored according to the flow direction of one-way valve 2 → intake duct 6 → pressurized gas recovery air flue 302 → pressurized gas storage pipeline.
The control mode of above-mentioned valve swing arm 8 according to the knowledge of those skilled in the art, can be selected flexibly according to actual needs in machinery, electronics, air pressure, hydraulic pressure and other control mode.Because the action control mode of this valve swing arm 8 can be solved by prior art, therefore no longer carefully state in the present embodiment.
Be only more excellent specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (9)
1. an engine compresses gas concentration unit, comprises the body be arranged between the relief opening of motor and suction port, it is characterized in that, described body comprises the first noumenon, the second body and the 3rd body that stack successively, wherein:
Described the first noumenon is connected with the relief opening of motor, which is provided with at least one and stores the pressurized gas that pipeline is connected with pressurized gas and reclaim air flue; This first noumenon is also provided with the through hole that at least one corresponds to the relief opening of motor, be provided with an one-way valve closed when engine suction in this through hole, the both sides of this one-way valve are provided with two valve blind holes;
Described second body offers the three gas port type through holes that at least one is corresponding with the relief opening of motor, three gas ports on this through hole are spaced from each other and arrange in yi word pattern; A middle gas port is the intake duct of a sleeve configuration, and the entrance of this intake duct is closed by described one-way valve, and outlet and the pressurized gas on described the first noumenon of this intake duct reclaim air flue and be connected; Two gas ports on both sides are reducing holes corresponding with described valve blind hole, and the large mouth in each reducing hole is all towards described the first noumenon; A valve is equipped with in each reducing hole, described valve is flexibly connected with described second body by a valve swing arm, lift when this valve swing arm and block the reducing hole corresponding with it to valve described during top dead center, when this valve swing arm drops down onto lower dead center, described valve paste is combined in the valve blind via bottom corresponding with it;
Described 3rd body offers at least one through hole corresponding with the suction port of motor.
2. engine compresses gas concentration unit according to claim 1, it is characterized in that, the bottom of the valve blind hole on described the first noumenon is slope, and its angle of inclination corresponds to the angle of inclination that described valve has when the valve swing arm of correspondence is in lower dead center.
3. engine compresses gas concentration unit according to claim 1, is characterized in that, the valve on described second body is dish-shaped valve.
4. engine compresses gas concentration unit according to claim 1, is characterized in that, the through hole on the through hole on described the first noumenon and described 3rd body is the square opening with knuckle.
5. engine compresses gas concentration unit according to claim 1, is characterized in that, the cracking pressure of described one-way valve is 0.5MPa.
6. engine compresses gas concentration unit according to claim 1, it is characterized in that, described one-way valve is reed-type one-way valve, its reed faces the entrance of the intake duct of described second body, when this reed is by jack-up, between the intake duct of described one-way valve and described second body, form gas passageway.
7. engine compresses gas concentration unit according to claim 6, is characterized in that, described reed is titanium alloy reed.
8. engine compresses gas concentration unit according to claim 1, is characterized in that, the described 3rd is provided with one deck pad between body and engine intake, this pad offers the through hole corresponding to engine intake.
9. for the recovery method of the engine compresses gas concentration unit described in claim 1-8, it is characterized in that, comprise inhalation step and pressurized gas recycling step, wherein:
Described inhalation step carries out when engine suction, and it comprises and all drops on the valve swing arm on the second body of described motor down to position, makes the bottom of the valve blind hole of valve paste on the first noumenon of described motor be connected with described valve swing arm;
Described pressurized gas recycling step carries out when motor zero load exhaust, and it comprises all lifts to the valve swing arm on described second body to position, makes the valve closing be connected with described valve swing arm, the gas circuit between the relief opening of isolated motor and suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210159767.XA CN103422891B (en) | 2012-05-22 | 2012-05-22 | Device and method for recovery of compressed gas of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210159767.XA CN103422891B (en) | 2012-05-22 | 2012-05-22 | Device and method for recovery of compressed gas of engine |
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| Publication Number | Publication Date |
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| CN103422891A CN103422891A (en) | 2013-12-04 |
| CN103422891B true CN103422891B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210159767.XA Active CN103422891B (en) | 2012-05-22 | 2012-05-22 | Device and method for recovery of compressed gas of engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111267605B (en) * | 2020-03-31 | 2023-03-28 | 重庆长安汽车股份有限公司 | Engine compartment drainage structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1934573A (en) * | 2004-02-17 | 2007-03-21 | 肯尼思·C·米勒 | Dynamically reconfigurable internal combustion engine |
| CN201891544U (en) * | 2010-11-23 | 2011-07-06 | 广西玉柴机器股份有限公司 | Recovery device of compressed air generated by engine braking |
| US8082892B2 (en) * | 2007-10-10 | 2011-12-27 | Yuanping Zhao | High efficiency integrated heat engine-2 (HEIHE-2) |
| CN202611770U (en) * | 2012-05-22 | 2012-12-19 | 广西玉柴机器股份有限公司 | Compressed gas recovery device for engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7353786B2 (en) * | 2006-01-07 | 2008-04-08 | Scuderi Group, Llc | Split-cycle air hybrid engine |
| DE102007027968A1 (en) * | 2007-06-19 | 2009-01-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Method and device for increasing the engine braking power of a reciprocating internal combustion engine of a vehicle, in particular a diesel engine |
-
2012
- 2012-05-22 CN CN201210159767.XA patent/CN103422891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1934573A (en) * | 2004-02-17 | 2007-03-21 | 肯尼思·C·米勒 | Dynamically reconfigurable internal combustion engine |
| US8082892B2 (en) * | 2007-10-10 | 2011-12-27 | Yuanping Zhao | High efficiency integrated heat engine-2 (HEIHE-2) |
| CN201891544U (en) * | 2010-11-23 | 2011-07-06 | 广西玉柴机器股份有限公司 | Recovery device of compressed air generated by engine braking |
| CN202611770U (en) * | 2012-05-22 | 2012-12-19 | 广西玉柴机器股份有限公司 | Compressed gas recovery device for engine |
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