CN105041426B - Gaseous propellant engine crankcase enclosed gas venting system - Google Patents
Gaseous propellant engine crankcase enclosed gas venting system Download PDFInfo
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- CN105041426B CN105041426B CN201510545195.2A CN201510545195A CN105041426B CN 105041426 B CN105041426 B CN 105041426B CN 201510545195 A CN201510545195 A CN 201510545195A CN 105041426 B CN105041426 B CN 105041426B
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Abstract
The invention discloses a kind of gaseous propellant engine crankcase enclosed gas venting system, including oil-gas pre-separation device, gs-oil separator, several check valves, pressure sensor, temperature sensor and oil mist concentration detection sensor, crankcase first input port of the port successively with the first check valve, gs-oil separator of breathing freely is connected, gs-oil separator oil return port is connected by the second check valve with crankcase oil return port, and the compressor gas entry ports of turbocharger are led in gs-oil separator port of breathing freely.The lubricating oil output port of turbocharger lubricating oil feed unit is connected with the bearing oil input port of turbocharger, turbo-charger bearing lubricating oil output port is connected with oil-gas pre-separation device bearing oil input port, and oil-gas pre-separation device is connected by the 3rd check valve with the second input port of gs-oil separator.Integrated level of the present invention is high, compact-sized, realizes the effective of oil gas in crankcase and releases and recycle function.
Description
Technical field
The present invention relates to a kind of gaseous propellant engine, the high gaseous propellant engine bent axle of especially a kind of safety coefficient
Case enclosed gas venting system, belongs to gaseous propellant engine manufacturing technology field.
Background technology
As the requirement both at home and abroad to all kinds of explosive motor energy-saving and emission-reduction is higher and higher, with natural gas, oil gas, ethane
It is paid more and more attention Deng the clean gas power fuel that fuel gas is fuel, but as the combustion gas one of engine power fuel
As belong to hazardous gas, security requirement of the gaseous propellant engine to complete machine and running space is very high, such as, it is necessary to gas
Pressure, temperature and oil mist concentration in engine fuel crankcase are monitored in real time；It is in due course that oil gas in crankcase is carried out
Release and recycle, these functions need the gas venting system of a set of closed cycle gaseous propellant engine crankcase specially set
To realize.
The content of the invention
The object of the present invention is to provide a kind of gas being suitable for using fuel gas such as natural gas, oil gas, ethane as fuel
The closed crankcase gas venting system of fluid fuel engine or dual fuel engine, to meet the operation of gaseous propellant engine and peace
Full property demand.
The present invention is achieved by the following technical programs：
A kind of gaseous propellant engine crankcase enclosed gas venting system, including oil-gas pre-separation device, gs-oil separator, number
A check valve, pressure sensor, temperature sensor and oil mist concentration detection sensor, crankcase port of breathing freely are single with first successively
It is connected to the first input port of valve, gs-oil separator, gs-oil separator oil return port is returned by the second check valve and crankcase
Oily port is connected, and the compressor gas entry ports of turbocharger are led in gs-oil separator port of breathing freely；Turbocharger is moistened
The lubricating oil output port of lubricating oil feed unit is connected with the bearing oil input port of turbocharger, turbo-charger shaft
Bearing lubrication oil output port is connected with oil-gas pre-separation device bearing oil input port, and oil-gas pre-separation device is breathed freely port
It is connected by the 3rd check valve with the second input port of gs-oil separator, the bearing oil output port of oil-gas pre-separation device
It is connected with turbocharger lubricating oil feed unit；Pressure sensor, temperature sensor and oil mist concentration detection sensor difference
It is connected on crankcase.
The purpose of the present invention can also further be realized by following technical measures.
Foregoing gaseous propellant engine crankcase enclosed gas venting system, wherein the oil-gas pre-separation device includes closing
Housing and housing in the several piece baffle that is staggered up and down, be respectively equipped with bearing oil input port and oil gas on the upside of housing
Pre-separate device is breathed freely port, and the bearing oil input port and oil-gas pre-separation device port of breathing freely are located at top respectively
Baffle both sides, lower housing portion is equipped with bearing oil input port.
Foregoing gaseous propellant engine crankcase enclosed gas venting system, wherein the gauge pressure range of the pressure sensor is
5~10kpa, the temperature range of the temperature sensor is 40 DEG C~125 DEG C, and the mist of oil of the oil mist concentration detection sensor is dense
Measurement journey is 0~50mg/l.
The present invention is compact-sized, integrated level is high between the crankcase of gaseous propellant engine and turbocharger, oil
Gas separating device and oil-gas pre-separation device are to the oil gas of crankcase oil gas and turbocharger oil system by filtering or centrifuging
After separation or absorption, gas enters turbocharger, and the oil sump oil of crankcase bottom is flowed back in oil cooling by check valve after coagulating, real
The effective of oil gas releases and recycles function in existing crankcase, gaseous propellant engine is run safety and reliability.In crankcase
The upper pressure sensor set respectively, temperature sensor and mistiness degree detection sensor can monitor the oil gas ginseng of crankcase in real time
Number, it is ensured that gaseous propellant engine is safe and reliable to operation.
The advantages and features of the present invention, will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments, only provide as an example referring to the drawings.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of the present invention；
Fig. 2 is the structure diagram of the oil-gas pre-separation device of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention includes oil-gas pre-separation device 1, gs-oil separator 2, several check valves, pressure sensor
3rd, temperature sensor 4 and oil mist concentration detection sensor 5, crankcase breathe freely port 61 successively with the first check valve 71, oil gas point
It is connected from device first input port 21, gs-oil separator oil return port 22 passes through the second check valve 72 and crankcase oil return port 62
It is connected, the compressor gas entry ports 81 of turbocharger 8 are led in gs-oil separator port 23 of breathing freely；Turbocharger lubrication
The lubricating oil output port 91 of oily feed unit 9 is connected with turbo-charger bearing lubricating oil input port 82, turbocharger
Bearing lubricating oil output port 83 is connected with the bearing oil input port 11 of oil-gas pre-separation device 1, oil-gas pre-separation device
Ventilative port 12 is connected by the 3rd check valve 73 with the second input port of gs-oil separator 24, the axis of oil-gas pre-separation device 1
Bearing lubrication oil output port 13 is connected with turbocharger lubricating oil feed unit 9.The effect of second check valve 72 is to prevent song
Oil gas in axle box 6 is scurried into gs-oil separator 2, and the first check valve 71 and the effect of the 3rd check valve 73 are prevented in crankcase 6
Oil gas and 8 cartridge housing oil gas of turbocharger are mutually altered.The effect of oil-gas pre-separation device 1 is the initial gross separation whirlpool during oil return
The gas mixed in the lubricating oil operation of wheel booster 8, preliminary Oil-gas Separation is carried out using the principle of gravitational settling, its
Structural shape includes the forms such as centrifugal, absorption type, filter net type, can be according to different demands reasonable selection, to reach separation oil and gas
The purpose of middle lubricating oil and gas.
In order to monitor the oil gas parameter in crankcase 6 in real time, pressure sensor 3, temperature are respectively provided with crankcase 6
Sensor 4 and oil mist concentration detection sensor 5, wherein, the range of pressure sensor 3 is 5~10kpa, the amount of temperature sensor 4
Journey is 40 DEG C~125 DEG C, and the range of oil mist concentration detection sensor 5 is 0~50mg/l, it is ensured that gaseous propellant engine operation peace
It is complete reliable.Wherein, oil mist concentration detection sensor 5 such as finds that concentration surpasses to be detected to the gas concentration in crankcase 6
Mark situation then needs that gs-oil separator is safeguarded or replaced.
As shown in Fig. 2, oil-gas pre-separation device 1 uses the principle of gravity settling separation oil gas, include the housing 10 of closing
With 2 block baffles 101 in housing 10, wherein, a block baffle 101 is fixed in 10 top of housing, is provided with air hole 102 thereon,
Easy to ventilative.Another block baffle 101 is fixed in 10 lower part of housing, and two block baffles are staggered about 101.In the present embodiment,
The right side of baffle 101 on top is equipped with bearing oil input port 11, and left side is breathed freely port 12 equipped with oil-gas pre-separation device, shell
10 lower part of body is equipped with bearing oil output port 13.
The course of work of the present invention is as follows：
（1）Arrow direction enters Oil-gas Separation by crankcase port 61 of breathing freely in oil gas such as Fig. 1 in crankcase 6
Device 2, by the filtering or centrifugation or absorption of gs-oil separator 2, by the second check valve 72 after the oil cooling in oil gas is coagulated
Flow back to the oil sump of 6 bottom of crankcase.
（2）Since turbocharger 8 is the machinery that runs at high speed, in its operational process, combustion gas inevitably between axlemolecules
Hold sealing ring and be doped into lubricating oil, and then enter the lubricating oil system of gaseous propellant engine complete machine, there are certain safety
Hidden danger.The oil gas that lubricating oil is formed by turbo-charger bearing lubricating oil output port 83 and oil-gas pre-separation device 1 successively
Enter back into gs-oil separator 2, filtered or centrifugation or absorption by the second check valve 72 flow back to 8 bottom of crankcase after oil cooling is coagulated
Oil sump.
In addition to the implementation, the present invention can also have other embodiment, all to use equivalent substitution or equivalent transformation shape
Into technical solution, all fall within the protection domain of application claims.
Claims (1)
1. a kind of gaseous propellant engine crankcase enclosed gas venting system, including it is oil-gas pre-separation device, gs-oil separator, several
Check valve, pressure sensor, temperature sensor and oil mist concentration detection sensor, the ventilative port of crankcase are single with first successively
It is connected to valve, gs-oil separator first input port, gs-oil separator oil return port passes through the second check valve and bent axle tank drainback
Port is connected, and the compressor gas entry ports of turbocharger are led in gs-oil separator port of breathing freely；Turbocharger lubrication
The lubricating oil output port of oily feed unit is connected with turbo-charger bearing lubricating oil input port, and turbo-charger bearing is slided
Oily output port is connected with the bearing oil input port of oil-gas pre-separation device, and oil-gas pre-separation device port of breathing freely passes through
3rd check valve is connected with the second input port of gs-oil separator, the bearing oil output port of oil-gas pre-separation device and whirlpool
Wheel booster lubricating oil feed unit is connected；Pressure sensor, temperature sensor and oil mist concentration detection sensor are connected on respectively
On crankcase；It is characterized in that：The oil-gas pre-separation device includes the number being staggered up and down in the housing and housing of closing
Block baffle, is respectively equipped with bearing oil input port on the upside of housing and oil-gas pre-separation device is breathed freely port, the bearing profit
Superposed baffle both sides are distinguished in lubricating oil input port and oil-gas pre-separation device port of breathing freely, and lower housing portion is equipped with bearing profit
Lubricating oil input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545195.2A CN105041426B (en) | 2015-08-31 | 2015-08-31 | Gaseous propellant engine crankcase enclosed gas venting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545195.2A CN105041426B (en) | 2015-08-31 | 2015-08-31 | Gaseous propellant engine crankcase enclosed gas venting system |
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| Publication Number | Publication Date |
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| CN105041426A CN105041426A (en) | 2015-11-11 |
| CN105041426B true CN105041426B (en) | 2018-04-13 |
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| CN201510545195.2A Active CN105041426B (en) | 2015-08-31 | 2015-08-31 | Gaseous propellant engine crankcase enclosed gas venting system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115324728A (en) * | 2022-08-08 | 2022-11-11 | 浙江吉利控股集团有限公司 | Two-stroke engine |
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| US6394078B1 (en) * | 1999-06-29 | 2002-05-28 | Dr. Ing. H.C.F. Porsche Ag | Internal-combustion engine having a ventilation system |
| CN201297195Y (en) * | 2008-11-19 | 2009-08-26 | 随州市伟业专用汽车配件厂 | Obstructing type oil-gas separator |
| CN102782265A (en) * | 2010-03-02 | 2012-11-14 | 戴姆勒股份公司 | Internal combustion engine |
| CN104454083A (en) * | 2015-01-08 | 2015-03-25 | 康明斯动力技术有限公司 | Diesel engine oil steam collecting device for power generation |
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| US5669366A (en) * | 1996-07-10 | 1997-09-23 | Fleetguard, Inc. | Closed crankcase ventilation system |
| US7204241B2 (en) * | 2004-08-30 | 2007-04-17 | Honeywell International, Inc. | Compressor stage separation system |
| KR101375449B1 (en) * | 2006-09-02 | 2014-03-17 | 만 디젤 앤 터보 에스이 | Supercharged internal combustion engine |
| US8807097B2 (en) * | 2010-01-27 | 2014-08-19 | Cummins Filtration Ip Inc. | Closed crankcase ventilation system |
| CN204941644U (en) * | 2015-08-31 | 2016-01-06 | 中船动力有限公司 | Gaseous propellant engine crankcase enclosed gas venting system |
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2015
- 2015-08-31 CN CN201510545195.2A patent/CN105041426B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6394078B1 (en) * | 1999-06-29 | 2002-05-28 | Dr. Ing. H.C.F. Porsche Ag | Internal-combustion engine having a ventilation system |
| CN201297195Y (en) * | 2008-11-19 | 2009-08-26 | 随州市伟业专用汽车配件厂 | Obstructing type oil-gas separator |
| CN102782265A (en) * | 2010-03-02 | 2012-11-14 | 戴姆勒股份公司 | Internal combustion engine |
| CN104454083A (en) * | 2015-01-08 | 2015-03-25 | 康明斯动力技术有限公司 | Diesel engine oil steam collecting device for power generation |
Non-Patent Citations (3)
| Title |
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| TBD620柴油机曲轴箱闭式通风系统应用研究;刘威，王正祥;《内燃机与配件》;20130131;第1-4页 * |
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| CN105041426A (en) | 2015-11-11 |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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