CN105545403A - Detection device for insufficient oil pressure protection system of engine - Google Patents
Detection device for insufficient oil pressure protection system of engine Download PDFInfo
- Publication number
- CN105545403A CN105545403A CN201610092364.6A CN201610092364A CN105545403A CN 105545403 A CN105545403 A CN 105545403A CN 201610092364 A CN201610092364 A CN 201610092364A CN 105545403 A CN105545403 A CN 105545403A
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- China
- Prior art keywords
- oil
- oil pressure
- pressure
- engine
- detection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a detection device for an insufficient oil pressure protection system of an engine. The insufficient oil pressure protection system comprises an alarm control instrument panel. The detection device comprises a detection oil channel and a pressure relief cavity, wherein a first end of the detection oil channel is in fluid communication with an oil pressure detection point of a main oil channel for lubricating oil of the engine, a main valve is mounted at the first end, and an oil pressure sensor is arranged at a second end of the detection oil channel and is in communication connection with the alarm control instrument panel; the pressure relief cavity is arranged on the detection oil channel and is in fluid communication with the detection oil channel, and a pressure relief valve is arranged at an entrance of the pressure relief cavity. In the invention, the detected oil pressure and the actual oil pressure of the engine are mutually independent, so that not only is the effectiveness of functions of the insufficient oil pressure protection system of the engine detected, but also the oil pressure of the engine is not lowered and the engine is protected from being damaged.
Description
Technical field
The present invention relates to engine art, particularly the detection device of the too low protective system of a kind of oil pressure of motor.
Background technique
The lubrication system of motor is its normally requisite part of work, and wherein the pressure of lubricant oil is the whether normal important indicator of its work.Current motor operationally, keeps the detection to lubricating oil pressure always, and simultaneously when lubricating oil pressure is reduced to the limit value of reporting to the police and shut down, the protection mechanism of motor can be reported to the police voluntarily and shut down, and avoids causing damage to motor.And whether this protection mechanism is effectively reliable; requisite link in engine development process often, the motor that some field uses, at before sales; also need national correlation department check and approve it and detect, and the too low protection test of oil pressure is one of its important content.For marine diesel engine; oil pressure too low protective gear Shi Chuanjian mechanism (CCS, Chinese ship inspection office, Chinese fishing inspection office etc.) carries out one of important content of model approval test to diesel engine, can directly affects diesel engine loads onto ship and sell.
The too low protective system of oil pressure comprises the oil pressure sensor that the measuring point of lubricant oil main oil gallery is installed, and when lubricating oil pressure is lower than warning with when shutting down limit value, oil pressure sensor sends signal to controlling alarm instrument panel, thus takes to report to the police and stoppage protection measure.
At present, there are three kinds to the detecting method of the too low protective system of oil pressure: (1) really reduces the lubricating oil pressure in the lubricant oil main oil gallery of motor by the method for shunting of draining the oil, thus whether the too low protective system of oil pressure detecting motor is effective; Although the method can reflect the force value of lubricant oil in motor main oil gallery really, but engine lubricating oil hypotony will inevitably produce damage to motor, cause movement parts stuck time serious, even scrap whole motor, therefore the having a big risk of the method.(2) extracted from measuring point by oil pressure sensor and put in atmosphere, now sensor does not detect any pressure, and being equivalent to oil pressure is 0, thus whether the too low protective system of oil pressure detecting motor is effective; But whether the method can only detect oil pressure too low protection act when oil pressure is 0 and open, oil pressure can not be detected and be reduced to and report to the police and shut down limit value oil pressure too low protection act and whether open.(3) accessed by oil pressure sensor in the equipment of adjustable and display pressure (at least adjustable pressure), by pressure adjusting to warning and shutdown limit value, thus whether the too low protective system of oil pressure detecting motor is effective; But this equipment belongs to precision type instrument, buying and maintenance cost higher.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide the detection device of the too low protective system of a kind of oil pressure of motor, thus overcome that existing detecting method easily loses motor, sensitivity when cannot detect limit value or the high defect of cost.
For achieving the above object, the invention provides a kind of detection device of the too low protective system of oil pressure of motor, the too low protective system of oil pressure comprises controlling alarm instrument panel, detection device comprises: detect oil duct, detect the first end of oil duct to be communicated with the oil pressure Check point fluid of the lubricant oil main oil gallery of motor, and first end is provided with main valve, the second end detecting oil duct is provided with oil pressure sensor, and oil pressure sensor and controlling alarm instrument panel communicate to connect; Pressure-releasing chamber, pressure-releasing chamber is arranged on and detects on oil duct, and pressure-releasing chamber is communicated with detection oil duct fluid, and the ingress of pressure-releasing chamber is provided with Decompression valves.
Preferably, in technique scheme, pressure-releasing chamber is vertically arranged.
Compared with prior art, the present invention has following beneficial effect:
The actual oil pressure of the oil pressure detected in the present invention and motor is separate, and whether the function that both have detected the too low protective system of engine oil pressure is effective, can not reduce again the oil pressure of motor simultaneously, ensure that motor is injury-free; Pressure-releasing chamber is sealing configuration, and detects and terminate rear lubricant oil and can flow back to motor, has both met the demand of detection, has turn reduced oil consumption, reduced cost, also avoided outflow of lubrication oil to pollute engine surface; This device is simple to operate, compact structure, without the need to newly-increased electronic component, can be mass and is arranged on for a long time on every platform motor.
Accompanying drawing explanation
Fig. 1 is the detection device according to the too low protective system of the oil pressure of motor of the present invention.
Main Reference Numerals illustrates:
1-detects oil duct, 2-pressure-releasing chamber, 3-oil pressure sensor, 4-main valve, 5-Decompression valves, 6-lubricant oil main oil gallery, 7-controlling alarm instrument panel, 8-oil pressure measuring point.
Embodiment
Below in conjunction with accompanying drawing, the specific 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.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1, detection oil duct 1, pressure-releasing chamber 2 and oil pressure sensor 3 is comprised according to the detection device of the too low protective system of the oil pressure of the motor of the specific embodiment of the invention.
The first end of detection oil duct 1 is arranged on oil pressure measuring point 8 place on engine lubricating oil main oil gallery 6, and first end is provided with main valve 4, and oil pressure sensor 3 is arranged on the second end detecting oil duct 1, and oil pressure sensor 3 communicates to connect with the controlling alarm instrument panel of motor.
Pressure-releasing chamber 2 is arranged on and detects on oil duct 1, and pressure-releasing chamber 2 is communicated with detection oil duct 1 fluid, and the ingress of pressure-releasing chamber 2 is provided with Decompression valves 5.
In prior art, the too low protective system of oil pressure of motor comprises oil pressure sensor, and this oil pressure sensor is arranged on oil pressure measuring point 8 place of lubricant oil main oil gallery 6, and oil pressure sensor and controlling alarm instrument panel communicate to connect.Preferably, as an embodiment, oil pressure sensor 3 is the oil pressure sensor in the too low protective system of oil pressure, is installed to the second end detecting oil duct 1 by the oil pressure sensor in the too low protective system of oil pressure after pulling down.
Preferably, pressure-releasing chamber 2 is vertically arranged, and when Decompression valves 5 is opened, the lubricant oil in pressure-releasing chamber 2 can flow back to and detect oil duct 1, and the lubricant oil then with motor main oil gallery flows back in engine sump tank.
Before detection, pulled down by oil pressure sensor 3 from oil pressure measuring point 8, then this detection device is arranged on oil pressure measuring point 8 place, oil pressure sensor 3 is arranged on the second end detecting oil duct 1.Opened by main valve 4, Decompression valves 5 cuts out, engine lubricating oil flows into from main oil gallery 6 and detects in oil duct 1, and oil pressure sensor 3 normally detects the oil pressure of motor, coherent signal is delivered to controlling alarm instrument panel 7 and shows.When the too low protective system of oil pressure is detected; first main valve 4 is closed; slowly open Decompression valves 5 simultaneously; the lubricant oil detected in oil duct 1 slowly flows in pressure-releasing chamber 2; oil pressure is caused to reduce; whether corresponding pressure signal transmission shows to controlling alarm instrument panel 7 by oil pressure sensor 3, when force value is less than or equal to the warning of motor and shuts down limit value, observe motor and report to the police and shut down.Main valve 4 and Decompression valves 5 are all opened after shutting down by motor, pressure-releasing chamber 2 and detect lubricant oil in oil duct 1 due to Action of Gravity Field and flow back to engine sump tank.After detection completes, if this detection device is installed as the accessory of motor, then opened by main valve 4, Decompression valves 5 cuts out.If the accessory not as motor is installed, then pulled down from oil pressure measuring point 8 by this detection device, oil pressure sensor 3 is reinstalled oil pressure measuring point 8 place.
Preferably, this detection device is installed on the engine for a long time, and makes main valve 4 stay open state, and work and the use of such motor are not affected, and can detect in time again simultaneously.
The actual oil pressure of the oil pressure detected in the present invention and motor is separate, and whether the function that both have detected the too low protective system of engine oil pressure is effective, can not reduce again the oil pressure of motor simultaneously, ensure that motor is injury-free; Pressure-releasing chamber is sealing configuration, and detects and terminate rear lubricant oil and can flow back to motor, has both met the demand of detection, has turn reduced oil consumption, reduced cost, also avoided outflow of lubrication oil to pollute engine surface; This device is simple to operate, compact structure, without the need to newly-increased electronic component, can be mass and is arranged on for a long time on every platform motor.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (2)
1. a detection device for the too low protective system of the oil pressure of motor, the too low protective system of described oil pressure comprises controlling alarm instrument panel, it is characterized in that, described detection device comprises:
Detect oil duct, the first end of described detection oil duct is communicated with the oil pressure Check point fluid of the lubricant oil main oil gallery of described motor, and described first end is provided with main valve, the second end of described detection oil duct is provided with oil pressure sensor, and described oil pressure sensor and described controlling alarm instrument panel communicate to connect; And
Pressure-releasing chamber, described pressure-releasing chamber is arranged on described detection oil duct, and described pressure-releasing chamber is communicated with described detection oil duct fluid, and the ingress of described pressure-releasing chamber is provided with Decompression valves.
2. the detection device of the too low protective system of the oil pressure of motor according to claim 1, is characterized in that, described pressure-releasing chamber is vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092364.6A CN105545403B (en) | 2016-02-19 | 2016-02-19 | The detection device of the too low protection system of oil pressure of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092364.6A CN105545403B (en) | 2016-02-19 | 2016-02-19 | The detection device of the too low protection system of oil pressure of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545403A true CN105545403A (en) | 2016-05-04 |
| CN105545403B CN105545403B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610092364.6A Active CN105545403B (en) | 2016-02-19 | 2016-02-19 | The detection device of the too low protection system of oil pressure of engine |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02305313A (en) * | 1989-05-19 | 1990-12-18 | Yanmar Diesel Engine Co Ltd | Apparatuses for cooling water and lubricating oil for engine |
| CN2466356Y (en) * | 2001-03-02 | 2001-12-19 | 杨谨华 | Oil-pressurized safety protection device for engine |
| CN201110203Y (en) * | 2007-07-31 | 2008-09-03 | 比亚迪股份有限公司 | Lubrication system |
| US20090205734A1 (en) * | 2008-02-20 | 2009-08-20 | Masahiko Nakatsuka | Oil passage forming member fitted with hydraulic pressure sensor |
| JP2014098344A (en) * | 2012-11-14 | 2014-05-29 | Toyota Motor Corp | Valve abnormality determination device and control device for internal combustion engine |
| CN103867253A (en) * | 2014-03-31 | 2014-06-18 | 长城汽车股份有限公司 | Oil pressure sensor, oil pressure monitoring system and method and vehicle |
| CN204344191U (en) * | 2014-11-27 | 2015-05-20 | 北汽福田汽车股份有限公司 | Lubrication system for internal combustion engine and there is its vehicle |
| CN205349458U (en) * | 2016-02-19 | 2016-06-29 | 广西玉柴机器股份有限公司 | Detection apparatus for low protection system is crossed to oil pressure of engine |
-
2016
- 2016-02-19 CN CN201610092364.6A patent/CN105545403B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02305313A (en) * | 1989-05-19 | 1990-12-18 | Yanmar Diesel Engine Co Ltd | Apparatuses for cooling water and lubricating oil for engine |
| CN2466356Y (en) * | 2001-03-02 | 2001-12-19 | 杨谨华 | Oil-pressurized safety protection device for engine |
| CN201110203Y (en) * | 2007-07-31 | 2008-09-03 | 比亚迪股份有限公司 | Lubrication system |
| US20090205734A1 (en) * | 2008-02-20 | 2009-08-20 | Masahiko Nakatsuka | Oil passage forming member fitted with hydraulic pressure sensor |
| JP2014098344A (en) * | 2012-11-14 | 2014-05-29 | Toyota Motor Corp | Valve abnormality determination device and control device for internal combustion engine |
| CN103867253A (en) * | 2014-03-31 | 2014-06-18 | 长城汽车股份有限公司 | Oil pressure sensor, oil pressure monitoring system and method and vehicle |
| CN204344191U (en) * | 2014-11-27 | 2015-05-20 | 北汽福田汽车股份有限公司 | Lubrication system for internal combustion engine and there is its vehicle |
| CN205349458U (en) * | 2016-02-19 | 2016-06-29 | 广西玉柴机器股份有限公司 | Detection apparatus for low protection system is crossed to oil pressure of engine |
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| Publication number | Publication date |
|---|---|
| CN105545403B (en) | 2018-09-25 |
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