CN202066544U

CN202066544U - Fuel consumption detector for diesel engines

Info

Publication number: CN202066544U
Application number: CN2011201816019U
Authority: CN
Inventors: 李晓
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-01
Filing date: 2011-06-01
Publication date: 2011-12-07
Anticipated expiration: 2021-06-01

Abstract

A fuel consumption detector for diesel engines comprises a master control panel, a fuel pump, a pressure reversing switch, a constant-volume cavity, a buffering fuel tank, a liquid level sensor, an effusion pipe, a liquid sensor, a main oil tank, a gas inlet pipe, peripheral equipment and data communication interface and an engine. Detection precision of the fuel consumption detector cannot be affected by external environments, the requirement on the precision of the sensors and the requirement of manufacture of a circuit are low, and conflict between high-precision detection requirement and a low-cost product is fundamentally avoided. As proved by trial of the fuel consumption detector for a certain period, the fuel consumption detector can correctly generate statistics of mileage and fuel consumption of vehicles within an optional period of time, provides powerful technical means support for effective management of an operation enterprise, is suitable for application of fuel consumption detection of various diesel-powered motor vehicles and ships, and is simple in installation and practical in detection principle.

Description

Diesel motor oil consumption pick-up unit

Technical field

The utility model relates to a kind of oil consumption pick-up unit, specifically is a kind of diesel motor oil consumption pick-up unit that is used for detecting with the diesel motor data such as the actual fuel consumption of car, ship, mileage that are power.

Background technology

Can realize at present engine fuel consumption quantity measurement scheme and the imagination in scheme mainly contain following several: 1, Weighing type, be the fuel oil that takes by weighing constant weight of equivalent and take by weighing the weight of current excess oil after a period of time again, obtain the reality fuel consumption within a certain period of time of engine by the difference of front and back weight in engine operation; 2, electronics measuring and calculating formula is promptly obtained parameters such as sending out machine delivery temperature, engine speed, vehicle wheel rotational speed, and draws the fuel consumption of vehicle as calculated; 3, flow detection formula is promptly installed the turbine type flow detecting sensor in the petroleum pipeline of engine, detect the flow velocity of fuel oil in pipe, goes out the flow of the fuel oil in the pipe then according to caliber, these calculation of parameter of flow velocity; 4, positive displacement, it detects the principle type and detects in above-mentioned Weighing type, just taking by weighing of weight has been become measuring of volume.Defective and deficiency that the existence more or less of above-mentioned these modes is certain.The mode of weighing under the working condition of actual detected, just can be stable under state that all requires vehicle to be in to stop or the metastable running status weigh and revise detected parameters, the vibration meeting havoc accuracy of detection that causes in the process of moving; Electronics measuring and calculating formula requires to have multiple sophisticated sensor and measures detection simultaneously, and is not-so-practical as a kind of daily oil consumption pick-up unit of reality; The flow sensor that the requirement of flow detection formula has degree of precision, but the detection degree of accuracy of this kind sensor is subjected to the influence of rotating speed aspects such as (rotating speed just cause the height of oil pipe flow velocity) of relative height, engine of caliber, the installation of temperature, oil pipe bigger, and one of every installation all needs calibration and debugging; The detection method of positive displacement, the method is carried out surveying work by the liquid that detects unit volume, have not to be subjected to vibrate the advantage that influences with other external condition, but the liquid that how to obtain unit volume reliably is the basic problem that requirement solves.

The utility model content

Deficiency at above-mentioned prior art existence, the utility model device provides a kind of and is installed on the vehicle and the real-time in the process of moving detection oil consumption and the diesel motor oil consumption pick-up unit of distance travelled, and the utility model Device Testing precision is not affected by the external environment and rational in infrastructure, reliable operation.

The technical solution of the utility model: diesel motor oil consumption pick-up unit, comprise master control board, oil well pump, pressure reversing switch, constant volume chamber, buffer memory fuel tank, liquid level sensor, cascading water pipe, fluid sensor, main fuel tank, draft tube, external unit and data communication interface, engine, it is characterized in that: oil well pump one side connects main fuel tank, the opposite side of oil well pump is connected with the pressure reversing switch, is provided with piston in the pressure reversing switch; Bottom, constant volume chamber is connected with buffer memory fuel tank top by the pressure reversing switch, and top, constant volume chamber is connected with main fuel tank with fluid sensor by leak-off pipe, is provided with retaining valve in the leak-off pipe, also is provided with draft tube on the constant volume chamber, also is provided with retaining valve in the draft tube; The top of buffer memory fuel tank is connected with the constant volume chamber by the pressure reversing switch, and buffer memory fuel tank bottom is connected with engine with scavenge pipe by oil pick-up tube, is provided with liquid level sensor in the buffer memory fuel tank; Liquid level sensor is connected with the input end of master control board with the signal output part of fluid sensor, also is provided with external unit and data communication interface in the master control board.

Described external unit and data communication interface comprise reverse interfaces such as mileage detector interface, Temperature Detector interface, RS232 communication port and USB communication port.

Advantage of the present utility model: 1, the utility model accuracy of detection is not affected by the external environment, accuracy of detection can not change yet in life cycle, described liquid level sensor and fluid sensor only require that all the simplest prevailing switching regulator sensor is just passable, accuracy requirement to sensor is not high, and not high to the requirement of circuit production yet, satisfied fundamentally that high-precision test requires and the contradiction between the product cheaply; 2, owing to adopt modular design, the user can be as requested freely customization function also can be docked with on the track terminal of the mounted GPS of user location, allow the user that the operational management of vehicle is realized real informationization, practicability; 3, the utility model trying out through some cycles, proof can be correct count in vehicle a period of time in office mileage, oil consumption, for the operation enterprise effective management strong technological means support is provided, the oil consumption that is applicable to various diesel cars, ship detect to be used, installs simple and easy, the detection principle is practical.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

As described in Figure 1, oil well pump 2 one sides connect main fuel tank 9, and the opposite side of oil well pump 2 is connected with pressure reversing switch 3, is provided with piston in the pressure reversing switch 3; 4 bottoms, constant volume chamber are connected with buffer memory fuel tank 5 tops by pressure reversing switch 3,4 tops, constant volume chamber are connected with main fuel tank 9 by leak-off pipe 7 and fluid sensor 8, wherein be provided with retaining valve in the leak-off pipe 7, also be provided with draft tube 10 on the constant volume chamber 4, also be provided with retaining valve in the draft tube 10; Buffer memory fuel tank 5 tops are connected with 4 bottoms, constant volume chamber by pressure reversing switch 3, and buffer memory fuel tank 5 bottom in addition is connected with engine 12 with scavenge pipe by oil pick-up tube, is provided with liquid level sensor 6 in the buffer memory fuel tank 5, also have a liquid level buoy 13 on the liquid level sensor 6; Liquid level sensor 6 is connected with the input end of master control board 1 with the signal output part of fluid sensor 8, also is provided with the external unit and the data communication interface 11 of reverse interfaces such as comprising mileage detector interface 14, Temperature Detector interface 15, RS232 communication port 16 and USB communication port 17 in the master control board 1.

The course of work of the present utility model is that (supposition is in original state, there are fuel oil and liquid level to be greater than or equal to the high position at liquid level buoy 13 places in the buffer memory fuel tank 6, this moment, oil well pump 2 was not worked, piston in the automatic pressure reversing switch 3 is pushed up the position on the left side by spring under situation about not being under pressure, this moment, constant volume chamber 4 was in conducting state with buffer memory fuel tank 5):

⑴ the fuel oils in, constant volume chamber 4 flow to buffer memory fuel tank 5 under the effect of gravity, draft tube 10 under the effect of inner and outer air pressure difference automatically conducting to keep constant volume chamber 4 and extraneous air pressure balance;

, after the fuel oil in all constant volume chambeies 4 all flow into buffer memory fuel tank 5, draft tube 10 is closed automatically;

⑶, the fuel oil in buffer memory fuel tank 5 finally are consumed, and liquid level buoy 13 is followed liquid level and descended together when arriving lower position, triggers liquid bit transmission device 6 output signals;

⑷ when, master control board 1 detect the signal that liquid level sensor 6 sends here, start oil well pump 2 with fuel delivery to automatic pressure reversing switch 3;

⑸ the pistons in, automatic pressure reversing switch 3 move right and block the pipeline of constant volume chamber 4 and 5 of buffer memory fuel tanks under the effect of pressure, at this moment, and only injection in constant volume chamber 4 of fuel oil;

, when the fuel oil in constant volume chamber 4 gradually during spill-over, unnecessary air are got back in the main fuel tank 9 with fuel oil by cascading water pipe 7 and fluid sensor 8 and are triggered fluid sensor 8 output signals and arrive master control board 1 in the constant volume chamber 4;

⑺, master control board 1 stop the work of oil well pump 2 when detecting the fuel oil spill-over signal of fluid sensor 8 output;

⑻, the pressure that acts on automatic pressure reversing switch 3 inner carriers disappear, and piston is returned to the position on the left side under the effect of spring, at this moment the pipeline conducting between constant volume chamber 4 and the buffer memory fuel tank 5;

⑼ under action of gravity, flow to buffer memory fuel tank 5 through the fuel oil of appraising and deciding volume in, the constant volume chamber 4, draft tube 10 internal check valves conducting automatically under the effect of constant volume chamber 4 inner and outer air pressure differences simultaneously;

⑽ the liquid level in, the buffer memory fuel tank 5 rises, and liquid level buoy 13 is followed the liquid level rising and met or exceeded the high position;

⑾, repetition ⑴ to the ⑽ step, can carry to realize that fuel constantly replenishes in buffer memory fuel tank 5 thus, every conveying once, master control board 1 counting once, because each operational throughput is by the deciding of the volume rigidity in constant volume chamber 4, so carry the volume in number of times and constant volume chamber 4 just can calculate the fuel oil oil consumption of engine 12 easily by reading.

Not traditional supplying with because the fuel oil of the utility model engine 12 obtains, supply with but change by buffer memory fuel tank 6 by main fuel tank 11; And the fuel oil in the buffer memory fuel tank 6 is the supply of being controlled oil well pump 2 fuel oil in constant volume chamber 5 by master control board 1 by the live signal of liquid level sensor 7 and fluid sensor 10 outputs automatically.So obtain the actual travel oil consumption of diesel car, only need master control board 1 accumulative total oil well pump 2 to supply with the conveying number of times of constant volume chamber 5 fuel oils, add each operational throughput deciding by the volume rigidity in constant volume chamber, so carry the volume in number of times and constant volume chamber just can calculate the fuel oil oil consumption of engine easily by reading, realize automatic constant volume output, its precision and reliability are indubitable.

Claims

1. diesel motor oil consumption pick-up unit, comprise master control board (1), oil well pump (2), pressure reversing switch (3), constant volume chamber (4), buffer memory fuel tank (5), liquid level sensor (6), cascading water pipe (7), fluid sensor (8), main fuel tank (9), draft tube (10), external unit and data communication interface (11), engine (12), it is characterized in that: oil well pump (2) one sides connect main fuel tank (9), the opposite side of oil well pump (2) is connected with pressure reversing switch (3), is provided with piston in the pressure reversing switch; Bottom, constant volume chamber (4) is connected with buffer memory fuel tank (5) top by pressure reversing switch (3), and top, constant volume chamber (4) is connected with main fuel tank (9) with fluid sensor (8) by leak-off pipe (7), also is provided with draft tube (10) on constant volume chamber (4); Buffer memory fuel tank (5) top is connected with constant volume chamber (4) bottom by pressure reversing switch (3), and buffer memory fuel tank (5) bottom is connected with engine (12) with scavenge pipe by oil pick-up tube, is provided with liquid level sensor (6) in the buffer memory fuel tank (5); Liquid level sensor (6) is connected with the input end of master control board (1) with the signal output part of fluid sensor (8), also is provided with external unit and data communication interface (11) in the master control board (1).

2. diesel motor oil consumption pick-up unit according to claim 1 is characterized in that: external unit and data communication interface (11) comprise mileage detector interface (14), Temperature Detector interface (15), RS232 communication port (16) and USB communication port reverse interfaces such as (17).