SU1002632A1 - I.c. engine and its operation mode - Google Patents

Description

The invention relates to mechanical engineering, in particular to methods of operation of internal combustion engines and devices for its implementation. Known cnoco & j operation of internal combustion engines by supplying gasoline to a multi-chamber carburetor equipped with throttle valves, and hydrogen to the mixer, mixing the air-gas and hydrogen-air mixtures formed and feeding the resulting stream into engine cylinders L. Also known are internal combustion engines implementing these methods, containing a multi-chamber valve, each of the chambers of which is equipped with a throttle valve and connected to the corresponding cylinder by means of a pipeline, and a hydrogen-air mixer with a hydrogen supply valve and an air damper. In the known methods, the addition of hydrogen to fresh air-fuel mixture contributes to the intensification of the combustion process, which reduces toxicity and increases fuel efficiency. The engines operating according to such methods are equipped with a separate hydrogen-air mixer, and the mixture from it is fed into the intake manifold, mine tij. However, in the known methods, no measures are taken to optimize the addition of hydrogen depending on the engine load, as a result of which the effectiveness of this additive decreases. In the engines that work by these methods, all possibilities are not used to improve the homogeneity of the three-component mixture, which also reduces their effectiveness. The purpose of the invention is to increase efficiency. The goal is achieved by the fact that the mixing of benzo-air and hydrogen-air mixtures is carried out on

sections of the carburetor chambers directly behind the throttle valves, the amount of hydrogen in the flow is set in accordance with the ratio

,., 7-f7o (+, (Z, where P is the amount of hydrogen in percent)

aL total excess air ratio

and c is determined depending on the torque on the motor shaft in accordance with the ratio

Y, (., 4,

Cr

o1--0, LO

MOVCCJ

Mr.rlax

/ MKR

-3457

(PMOX) is the torque on the motor shaft; M is the maximum torque of KpMOKc pi given speed operation mode. In engines that implement the proposed method, sections of carburetor chambers directly behind throttle valves are connected to a mixer using channels provided with throttling elements associated with throttle valves of carburetor papas, and each section is equipped with a guide device. FIG. 1 is a diagram of the power supply system of the proposed engine; FIG. 2 shows section A-A in FIG. 1) in FIG. 3 is a diagram of the directional apparatus. Internal combustion engine (not shown; contains multi-chamber carburetor 1 (Fig. 1) with throttle valves 2 and 3 installed in the chambers and 5- Air-hydrogen mixer 6 with air damper 7 and valve 8 for supplying hydrogen are connected using two channels 9 with sections 10 and 11 of carburetor chambers 4 and 5 directly behind throttle valves 2 and 3, channels 9 are equipped with throttling elements 12 and 13 connected to throttle valves 2 and 3. Sections 10 and 11 (Fig. 2) are equipped with guiding devices 1h and 15. K Each of the devices can be made in the form of an annular insert 1b. (Fig. 3) with holes 17. The proposed method and operation of the device are realized as follows. When working on hydrogen-gas / air mixture, a damper and valve

8 are open. After the hydrogen-air mixture is prepared in the mixer 6, the latter flows through one of the channels 9 to the corresponding section (in this case section 10) of the carburetor chamber 1, the degree of throttling of the passage through the cavity 4 of the carburetor 1 gasoline mixture . When opening another chamber 5 of the carburetor 1, the throttling element 13 opens and a hydrogen-air mixture begins to flow through it, and the laws

Claims (2)

opening the throttling elements 12 and 13 of the channels 9 are selected so that in sections 10 and 11 of each chamber; carburetor 1 ratio. gasoline-hydrogen air is the same, and the amount of hydrogen in the hydrogen-air mixture, and the total excess air ratio are in accordance with the engine's operating mode, using the guides 15 and 14 or the insert 16 with holes 17, a directional motion is created, which promotes better mixing of hydrogen-air and benzo-air mixture. When the air damper 7 is closed and the valve 8 is closed, the mixer 6 of the multi-chamber carburetor 1 supplies the engine with an air-gas mixture. Thus, the use of the invention, as shown by experimental studies, makes it possible to reduce fuel consumption by 810 compared with a method based on high-quality regulation due to a more even distribution of the mixture among the cylinders and by supplying the optimum composition of the mixture on all engine operating modes. . Claim 1. Method for operating an internal combustion engine by supplying gasoline B with a multi-chamber carburetor equipped with throttle valves and hydrogen into a mixer, mixing the resulting l) (. Syringe and hydrogen-air mixtures and feeding the resulting stream into the engine cylinders, different in order to increase efficiency, the mixture of the benzo-air and hydrogen-air mixtures is carried out in areas of the carburetor chambers directly behind the throttles, and the amount of hydrogen in the stream at 9 according to the ratio, 709dL47, (-9ЛПс1 5Д, where П is the amount of hydrogen in the flow in percent oL is the total coefficient of excess air, and oL is determined depending on the torque on the engine shaft in accordance with the ratio JkX .. Vl (ti, 479f- Y-, .. V. Krmoks / V KPMOKC; V KpMaKC / 3437 к-р max / where М, р is the torque on the shaft of the engine; Mcr (7s maximum torque for a given speed mode of operation. 2. An internal combustion engine containing a multi-chamber carburetor, each of the chambers of which is equipped with a throttle valve and connected to a corresponding cylinder by means of a pipeline, and a hydrogen-air mixer with a hydrogen supply valve and an air damper, characterized in that the sections of the carburetor chambers are connected directly behind the throttle valves the mixer using channels provided with throttling elements connected to the throttle valves of the carburetor chambers, and each section is equipped with Aulus yuschim apparatus. Sources of information taken into account in the examination. 1. Copyright certificate. USSR on application no., CL-P 02 B, 1979 0t / Z.f