CN103967587A - Cylinder-separated type secondary compression engine - Google Patents

Cylinder-separated type secondary compression engine Download PDF

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Publication number
CN103967587A
CN103967587A CN201310033914.3A CN201310033914A CN103967587A CN 103967587 A CN103967587 A CN 103967587A CN 201310033914 A CN201310033914 A CN 201310033914A CN 103967587 A CN103967587 A CN 103967587A
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China
Prior art keywords
air
stage compression
motor
fuel
cylinder
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Pending
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CN201310033914.3A
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Chinese (zh)
Inventor
曾礼
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曾礼
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Priority to CN201310033914.3A priority Critical patent/CN103967587A/en
Publication of CN103967587A publication Critical patent/CN103967587A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The invention relates to a cylinder-separated type secondary compression engine which is a piston type gas engine formed by a secondary compressor and a primary expansion fuel pneumatic engine. According to the cylinder-separated secondary compression engine, the air compression process and expansion process are accomplished by different air cylinders; as the secondary compression approach is adopted, the compression ratio is improved and the heat efficiency of the engine is improved.

Description

Divided cylinder type two-stage compression motor
One, technical field
" the divided cylinder type two-stage compression motor " that the present invention relates to belongs to technical field of engines.
Two, background technique
The divided cylinder type two-stage compression motor (hereinafter to be referred as two-stage compression motor) the present invention relates to is a kind of reciprocating engine being made up of two stage compressor and two major components of one-level expansion fuel pneumatic motor; This two-stage compression motor divides air compressing process and inflation process by different cylinders and completes, and improves compression ratio by the mode that adopts two-stage compression, to improve engine thermal efficiency.
Three, summary of the invention
1, the two-stage compression motor the present invention relates to is a kind of fuel engine being become by the pneumatic groups of motors of compressor and fuel; The core feature that it is different from conventional piston formula internal-combustion engine is: air compressing process and inflation process are divided by difference cylinder and completed; The process of air compressing is two-stage compression, and the process that air expands is that one-level expands, (not containing air-breathing supercharging and waste gas process turbine expansion process).
2, this two-stage compression motor can be used for great majority and the heat energy of fuel need to be converted into the occasion of mechanical energy, as for driving various types of vehicles, boats and ships, power generating equipment, compressor, oil pump, water pump and all kinds of engineering machinery etc.
3, this two-stage compression motor can be realized following functions:
(1) consume fuel obtains mechanical energy;
(2) consume the function that a small amount of energy dallies;
(3) stopping function;
(4) shut down after start-up performance again;
(5) start-stop function at any time;
The function that this two-stage compression motor is realized in application can be the part or all of of above (1)~(5) item.
4, the fuel of this two-stage compression motor can be gasoline, diesel oil, liquefied petroleum gas, natural gas, hydrogen, methyl alcohol etc., can adopt fuel combination, can utilize waste gas residual heat.
5, this two-stage compression motor can be increased work efficiency by air-breathing supercharging (engine driven supercharging or exhaust gas turbocharge).
Four, brief description of the drawings
Figure 1 shows that the air circulation principle of this two-stage compression motor.In figure, respectively number corresponding component Name as follows:
11---one-level compression cylinder and piston
12---two-stage compression cylinder and piston
13---air throttle (optional)
14---the air-breathing door of one-level compression
15---one-level compression exhaust door
16---compression interstage cooler (optional)
17---in cold Proportional valve (optional)
18---the air-breathing door of two-stage compression
19---two-stage compression exhaust valve
21---expansion cylinder and piston
22---the air-breathing door of inflation process
23---inflation process exhaust valve
24---waste gas heat utilization heat exchanger (optional)
25---UTILIZATION OF VESIDUAL HEAT IN Proportional valve (optional)
31---gas storage equipment (gas cylinder)
32---gas storage cooler (optional)
33---gas storage valve
34---gas charging valve
35---pressure-limit valve
In Fig. 1, numbering 11~19 belongs to compressor assembly, and numbering 21~25 belongs to fuel Pneumatic motor assembly, and numbering 31~35 belongs to gas storage equipment assembly.
Five, embodiment
1, the composition of two-stage compression motor
This two-stage compression motor is mainly made up of parts such as compressor, gas storage equipment, fuel pneumatic motors.
2, the abbreviation of the various functions of two-stage compression motor definition
Succinct for ease of describing, clear, first the various functions of two-stage compression motor are called for short and are defined as follows:
Function one: consume fuel obtains the circulation heat engine function of mechanical energy
Function two: consume the function that a small amount of energy keeps on the go
Function three: stopping function
Function four: start-up performance again after shutdown
Function five: start-stop function at any time
This two-stage compression motor can all be realized above function, also can select to realize wherein part of functions.
3, the approach that realizes of the various functions of two-stage compression motor
In conjunction with Fig. 1, the approach that realizes and the corresponding working principle of the various functions of gasoline-fueled two-stage compression motor is described below.
(1) realization of function one
Function one: consume fuel obtains the circulation heat engine function of mechanical energy
When this two-stage compression motor is worked by function one, compressor is carried out the task of " from nature air amount and compress ", and fuel pneumatic motor is carried out the task of " make the pressurized air heat absorption acting of expanding, after expansion, waste gas is flow back to nature ".In conjunction with Fig. 1, to being described as follows of function one links:
1., air-breathing:
Air inlet (air-filtering) → air throttle 13 (optional) → first stage piston is at top dead center position, and valve 14 is opened, descent of piston air amount, and piston runs to bottom dead center position, and valve 14 is closed, air-breathing completing.
2., compression:
The compression process of this two-stage compression motor is two-stage compression, and large and small cylinder is born respectively one-level, two-stage compression task.Compression process can be subdivided into " one-level compression → in cold (optional) → secondary air-breathing → two-stage compression " several links:
One-level compression: first stage piston is from the up beginning pressurized air of lower dead center, when pressure outside pressure in cylinder is greater than valve 15, valve 15 is opened, and piston continues up, and pressurized air is discharged from one-level cylinder, and one-level compression finishes;
In cold (optional): through after one-level compression, gas temperature raises, cold measure in now can taking gas as required.In the optionally connected logical cooling gas circuit of cold Proportional valve 17 or non-cooling bypass, or connect simultaneously in cooling gas circuit and non-cooling gas circuit adjusting cold and non-in cold air mass flow ratio.Gas circuit between high and low pressure cylinder can be taked the single type of cooling, now only retains cooler 16, Proportional valve 17 with non-in cold bypass be cancelled; Also can take single non-middle cold air road, now cooler 16, Proportional valve 17 are cancelled, between the valve 15 of compression gas circuit, valve 18 with pipeline UNICOM.
Secondary is air-breathing: second piston is at top dead center position, and valve 18 is opened, descent of piston air amount, and piston runs to bottom dead center position, and valve 18 is closed, the air-breathing end of secondary;
Two-stage compression: second piston compresses air from lower dead center is up, when pressure outside pressure in cylinder is greater than valve 19, valve 19 is opened, piston continues up, high-pressure air is discharged from cylinder and enters high-pressure gas circuit, and piston runs to top dead center, and two-stage compression finishes, valve 19 is closed, and compression process finishes.
3., heat absorption heats up, expands and do work
After air compressing, enter heat absorption intensification (for oil firing) process.In air circulation schematic diagram shown in Fig. 1, the appropriate position of high-pressure gas circuit injected petrol that can be before the air-breathing door of inflation process 22, after oil spout, gasoline mixes with air, air-breathing door 22 is opened, descent of piston sucks certain high pressure mixing oil gas, valve 22 is closed, then plug ignition outburst, and air temperature raises rapidly, volumetric expansion promotes descent of piston, piston runs to lower dead center, and inflation process finishes.
The fuel delivery mode of this two-stage compression motor can adopt the outer oil spout of cylinder to mix with air, or adopts in-cylinder direct injection, or two kinds of modes are parallel; On pressure duct before the air-breathing door 22 of inflation process, can optionally carry out (selectivity) to waste gas residual heat and utilize.
4., exhaust
After air expansion acting finishes, piston arrives lower dead center in expansion cylinder, opens expansion cylinder exhaust valve 23, piston stroking upward exhaust; When piston arrives top dead center, exhaust finishes, exhaust valve 23 cuts out, and completes a working procedure.
(2) realization of function two
Function two: consume the function that a small amount of energy keeps on the go
The function that a small amount of energy of this two-stage compression motor consumption keeps on the go, is similar to " idling " of general internal-combustion engine, and its running state can be identical with function one, but reduces air mass flow and fuel delivery, makes pneumatic circulating can overcome friction and maintains machine run.Two-stage compression motor also can (consumption mechanical energy) keep on the go under external force drives.
(3) realization of function three, function four
Function nine: stopping function
Function ten: start-up performance again after shutdown
When this two-stage compression motor need to be shut down, stop pneumatic motor feed fuels, motor waits under effect and slows down in friction, just can realize shutdown.When long-time shutdown, close gas storage valve 33, in order to avoid gas leakage impact starts next time.
The shutdown of this two-stage compression motor starts and can be accomplished in several ways, and can utilize comperssed air starting, or adopts external force to drive (as driven by starting electrical machinery).
In the time utilizing comperssed air starting; must make two-stage compression motor be parked in the appropriate location (can realize by arresting gear) in the descending process of expansion piston, need again start like this time, provide high-pressure air can promote descent of piston to expansion cylinder and realize startup.Taking Fig. 1 as example, make the resting position of pneumatic motor be fixed on the appropriate position after the top dead center of piston 21 by arresting gear, need to start time, starting drive is opened air valve 33 and valve 22, and pressurized air flows into expansion cylinder and can promote descent of piston and realize and starting.
When this two-stage compression motor utilizes comperssed air starting, must make gas cylinder air pressure maintain certain level.The approach that maintains storage pressure is: when engine running, open air valve 33, the high-pressure air that allows compression process produce is filled with gas cylinder.If in particular cases press in gas cylinder higher than design admissible value, pressure-limit valve 35 automatic deflation step-downs; While in particular cases forcing down the minimum pressure needing in starting apparatus combustion engine in gas cylinder, can utilize external air source to inflate gas cylinder.(gas storage equipment of this two-stage compression motor is mainly to arrange for the ease of the startup of motor).
(4) realization of function five
Function five: start-stop function at any time
The start-stop function at any time of this two-stage compression motor is based upon on the basis of function three, function four.
In the time that two-stage compression motor does not need outputting power, can fuel cut-off by its speed reducing stopping; In the time of its outputting power of needs, if motor shuts down, (start-stop at any time can be in conjunction with throttle and the control of power output situation to make its startup by function four, when there is no power output within the scope of certain hour, do not trigger the action of throttle yet, just stop engine oil, in the time triggering throttle, just make its running).
(5) realization of two-stage compression engine power control
It is to realize by two Basic Ways generally that the power (power) of motor is controlled: the one, change moment of torsion, and the 2nd, change rotating speed.Rotational speed regulation can realize by dynamic power machine altered self moment of torsion, also can realize by gear.To motor itself, the core of dynamic Control is to change moment of torsion.This two-stage compression engine output torque can regulate by changing fuel duty and air mass flow: in the time that needs add strong power output, increase fuel delivery and air mass flow; In the time that needs weaken power, reduce fuel delivery and air mass flow.The adjusting of fuel duty realizes by oil supply system.The adjusting of air mass flow can be carried out at two nodes, and the one, regulate gettering quantity by changing the aperture of air throttle 13 or aperture and the opening hours of change valve 14; The 2nd, regulate by changing the aperture of valve 22 and opening hours the air mass flow that participates in expansion workmanship process.(power adjustment also can only realize by changing fuel duty, does not now regulate gas handling system, only fuel delivery is increased and decreased depending on power demand).
(6) fuel of various ways, heat energy utilization and waste gas heat utilization
Above about describing as an example of gasoline example in this two-stage compression motor running principle.Due to the high-pressure gas circuit flexible arrangement as required before this two-stage compression motor expansion cylinder, this feature makes this two-stage compression motor can utilize fuel and the heat energy of various ways, and it all can use common solid-state, liquid, vaporized fuel.The mode of its acquisition heat energy, can adopt as traditional combustion engine in-cylinder combustion (above stated specification is the mode of in-cylinder combustion), can adopt the appropriate position burning in middle gas circuit, can adopt external-burning to conduct heat, can utilize using waste heat from tail gas, can adopt the heat energy of non-combustion---if solar energy etc. is (in the time utilizing the heat of the form such as coal burning, solar energy, the general mode that adopts the outer heat absorption of cylinder, in gas circuit, heat absorption scope can be chosen in the appropriate position of the pressure duct before valve 22 as shown in Figure 1).
This two-stage compression motor utilizes the flexibility of heat energy to make it can utilize all to be worth the heat energy utilizing, and waste gas heat utilization can be realized easily.In Fig. 1, if the temperature on the high-pressure gas circuit before exhaust gas temperature and expansion cylinder has the temperature difference that is enough to be worth utilization, heat exchanger can be set and utilize waste gas residual heat to heat high-pressure air, thus the utilization ratio of raising heat energy.Fig. 1 has illustrated to utilize by heat exchanger 24 and UTILIZATION OF VESIDUAL HEAT IN Proportional valve 25 are set that (effect of UTILIZATION OF VESIDUAL HEAT IN Proportional valve 25 is ratios of the gas working medium of Adjust and use waste heat for a kind of method of waste heat, in the time all utilizing waste heat, the Proportional valve 25 in Fig. 1 and non-UTILIZATION OF VESIDUAL HEAT IN gas circuit can be cancelled).
(7) being connected and drive connection of compressor and fuel pneumatic motor
This two-stage compression engine air compression process and inflation process are divided by difference cylinder and are completed, and compressor and fuel pneumatic motor belong to the subregion of independently working, and compressor is driven by fuel pneumatic motor, and they can share body and bent axle between the two, also can separate.In the time that compressor separates with the bent axle of fuel pneumatic motor, by driving mechanism transferring power, driving mechanism can be with speed changing function (can allow compressor turn round with different speed ratios from fuel pneumatic motor) between the two.
(8) by the realization of air-breathing supercharging raising acting ability
This two-stage compression motor can adopt with the similar air-breathing supercharging technology of internal-combustion engine (mechanical supercharged or exhaust gas-driven turbine supercharging) increases gettering quantity, to improve the working efficiency of pneumatic motor.

Claims (4)

1. the divided cylinder type two-stage compression motor (hereinafter to be referred as two-stage compression motor) the present invention relates to is a kind of motor being become by the pneumatic groups of motors of compressor and fuel; The core feature that it is different from conventional piston formula internal-combustion engine is: air compressing process and inflation process are divided by difference cylinder and completed; The process of air compressing is two-stage compression, and the process that air expands is that one-level expands, (not containing air-breathing supercharging and waste gas process turbine expansion process).
2. this two-stage compression motor can be used for great majority and the heat energy of fuel need to be converted into the occasion of mechanical energy, as for driving various types of vehicles, boats and ships, power generating equipment, compressor, oil pump, water pump and all kinds of engineering machinery etc.
3. the fuel of this two-stage compression motor can be gasoline, diesel oil, liquefied petroleum gas, natural gas, hydrogen, methyl alcohol etc., can adopt fuel combination, can utilize waste gas residual heat.
4. this two-stage compression motor can be increased work efficiency by air-breathing supercharging (engine driven supercharging or exhaust gas turbocharge).
CN201310033914.3A 2013-01-24 2013-01-24 Cylinder-separated type secondary compression engine Pending CN103967587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310033914.3A CN103967587A (en) 2013-01-24 2013-01-24 Cylinder-separated type secondary compression engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310033914.3A CN103967587A (en) 2013-01-24 2013-01-24 Cylinder-separated type secondary compression engine

Publications (1)

Publication Number Publication Date
CN103967587A true CN103967587A (en) 2014-08-06

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Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963759A (en) * 2015-08-03 2015-10-07 湖州新奥利吸附材料有限公司 Compression cylinder and air intake and exhaust control device of split-type internal combustion engine
CN104963760A (en) * 2015-08-03 2015-10-07 湖州新奥利吸附材料有限公司 Control system of split-type internal combustion engine
CN112243476A (en) * 2017-09-15 2021-01-19 塞尔坎·纳西尔 Submersible pump motor capable of working by compressed air

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963759A (en) * 2015-08-03 2015-10-07 湖州新奥利吸附材料有限公司 Compression cylinder and air intake and exhaust control device of split-type internal combustion engine
CN104963760A (en) * 2015-08-03 2015-10-07 湖州新奥利吸附材料有限公司 Control system of split-type internal combustion engine
CN104963760B (en) * 2015-08-03 2017-07-28 湖州新奥利吸附材料有限公司 A kind of control system of Split type internal combustion machine
CN104963759B (en) * 2015-08-03 2018-04-13 湖州新奥利吸附材料有限公司 A kind of Split type internal combustion machine compression cylinder with air intake-exhaust control device
CN112243476A (en) * 2017-09-15 2021-01-19 塞尔坎·纳西尔 Submersible pump motor capable of working by compressed air

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140806

C02 Deemed withdrawal of patent application after publication (patent law 2001)