CN116498432A - Piston type internal combustion engine - Google Patents

Piston type internal combustion engine Download PDF

Info

Publication number
CN116498432A
CN116498432A CN202310688340.7A CN202310688340A CN116498432A CN 116498432 A CN116498432 A CN 116498432A CN 202310688340 A CN202310688340 A CN 202310688340A CN 116498432 A CN116498432 A CN 116498432A
Authority
CN
China
Prior art keywords
cylinder
gas
piston
balance
valve
Prior art date
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.)
Pending
Application number
CN202310688340.7A
Other languages
Chinese (zh)
Inventor
李航越
李天维
汪京涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Tornado Fluid Technology Co ltd
Original Assignee
Shenzhen Tornado Fluid Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Tornado Fluid Technology Co ltd filed Critical Shenzhen Tornado Fluid Technology Co ltd
Priority to CN202310688340.7A priority Critical patent/CN116498432A/en
Publication of CN116498432A publication Critical patent/CN116498432A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

A piston internal combustion engine comprising: the device comprises a compression cylinder, a multifunctional cylinder, a balance gas tank, a combustion chamber, a fuel spraying device and a crankshaft; the balance air tank is communicated with the combustion chamber, and the piston of the compression cylinder and the piston of the multifunctional cylinder are connected with the crankshaft through connecting rods; the multifunctional cylinder is provided with a compression mode and a working mode, when the piston type internal combustion engine is started, the crankshaft drives the compression cylinder and the multifunctional cylinder to compress gas and convey the gas to the balance gas tank, and the multifunctional cylinder is in the compression mode, and the balance gas tank stores and conveys the gas to the combustion chamber; in the work mode, the intake valve may be adjusted to open to allow gas in the combustion chamber to enter the multifunction cylinder. The external arrangement mode of the combustion chamber ensures that the compression cylinder and the multifunctional cylinder only have piston volumes, and the first piston and the second piston can have larger compression ratio and expansion ratio so as to improve the high-efficiency working condition range, thereby greatly exceeding rated power output in a short time.

Description

Piston type internal combustion engine
Technical Field
The invention relates to the technical field of piston type internal combustion engines, in particular to a piston type internal combustion engine.
Background
The piston type internal combustion engine generates energy by combusting mixed gas, drives a piston to move, thereby driving a crankshaft to rotate, and finally converting the energy into mechanical energy.
Piston internal combustion engines typically consist of a cylinder, a piston, a crankshaft, a connecting rod, a valve, an ignition system, etc., and when a mixture of gases enters the cylinder, the piston moves upward, compressing the air in the cylinder while the valve closes. When the piston moves to the top dead center, the ignition system can ignite the mixed gas to burn to generate high-pressure gas, so that the piston moves downwards, at the moment, the crankshaft can rotate to drive the connecting rod to move downwards, and the linear motion of the piston is converted into the rotary motion of the crankshaft. When the piston reaches the bottom point, the valve is opened, exhaust gas is discharged, and meanwhile, new mixed gas enters the cylinder to be circularly reciprocated.
From the above, the mixed gas in the piston internal combustion engine is usually ignited and burned in the cylinder to do work to drive the piston to move, and the structure makes the compression ratio and expansion ratio of the piston have small adjusting range and narrow high-efficiency working condition range, and the traditional piston internal combustion engine has difficulty in realizing large over-rated power output in a short time without changing the chemical composition of working medium.
Disclosure of Invention
The invention mainly solves the technical problems that the combustion chamber of the piston type internal combustion engine is arranged outside to improve the compression ratio and expansion ratio adjusting range of the piston and the high-efficiency working condition range, so that the piston type internal combustion engine realizes large-scale over-rated power output in a short time.
The present application provides a piston internal combustion engine comprising: the device comprises a compression cylinder, a multifunctional cylinder, a balance gas tank, a combustion chamber, a fuel spraying device and a crankshaft; the balance gas tank is communicated with the combustion chamber, the fuel spraying device is arranged in the combustion chamber and is used for spraying fuel to the combustion chamber; the piston of the compression cylinder and the piston of the multifunctional cylinder are connected with the crankshaft through a connecting rod; the compression cylinder is provided with an air inlet valve and an air outlet valve, the air inlet valve is communicated with the outside, and the air outlet valve is communicated with the balance air tank; the multifunctional cylinder is provided with an adjustable air inlet valve and an adjustable air outlet valve, the adjustable air inlet valve is communicated with the combustion chamber, and the adjustable air outlet valve is communicated with the outside; the multifunctional cylinder is provided with a compression mode and a working mode, when the piston type internal combustion engine is started, the crankshaft drives the compression cylinder and the multifunctional cylinder to compress gas and convey the gas to the balance gas tank, the multifunctional cylinder is in the compression mode, and the balance gas tank stores and conveys the gas to the combustion chamber; in the work mode, the adjustable intake valve is opened to allow gas in the combustion chamber to enter the multifunction cylinder.
In one embodiment of the present invention, a method for manufacturing a semiconductor device,
in the working mode, when the piston volume in the multifunctional cylinder is reduced, the adjustable exhaust valve is opened, the adjustable intake valve is closed, the multifunctional cylinder is in an exhaust stroke, and gas in the multifunctional cylinder is exhausted; when the piston volume in the multifunctional cylinder is increased, the adjustable exhaust valve is closed, the adjustable air inlet valve is opened when the piston volume in the multifunctional cylinder is minimum, and is closed at a set position before the piston volume in the multifunctional cylinder reaches the maximum, and the multifunctional cylinder is in a power stroke;
in the compression mode, when the piston volume in the multifunctional cylinder becomes large, the adjustable exhaust valve is opened and the adjustable intake valve is closed, the multifunctional cylinder being in an intake stroke; when the volume of the piston in the multifunctional cylinder reaches the maximum position, the adjustable exhaust valve is closed, and then the volume of the piston in the multifunctional cylinder begins to be reduced, and the multifunctional cylinder enters a compression stroke; the adjustable intake valve opens when the multi-function in-cylinder piston volume reaches a set position prior to a minimum position.
In one embodiment, the method further comprises: the energy storage compressed air tank is connected with the balance air tank through an energy storage valve, and the energy storage compressed air tank is used for opening the energy storage valve to store the gas when the gas pressure in the balance air tank is larger than a preset value, or opening the energy storage valve when the gas pressure in the balance air tank is smaller than the preset value, so as to output the stored gas to the balance air tank.
In one embodiment, the method further comprises: the air pressure detection module is arranged on the balance air tank and is used for detecting the pressure of air in the balance air tank; when the gas pressure in the balance gas tank is larger than a preset value and larger than the gas pressure in the energy storage compressed air tank, the energy storage valve is opened, so that the gas in the balance gas tank enters the energy storage compressed air tank; when the gas pressure in the balance gas tank is smaller than a preset value and smaller than the gas pressure in the energy storage compressed air tank, the energy storage valve is opened, so that the gas in the energy storage compressed air tank enters the balance gas tank.
In one embodiment, the combustion chamber is located inside the balancing cylinder.
In one embodiment, the combustion chamber is provided with an air inlet, and the injection port of the fuel injection device faces the air inlet.
In one embodiment, the intake valve is provided to the compression cylinder, and the exhaust valve is provided to the balance cylinder.
In one embodiment, the injection quantity of the fuel injection device is adjustable.
In one embodiment, the method further comprises: and the air inlet device is communicated with the air inlet valve and is used for conveying gas.
In one embodiment, the method further comprises: and the exhaust device is communicated with the adjustable exhaust valve and is used for guiding gas to be exhausted.
The piston internal combustion engine according to the above embodiment includes: the device comprises a compression cylinder, a multifunctional cylinder, a balance gas tank, a combustion chamber, a fuel spraying device and a crankshaft; the balance gas tank is communicated with the combustion chamber, the fuel spraying device is arranged in the combustion chamber and is used for spraying fuel to the combustion chamber; the piston of the compression cylinder and the piston of the multifunctional cylinder are connected with the crankshaft through a connecting rod; the compression cylinder is provided with an air inlet valve and an air outlet valve, the air inlet valve is communicated with the outside, and the air outlet valve is communicated with the balance air tank; the multifunctional cylinder is provided with an adjustable air inlet valve and an adjustable air outlet valve, the adjustable air inlet valve is communicated with the combustion chamber, and the adjustable air outlet valve is communicated with the outside; the multifunctional cylinder is provided with a compression mode and a working mode, when the piston type internal combustion engine is started, the crankshaft drives the compression cylinder and the multifunctional cylinder to compress gas and convey the gas to the balance gas tank, the multifunctional cylinder is in the compression mode, and the balance gas tank stores and conveys the gas to the combustion chamber; in the work mode, the adjustable intake valve is opened to allow gas in the combustion chamber to enter the multifunction cylinder. The combustion chamber is arranged outside the compression cylinder and the multifunctional cylinder, the compression cylinder and the multifunctional cylinder are internally provided with piston volumes, so that the first piston and the second piston can have larger compression ratio and expansion ratio, the high-efficiency working condition range is improved, and the piston type internal combustion engine can realize large-scale overdetermined power output in a short time.
Drawings
FIG. 1 is a schematic diagram of a working mode of a piston internal combustion engine according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a compression mode of a piston type internal combustion engine according to an embodiment of the present invention.
Reference numerals:
compression cylinder 10, intake valve 11, exhaust valve 12, first piston 13, first connecting rod 14, intake device 15, multifunction cylinder 20, adjustable intake valve 21, adjustable exhaust valve 22, second piston 23, second connecting rod 24, exhaust device 25, balance cylinder 30, combustion chamber 40, intake port 41, injection device 50, crankshaft 60, stored energy compressed air tank 70, storage valve 71, and air pressure detection module 80.
Detailed Description
The invention will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.
Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.
The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.
Piston engines are used to drive vehicles in motion, and conventional piston engines typically operate with four strokes: intake stroke, compression stroke, power stroke, and exhaust stroke. During the intake stroke, the piston moves toward bottom dead center, the intake valve opens, the exhaust valve closes, and gas enters the cylinder. During the compression stroke, the piston moves toward top dead center, compressing the gas, and both the intake and exhaust valves are closed. In the power stroke stage, the ignition system ignites the gas, generates combustion to form high-pressure gas, and enables the piston to move towards the bottom dead center. During the exhaust stroke, the piston moves toward top dead center, the exhaust valve opens, the intake valve closes, and exhaust gas formed after combustion is discharged.
The gas is compressed and ignited in the cylinder, and the compression ratio and the expansion ratio are narrow or not adjustable in adjustable range because the volume of the piston in the cylinder is limited and the stroke of the piston is fixed, so that the working efficiency under the common working condition is reduced; further, it is difficult to output a large power exceeding the rated power to the piston internal combustion engine in a short time.
Referring to fig. 1, a piston type internal combustion engine provided in this embodiment includes: compression cylinder 10, multi-function cylinder 20, balancing cylinder 30, combustion chamber 40, fuel injection device 50, and crankshaft 60.
The balance gas tank 30 communicates with the combustion chamber 40, and a fuel injection device 50 is mounted to the combustion chamber 40, and the fuel injection device 50 is configured to inject fuel, which may be fuel oil, gas or the like, into the combustion chamber 40.
In one embodiment, the combustion chamber 40 is made of a high temperature and pressure resistant material and the balancing cylinder 30 is made of a high pressure resistant material.
The piston of the compression cylinder 10 and the piston of the multifunctional cylinder 20 are connected with the crankshaft 60 through connecting rods, and in the stage of starting the piston type internal combustion engine, the crankshaft 60 can be driven to rotate through a starter so as to drive the piston of the compression cylinder 10 and the piston of the multifunctional cylinder 20 to reciprocate in the directions of a top dead center and a bottom dead center in the respective cylinders, and compress gas.
Specifically, the compression cylinder 10 has a first piston 13 and a first connecting rod 14, one end of the first connecting rod 14 is rotatably connected to the first piston 13, and the other end of the first connecting rod 14 is rotatably connected to the crankshaft 60. The multifunctional cylinder 20 has a second piston 23 and a second connecting rod 24, one end of the second connecting rod 24 is rotatably connected to the second piston 23, and the other end of the second connecting rod 24 is rotatably connected to a crankshaft 60.
The compression cylinder 10 has an intake valve 11 and an exhaust valve 12, the intake valve 11 being in communication with the outside, more specifically, the intake valve 11 being in communication with the outside atmosphere, and the exhaust valve 12 being in communication with the balance cylinder 30 in a state in which the intake valve 11 is open, allowing outside air to enter the interior of the compression cylinder 10.
In the present embodiment, the intake valve 11 is provided at the top of the compression cylinder 10, and the exhaust valve 12 is provided on the balance cylinder 30.
The multifunction cylinder 20 has an adjustable intake valve 21 and an adjustable exhaust valve 22, and the adjustable intake valve 21 and the adjustable exhaust valve 22 are valves that respectively adjust an intake time (or an intake air amount) and an exhaust time (or an exhaust amount). In some embodiments, solenoid valves may be used for both the adjustable intake valve 21 and the adjustable exhaust valve 22. The adjustable intake valve 21 communicates with the combustion chamber 40, the adjustable exhaust valve 22 communicates with the outside, and more specifically, the adjustable exhaust valve 22 communicates with the outside atmosphere, and exhaust gas generated after combustion in the combustion chamber 40 can be exhausted from the adjustable exhaust valve 22 to the outside through the multifunctional cylinder 20.
The multifunctional cylinder 20 has a compression mode and a working mode, and when the piston type internal combustion engine is started and the multifunctional cylinder 20 is in the compression mode, the crankshaft 60 drives the first piston 13 of the compression cylinder 10 and the second piston 23 of the multifunctional cylinder 20 through the first connecting rod 14 and the second connecting rod 24, respectively, to compress gas and deliver the gas to the balance gas tank 30, and the balance gas tank 30 stores and delivers the gas to the combustion chamber 40. In the working mode, the air inlet valve 21 can be adjusted to open so that the gas in the combustion chamber 40 enters the multifunctional cylinder 20, the fuel injection device 50 injects fuel into the combustion chamber 40, under the action of the ignition system, the fuel combusts so that high-pressure gas is generated in the combustion chamber, thereby driving the second piston 23 to do work, and the second connecting rod 24 drives the crankshaft 60 to rotate, and the rotating crankshaft 60 can drive the first piston 13 to reciprocate through the first connecting rod 14 while outputting mechanical energy to drive the vehicle to move, so that the compressed cylinder 10 continuously compresses air.
In the present embodiment, by adjusting the intake time of the adjustable intake valve 21, the amount of intake air from the combustion chamber 40 into the multi-functional cylinder 20 can be adjusted, and thus, a sufficient amount of high-pressure gas can be supplied to the multi-functional cylinder 20 in a short time, the efficiency of the multi-functional cylinder 20 in the compression mode can be improved, and further, the present piston internal combustion engine can realize a large-scale overdriving power output in a short time.
When the vehicle is braked, the multifunction cylinder 20 is in the compression mode, and the second piston 23 is driven to compress the gas by driving the second connecting rod 24 through the crankshaft 60.
In the present embodiment, the fuel injection amount of the injection fuel device 50 is adjustable, and the compression ratio and the expansion ratio of the present piston type internal combustion engine and the mass flow rate ratio of the compression cylinder 10 and the multifunction cylinder 20 in a short time can be changed by changing the opening/closing time of the adjustable intake valve 21 and the adjustable exhaust valve 22 and the injection amount of the injection fuel device 50, so that the thermal cycle mode of the present piston type internal combustion engine can be changed. The combustion chamber 40 is externally arranged outside the compression cylinder 10 and the multifunctional cylinder 20, and only the piston volume is arranged in the compression cylinder 10 and the multifunctional cylinder 20, so that the first piston 13 and the second piston 23 can have larger compression ratio and expansion ratio, the working condition range of high efficiency is improved, and further, the piston type internal combustion engine can realize large-scale overdriving power output in a short time.
In the power mode, as shown in fig. 1, the multifunctional cylinder 20 may perform an exhaust stroke and a power stroke, specifically, when the piston volume in the multifunctional cylinder 20 becomes small, that is, when the second piston 23 moves from the bottom dead center to the top dead center, the adjustable exhaust valve 22 is opened and the adjustable intake valve 21 is closed, the multifunctional cylinder 20 is in the exhaust stroke, and the gas in the multifunctional cylinder 20 is exhausted (the direction of the gas exhaust is shown by an arrow at the adjustable exhaust valve 22 in fig. 1). When the piston volume in the multifunctional cylinder 20 becomes larger, that is, the second piston 23 moves from the top dead center to the bottom dead center, the adjustable exhaust valve 22 is closed, the adjustable intake valve 21 is opened when the piston volume in the multifunctional cylinder 20 is the smallest, so that the gas in the combustion chamber 40 enters the multifunctional cylinder 20, the second piston 23 is pushed to move from the top dead center to the bottom dead center, the adjustable intake valve 21 is closed at the set position before the piston volume in the multifunctional cylinder 20 reaches the largest, and the reciprocating cycle is performed, so that the multifunctional cylinder 20 is in a power stroke, the crankshaft 60 is driven to rotate by the second connecting rod 24, the rotating crankshaft 60 can drive the first piston 13 to compress the gas in the compressed cylinder 10 by the first connecting rod 14, and the compressed gas is conveyed to the balance gas tank 30 for storage.
In the compression mode, as shown in fig. 2, i.e., when the present piston type internal combustion engine is started, the multifunction cylinder 20 can perform an intake stroke and a compression stroke, specifically, when the piston volume in the multifunction cylinder 20 becomes large, i.e., the second piston 23 moves from the top dead center to the bottom dead center, the adjustable exhaust valve 22 is opened and the adjustable intake valve 21 is closed, and the multifunction cylinder 20 is in the intake stroke. When the piston volume in the multifunction cylinder 20 reaches the maximum position, the adjustable exhaust valve 22 closes, and then the piston volume in the multifunction cylinder 20 begins to decrease, and the multifunction cylinder 20 enters the compression stroke. The inlet valve 21 is adjusted to open when the piston volume in the multifunction cylinder 20 reaches a set position before the minimum position, and so cycle back and forth, such that the multifunction cylinder 20 is in compression mode.
In the present embodiment, as shown in fig. 1, four multi-functional cylinders 20 are provided, and in the power mode, when the first and third multi-functional cylinders 20 perform the exhaust stroke, the second and fourth multi-functional cylinders 20 perform the power stroke, and when the first and third multi-functional cylinders 20 perform the power stroke, the second and fourth multi-functional cylinders 20 perform the exhaust stroke. In the compression mode, the second and fourth multifunctional cylinders 20 perform a compression stroke when the first and third multifunctional cylinders 20 perform an intake stroke, and the second and fourth multifunctional cylinders 20 perform an intake stroke when the first and third multifunctional cylinders 20 perform a compression stroke.
In one embodiment of the present application, the operating pressure of the combustion chamber 40 is 20atm to 100atm, and when the pressure of the combustion chamber 40 is greater than 15atm, the fuel injection device 50 injects fuel into the combustion chamber 40 and ignites the gas in the combustion chamber 40 by the ignition system, so that the gas pressure in the combustion chamber 40 rapidly increases. When the pressure of the combustion chamber 40 is greater than 20atm, the multifunctional cylinder 20 can enter a working mode.
In this application, when the vehicle is braked, the crankshaft 60 drives the second connecting rod 24 to drive the second piston 23 to compress the gas, so that the multifunctional cylinder 20 is in a compressed mode, the high-pressure gas generated in the compressed mode is stored, and when the gas pressure in the balance gas tank 30 is reduced, the stored gas can be conveyed into the balance gas tank 30 to compensate the gas in the balance gas tank 30, so that the kinetic energy of the vehicle can be recovered and reused.
It will be appreciated that when the multifunctional cylinder 20 is in the compression mode, the adjustable exhaust valve 22 is opened, so that the external air enters the multifunctional cylinder 20 first, then the adjustable exhaust valve 22 is closed, the second connecting rod 24 pushes the second piston 23 to move from the bottom dead center to the top dead center under the action of the crankshaft 60, so that the air is compressed by the second piston 23, when the second piston 23 is about to move to the top dead center, the adjustable intake valve 21 is opened, so that the compressed air enters the balance air tank 30, so that the air pressure in the balance air tank 30 is increased, and when the air pressure is greater than the set pressure value of the balance air tank 30, the air compressed by the multifunctional cylinder 20 in the compression mode can be stored in other manners.
Specifically, the piston internal combustion engine provided in this embodiment further includes: the energy storage compressed air tank 70, the energy storage compressed air tank 70 is connected with the balance air tank 30 through the energy storage valve 71, the energy storage compressed air tank 70 is used for opening the energy storage valve 71 to store gas when the gas pressure in the balance air tank 30 is greater than a preset value, or opening the energy storage valve 71 to output the stored gas to the balance air tank 30 when the gas pressure in the balance air tank 30 is less than the preset value, so that the gas pressures in the balance air tank 30 and the energy storage compressed air tank 70 can reach an equilibrium state.
It will be appreciated that when the vehicle is braked such that the multifunction cylinder 20 is in the compressed mode, compressed gas is first introduced into the balance gas tank 30, and when the pressure in the balance gas tank 30 is greater than its set value (i.e., a preset value), the accumulator valve 71 is opened to allow the gas in the balance gas tank 30 to be introduced into the accumulator compressed air tank 70 for storage.
In one embodiment, when the vehicle is braked, the compression cylinder 10 and the multifunction cylinder 20 are both in a compression stroke operating state, and compressed gas can be stored in the stored energy compressed air tank 70. The compressed gas stored in the stored energy compressed air tank 70 can be used when driving the vehicle to move, thereby achieving the purpose of saving fuel.
In the present embodiment, the injection amount of the fuel injection device 50 is adjustable, and the pressure in the balance gas tank 30 is maintained in a set pressure state (set pressure value) by adjusting the injection amount of the fuel injection device 50. The specific process is as follows: after the compression cylinder 10 delivers the compressed gas to the balance cylinder 30, the gas enters the combustion chamber 40, and the injection fuel device 50 injects fuel into the combustion chamber 40 and causes the fuel to be mixed with the gas for combustion by the ignition system.
In one embodiment, the combustor 40 pressure set point is 60atm and the fuel injection device 50 is controlled to operate by the fuel automatic controller. When the pressure of the combustion chamber 40 is lower than 60atm, the fuel automatic controller increases the fuel injection amount of the fuel injection device 50, increases the combustion product gas temperature, and thus increases the specific volume of the combustion product gas, reduces the consumption of the combustion product gas, and increases the gas pressure in the combustion chamber 40. When the pressure of the combustion chamber 40 is higher than 60atm, the fuel automatic controller reduces the fuel injection amount of the fuel injection device 50, reduces the combustion product gas temperature, and thus reduces the specific volume of the combustion product gas, increases the consumption of the combustion product gas, and reduces the gas pressure in the combustion chamber 40.
When the multifunctional cylinder 20 is in the working mode, the gas in the balance gas tank 30 enters the multifunctional cylinder 20 to push the second piston 24 to do work, and at this time, the gas pressure value in the balance gas tank 30 is relatively reduced, so that the compensation can be performed in a mode of injecting fuel by the fuel injection device 50 to generate high-pressure gas.
Of course, if the volume of the balance air tank 30 is large enough to make the fluctuation of the air pressure value in the balance air tank 30 small, at this time, the compressed air in the energy storage compressed air tank 70 can be delivered to the balance air tank 30 by opening the energy storage valve 71 to compensate the air pressure in the balance air tank 30, so that the injection amount of the fuel injection device 50 can be reduced, or the fuel is not injected, thereby achieving the purpose of saving fuel.
To facilitate detection of the gas pressure in the balance gas tank 30, the piston internal combustion engine provided in this embodiment further includes: the air pressure detection module 80, the air pressure detection module 80 is installed in the balance air tank 30, and the air pressure detection module 80 is used for detecting the pressure of the air in the balance air tank 30. When the air pressure detection module 80 detects that the air pressure in the balance air tank 30 is greater than the preset value and greater than the air pressure in the stored-energy compressed air tank 70, the energy storage valve 71 is opened so that the air in the balance air tank 30 enters the stored-energy compressed air tank 70 for storage. When the air pressure detection module 80 detects that the air pressure in the balance air tank 30 is less than the preset value and less than the air pressure in the stored-energy compressed air tank 70, the energy storage valve 71 is opened to allow the air in the stored-energy compressed air tank 70 to enter the balance air tank 30.
In one embodiment of the present application, the combustion chamber 40 is located inside the balance gas tank 30, and installation space of the combustion chamber 40 and the balance gas tank 30 can be saved.
The combustion chamber 40 is provided with an intake port 41, and an injection port of the injection fuel device 41 faces the intake port 41 to inject fuel into the combustion chamber 40 through the intake port 41.
When the piston type internal combustion engine or the multifunctional cylinder 20 is started and is in the compression mode, the compression cylinder 10 and the multifunctional cylinder 20 are both in the compression stroke, and in order to facilitate the supply of gas into the compression cylinder 10 through the intake valve 11, the piston type internal combustion engine provided in the present embodiment further includes: and an intake device 15, the intake device 15 being in communication with the intake valve 11, the intake device 15 being for delivering gas to supply gas into the compression cylinder 10.
The air inlet 15 may be an air inlet line, although in some embodiments the air inlet 15 may also deliver air in a pressurized manner.
In the working mode, the exhaust valve 22 can be adjusted to be opened for exhausting, so as to facilitate exhausting of gas, the piston type internal combustion engine provided in this embodiment further includes: and an exhaust device 25, wherein the exhaust device 25 is communicated with the adjustable exhaust valve 22 and is used for guiding the gas to be exhausted.
The exhaust 25 may also be an exhaust line, although in some embodiments the exhaust 25 may also filter the exhaust gases to avoid environmental pollution.
In summary, according to the piston type internal combustion engine provided by the application, the combustion chamber is arranged outside the compression cylinder and the multifunctional cylinder, the compression cylinder always compresses gas, the multifunctional cylinder can compress the gas in a compression mode, and the gas pressure in the combustion chamber can be switched to a working mode after reaching a certain pressure value, so that the compression ratio and the expansion ratio of the compression cylinder and the multifunctional cylinder can be improved. The gas burns more fully in external combustion chamber, and when reducing harmful substance in the exhaust gas, efficiency is higher, through the setting of energy storage compressed air jar, still can make this piston internal-combustion engine realize the short-time and surpass rated power output by a wide margin. And simultaneously, the energy during braking can be stored in the form of compressed gas, and the compressed gas is used for outputting power during driving, so that the fuel is saved.
The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the invention pertains, based on the idea of the invention.

Claims (10)

1. A piston type internal combustion engine, characterized by comprising: the device comprises a compression cylinder, a multifunctional cylinder, a balance gas tank, a combustion chamber, a fuel spraying device and a crankshaft; the balance gas tank is communicated with the combustion chamber, the fuel spraying device is arranged in the combustion chamber and is used for spraying fuel to the combustion chamber; the piston of the compression cylinder and the piston of the multifunctional cylinder are connected with the crankshaft through a connecting rod; the compression cylinder is provided with an air inlet valve and an air outlet valve, the air inlet valve is communicated with the outside, and the air outlet valve is communicated with the balance air tank; the multifunctional cylinder is provided with an adjustable air inlet valve and an adjustable air outlet valve, the adjustable air inlet valve is communicated with the combustion chamber, and the adjustable air outlet valve is communicated with the outside; the multifunctional cylinder is provided with a compression mode and a working mode, when the piston type internal combustion engine and the multifunctional cylinder are started and are in the compression mode, the crankshaft drives the compression cylinder and the multifunctional cylinder to compress gas and convey the gas to the balance gas tank, and the balance gas tank stores and conveys the gas to the combustion chamber; in the work mode, the adjustable intake valve is opened to allow gas in the combustion chamber to enter the multifunction cylinder.
2. A piston type internal combustion engine as set forth in claim 1 wherein,
in the working mode, when the piston volume in the multifunctional cylinder is reduced, the adjustable exhaust valve is opened, the adjustable intake valve is closed, the multifunctional cylinder is in an exhaust stroke, and gas in the multifunctional cylinder is exhausted; when the piston volume in the multifunctional cylinder is increased, the adjustable exhaust valve is closed, the adjustable air inlet valve is opened when the piston volume in the multifunctional cylinder is minimum, and is closed at a set position before the piston volume in the multifunctional cylinder reaches the maximum, and the multifunctional cylinder is in a power stroke;
in the compression mode, when the piston volume in the multifunctional cylinder becomes large, the adjustable exhaust valve is opened and the adjustable intake valve is closed, the multifunctional cylinder being in an intake stroke; when the volume of the piston in the multifunctional cylinder reaches the maximum position, the adjustable exhaust valve is closed, and then the volume of the piston in the multifunctional cylinder begins to be reduced, and the multifunctional cylinder enters a compression stroke; the adjustable intake valve opens when the multi-function in-cylinder piston volume reaches a set position prior to a minimum position.
3. The piston type internal combustion engine as set forth in claim 1, further comprising: the energy storage compressed air tank is connected with the balance air tank through an energy storage valve, and the energy storage compressed air tank is used for opening the energy storage valve to store the gas when the gas pressure in the balance air tank is larger than a preset value, or opening the energy storage valve when the gas pressure in the balance air tank is smaller than the preset value, so as to output the stored gas to the balance air tank.
4. A piston type internal combustion engine as set forth in claim 3, further comprising: the air pressure detection module is arranged on the balance air tank and is used for detecting the pressure of air in the balance air tank; when the gas pressure in the balance gas tank is larger than a preset value and larger than the gas pressure in the energy storage compressed air tank, the energy storage valve is opened, so that the gas in the balance gas tank enters the energy storage compressed air tank; when the gas pressure in the balance gas tank is smaller than a preset value and smaller than the gas pressure in the energy storage compressed air tank, the energy storage valve is opened, so that the gas in the energy storage compressed air tank enters the balance gas tank.
5. The piston internal combustion engine as set forth in claim 1, wherein said combustion chamber is located inside said balancing cylinder.
6. A piston internal combustion engine as set forth in claim 5 wherein said combustion chamber is provided with an intake port, said injection port of said fuel injection means being oriented toward said intake port.
7. The piston internal combustion engine as set forth in claim 1, wherein said intake valve is provided to said compression cylinder and said exhaust valve is provided to said balance cylinder.
8. The piston internal combustion engine as set forth in claim 1, wherein the injection amount of said injection fuel device is adjustable.
9. The piston type internal combustion engine as set forth in claim 1, further comprising: and the air inlet device is communicated with the air inlet valve and is used for conveying gas.
10. The piston type internal combustion engine as set forth in claim 1, further comprising: and the exhaust device is communicated with the adjustable exhaust valve and is used for guiding gas to be exhausted.
CN202310688340.7A 2023-06-09 2023-06-09 Piston type internal combustion engine Pending CN116498432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310688340.7A CN116498432A (en) 2023-06-09 2023-06-09 Piston type internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310688340.7A CN116498432A (en) 2023-06-09 2023-06-09 Piston type internal combustion engine

Publications (1)

Publication Number Publication Date
CN116498432A true CN116498432A (en) 2023-07-28

Family

ID=87323251

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310688340.7A Pending CN116498432A (en) 2023-06-09 2023-06-09 Piston type internal combustion engine

Country Status (1)

Country Link
CN (1) CN116498432A (en)

Similar Documents

Publication Publication Date Title
EP2406479B1 (en) Dual fuel compression ignition engines and methods
US5103645A (en) Internal combustion engine and method
CN1261944A (en) Free piston IC engine
KR20080078876A (en) Split-cycle air hybrid engine
US20100095915A1 (en) External compression two-stroke internal combustion engine with burner manifold
CN201826953U (en) Two-stroke cylinder piston engine
RU2546935C2 (en) Engine with splitted cycle
CN102725494B (en) Special homogeneous charge compression ignition engine
US20090199789A1 (en) On demand, stored, positive pressurized air injection for internal combustion engines combustion chambers
US20030140902A1 (en) CNG direct-injection into IC engine
US20100095914A1 (en) External compression two-stroke internal combustion engine
CN1740532A (en) Constant volume burning internally cooling internal combustion engine
CN101608569A (en) Changeable-stroke engine with cylinder outside compression
CN116498432A (en) Piston type internal combustion engine
KR102566865B1 (en) dual-fuel engine
CN104061058A (en) Premixing compression internal-combustion engine and operation method thereof
JP2918400B2 (en) Heat shield type gas engine with valve opening control device
KR20200130832A (en) All working conditions Channel division Time division Supercharged intake variable compression ratio technology of internal combustion engine
JP2871317B2 (en) Fuel supply system for gas engine
US6305159B1 (en) Internal combustion engine and method for the operation of an internal combustion engine
JP2918403B2 (en) 6 stroke gas engine
CN103410622A (en) KR gasoline internal combustion engine
CN104196619A (en) Later-compression-stroke carbon filling type carbon powder engine
RU2735973C1 (en) Four-stroke piston internal combustion engine with isobar heat supply and removal
CN218816672U (en) Methanol engine and motor vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination