CN114738107B - Pneumatic supercharging system and method for multi-cylinder engine - Google Patents

Pneumatic supercharging system and method for multi-cylinder engine Download PDF

Info

Publication number
CN114738107B
CN114738107B CN202210388796.7A CN202210388796A CN114738107B CN 114738107 B CN114738107 B CN 114738107B CN 202210388796 A CN202210388796 A CN 202210388796A CN 114738107 B CN114738107 B CN 114738107B
Authority
CN
China
Prior art keywords
air
chamber
exhaust
air inlet
cylinder
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.)
Active
Application number
CN202210388796.7A
Other languages
Chinese (zh)
Other versions
CN114738107A (en
Inventor
田维
杨强
刘杰
韩志强
吴学舜
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.)
Xihua University
Original Assignee
Xihua University
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 Xihua University filed Critical Xihua University
Priority to CN202210388796.7A priority Critical patent/CN114738107B/en
Publication of CN114738107A publication Critical patent/CN114738107A/en
Application granted granted Critical
Publication of CN114738107B publication Critical patent/CN114738107B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/007—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in parallel, e.g. at least one pump supplying alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/12—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
    • 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

Abstract

The invention relates to the technical field of engines, and particularly discloses a pneumatic supercharging system and method for a multi-cylinder engine. The invention adopts two supercharging devices for carrying out air inlet supercharging on the in-line four-cylinder engine, and uses the cylinder body waste gas of the in-line four-cylinder engine for supercharging, and in the supercharging process, the energy of the engine can not be lost through controlling each valve, thereby on one hand, the waste gas utilization rate is provided, on the other hand, the occurrence of air blowby between the air inlet cylinder and the air exhaust cylinder of the engine can be avoided, and the combustion efficiency is ensured.

Description

Pneumatic pressurization system and method for multi-cylinder engine
Technical Field
The invention relates to the technical field of engines, in particular to the technical field of engine pneumatic pressurization, and more particularly relates to a pneumatic pressurization system and method for a multi-cylinder engine.
Background
In order to improve the dynamic performance of the engine, the specific power and the fuel economy, a supercharging technology is developed. With the continuous development of the supercharging technology, various supercharging modes gradually appear, and at present, the main supercharging modes comprise mechanical supercharging, exhaust gas turbocharging and the like, but the supercharging modes all have certain defects. The mechanical supercharging has long energy transmission process, large friction force, serious power consumption and unsatisfactory supercharging effect. Exhaust gas turbocharging has a slow response speed due to the hysteresis and surge effect of the turbine. The above supercharging methods all consume the energy of the engine to different degrees, and the energy utilization rate of the exhaust gas is not optimal.
The utility model discloses a pressure when utilizing the engine cylinder to exhaust carries out the intake-exhaust interconnection formula piston pressure boost energy-saving engine that the pressure was carried out the pressure to the working cylinder, this utility model discloses a publication number is CN202220657U, and the publication date is 2012 years 5 months 16 days, the utility model discloses a "intake-exhaust interconnection formula piston pressure boost energy-saving engine". The intake and exhaust interconnection type piston supercharging energy-saving engine comprises at least four cylinders, wherein the side walls of the cylinder bodies of all the cylinders are communicated with an intake pipe and an exhaust manifold, and a supercharging pipe is communicated between the cylinders with opposite intake and exhaust.
The intake and exhaust interconnection type piston supercharging energy-saving engine is only provided with the supercharging pipe communicated between the cylinders with opposite intake and exhaust, the supercharging effect is not obvious, and the intake and exhaust are communicated, so that blow-by between the intake and exhaust can be caused, and the combustion efficiency in the piston cavity can be influenced.
Disclosure of Invention
The invention aims to solve the problems that the existing multi-cylinder engine supercharging mode can lose engine energy to different degrees, the waste gas utilization rate is poor, and the combustion efficiency is influenced by air intake, exhaust and blow-by. The invention adopts two supercharging devices for carrying out air inlet supercharging on the in-line four-cylinder engine, and uses the cylinder body waste gas of the in-line four-cylinder engine for supercharging, and in the supercharging process, the energy of the engine can not be lost through controlling each valve, thereby on one hand, the waste gas utilization rate is provided, on the other hand, the occurrence of air blowby between the air inlet cylinder and the air exhaust cylinder of the engine can be avoided, and the combustion efficiency is ensured.
In order to solve the problems in the prior art, the invention is realized by the following technical scheme.
A first aspect of the invention provides a pneumatic booster system for a multi-cylinder engine, the system comprises an in-line four-cylinder engine, a supercharging device I, a supercharging device II, a plurality of air inlet pipes, a plurality of exhaust pipes, an air inlet manifold and an exhaust manifold;
the supercharging device I and the supercharging device II respectively comprise a cylinder body I and a cylinder body II which are symmetrically arranged and connected together, a piston I is arranged in the cylinder body I, and a piston II is arranged in the cylinder body II; the piston I divides the inner cavity of the cylinder body I into an exhaust gas chamber I and an air chamber I, and the piston II divides the inner cavity of the cylinder body II into an exhaust gas chamber II and an air chamber II; the piston I and the piston II are connected together through a transmission rod to form a double-head pressurizing piston assembly; the transmission rod penetrates through the joint of the cylinder body I and the cylinder body II, and two ends of the transmission rod are fixedly connected to the piston I and the piston II respectively; the transmission rod penetrates through two ends of the joint of the cylinder body I and the cylinder body II and is respectively positioned in the air chamber I and the air chamber II; the transmission rod is connected with the joint of the cylinder body I and the cylinder body II in a sliding and sealing manner;
the in-line four-cylinder engine comprises an engine cylinder I, an engine cylinder II, an engine cylinder III and an engine cylinder IV, wherein an exhaust port of the engine cylinder I is communicated with a waste gas chamber I of a supercharging device I through an exhaust pipe; an air inlet of an engine cylinder I is communicated with an air chamber I of a supercharging device II through an air inlet pipe;
an air outlet of the engine cylinder II is communicated with an exhaust gas chamber II of the supercharging device I through an exhaust pipe, and an air inlet of the engine cylinder II is communicated with an air chamber I of the supercharging device I through an air inlet pipe;
an air outlet of the engine cylinder III is communicated with an exhaust gas chamber I of the supercharging device II through an exhaust pipe, and an air inlet of the engine cylinder III is communicated with an air chamber II of the supercharging device II through an air inlet pipe;
an air outlet of the engine cylinder IV is communicated with a waste gas chamber II of the supercharging device II through an exhaust pipe, and an air inlet of the engine cylinder IV is communicated with an air chamber II of the supercharging device I through an air inlet pipe;
air inlet one-way electromagnetic valves are arranged on air inlet passages of an air chamber I and an air chamber II of the supercharging device I and the supercharging device II and an engine cylinder I, an engine cylinder II, an engine cylinder III and an engine cylinder IV; exhaust check valves are arranged on exhaust passages between the engine cylinder I, the engine cylinder II, the engine cylinder III and the engine cylinder IV and between the supercharging device I and the supercharging device II;
air inlets are formed in an air chamber I and an air chamber II of the supercharging device I and the supercharging device II, all the air inlets are connected through an air inlet manifold and then collected to an air inlet main pipe, the air inlet main pipe is matched with a throttle valve in a rotating mode, and an air inlet one-way valve is arranged on an air inlet passage between the air inlets and the air inlet main pipe;
waste gas outlets are formed in the waste gas chambers I and II of the supercharging devices I and II, and all the waste gas outlets are connected through an exhaust manifold and then gathered to an exhaust manifold; an exhaust electromagnetic valve is arranged on a passage from the exhaust gas outlet to the exhaust main pipe;
the air inlet one-way electromagnetic valve, the air exhaust electromagnetic valve and the throttle valve are all connected with a vehicle-mounted computer and are controlled by the vehicle-mounted computer.
Further, the exhaust gas inlet and the exhaust gas outlet of the exhaust gas chamber I are both provided on the circumferential side of the exhaust gas chamber I, the exhaust gas inlet and the exhaust gas outlet of the exhaust gas chamber II are both provided on the circumferential side of the exhaust gas chamber II, the air inlet and the air outlet of the air chamber I are both provided on the circumferential side of the air chamber I, and the air inlet and the air outlet of the air chamber II are both provided on the circumferential side of the air chamber II.
Furthermore, the waste gas inlet and the waste gas outlet of the waste gas chamber I of the supercharging device I and the supercharging device II are both arranged on the end face, deviating from one end of the cylinder body II, of the cylinder body I.
Furthermore, a waste gas inlet and a waste gas outlet of a waste gas chamber II of the supercharging device I and the supercharging device II are both arranged on the end face, deviating from one end of the cylinder body I, of the cylinder body II.
Furthermore, air inlet and air outlet of air chamber I of supercharging device I and supercharging device II all set up on the terminal surface that is close to II one ends of cylinder body on cylinder body I.
Furthermore, an air inlet and an air outlet of an air chamber II of the supercharging device I and the supercharging device II are both arranged on the end face, close to one end of the cylinder body I, of the cylinder body II.
In a second aspect the present invention provides a method of pneumatically supercharging for a multi-cylinder engine, the method comprising the steps of:
when the inline four-cylinder engine runs, when the crank angle of the engine is 0-180 CA, the engine cylinder I exhausts air, and the engine cylinder II admits air; waste gas of an engine cylinder I enters a waste gas chamber I of a supercharging device I through an exhaust pipe; the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber I to an exhaust manifold to be closed, the pressure in the exhaust gas chamber I is increased, and the exhaust gas entering the exhaust gas chamber I pushes a piston I of the supercharging device I to move towards an air chamber I and compresses fresh air entering the air chamber I before; when the supercharging pressure of the air chamber I reaches the maximum, the piston I stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber I of the supercharging device I and an air inlet of an engine cylinder II to be opened, and supercharged air enters the engine cylinder II through an air inlet pipe to supercharge the engine cylinder II;
when the crankshaft angle of the engine runs to 180-360 CA degrees, the engine cylinder III exhausts gas, and the engine cylinder I admits gas; waste gas of an engine cylinder III enters a waste gas chamber I of a supercharging device II through an exhaust pipe, a vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from a waste gas outlet of the waste gas chamber I to an exhaust manifold to be closed, the pressure in the waste gas chamber I is increased, the waste gas entering the waste gas chamber I pushes a piston I of the supercharging device II to move towards an air chamber I of the supercharging device II, and fresh air entering the air chamber I before compression is compressed; when the supercharging pressure of the air chamber I reaches the maximum, the piston I stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber I of the supercharging device II and an air inlet of an engine cylinder I to be opened, and supercharged air enters the engine cylinder I through an air inlet pipe to supercharge the engine cylinder I;
when the crankshaft angle of the engine runs to 360-540 CA degrees, the engine cylinder IV exhausts gas and the engine cylinder III admits gas; the waste gas of the engine cylinder IV enters a waste gas chamber II of the supercharging device II through an exhaust pipe, the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from a waste gas outlet of the waste gas chamber II to an exhaust main pipe to be closed, and simultaneously controls an exhaust electromagnetic valve on a passage from a waste gas outlet of the waste gas chamber I of the supercharging device II to the exhaust main pipe to be opened; the waste gas entering the waste gas chamber II of the supercharging device II pushes a piston II of the supercharging device II to move towards the air chamber II and compresses the fresh air entering the air chamber II before; in the process, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber I of the supercharging device II and an air inlet of an engine cylinder I to be closed; an air inlet one-way valve between the air chamber I and an air inlet manifold is opened, and fresh air enters the air chamber I; when the supercharging pressure of the air chamber II reaches the maximum, the piston II stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on a passage between the air chamber II and an air inlet of an engine cylinder III to be opened, and supercharged air enters the engine cylinder III through an air inlet pipe to supercharge the engine cylinder III;
when the crankshaft angle of the engine runs to 540-720 CA degrees, the engine cylinder II exhausts gas and the engine cylinder IV admits gas; waste gas of an engine cylinder II enters a waste gas chamber II of the supercharging device I through an exhaust pipe, the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from a waste gas outlet of the waste gas chamber II to an exhaust main pipe to be closed, and simultaneously controls an exhaust electromagnetic valve on a passage from the waste gas outlet of the waste gas chamber I of the supercharging device I to the exhaust main pipe to be opened; the waste gas entering the waste gas chamber II of the supercharging device I pushes the piston II to move towards the air chamber II and compresses the fresh air entering the air chamber II before; in the process, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber I of the supercharging device I and an air inlet of an engine cylinder II to be closed; an air inlet one-way valve between the air chamber I and an air inlet main pipe is opened, and fresh air enters the air chamber I; when the supercharging pressure of the air chamber II reaches the maximum, the piston II stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on a passage between the air chamber II and an air inlet of an engine cylinder IV to be opened, and supercharged air enters the engine cylinder IV through an air inlet pipe to supercharge the engine cylinder IV;
the process means that the engine completes one working cycle and completes the pressurization of four cylinders, and the process is repeated during the operation of the engine.
Compared with the prior art, the beneficial technical effects brought by the invention are as follows:
1. the pneumatic supercharging system and the method adopt the scheme of directly compressing air by waste gas, reduce the link of waste gas energy conversion, are superior to the link of energy conversion of turbocharging or mechanical supercharging, and are also superior to the efficiency of turbocharging and mechanical supercharging.
2. The supercharging device realizes alternate supercharging between air cylinders with opposite air intake and exhaust in the engine through the symmetrically arranged double cylinder bodies and the double-head supercharging piston assembly, and effectively utilizes the pressure of exhaust gas exhausted from the air cylinders. The supercharging device has simple structure and lower cost.
3. The invention adopts an air intake and exhaust organization mode, namely a connection mode of the engine cylinder and the supercharging device, which can prevent the waste gas of one cylinder from flowing to another cylinder, thereby avoiding the adverse effect on combustion caused by excessive residual waste gas.
4. In the invention, when the air inlet and the air outlet of the air chamber I and the exhaust gas chamber I are arranged on the circumferential side of the cylinder body I, the displacement range of the piston is the distance between the air inlet and the air outlet on the circumferential wall of the cylinder body, and the movement range of the piston cannot exceed the positions of the air inlet and the air outlet, otherwise, air blowby can be caused.
5. According to the invention, the air inlet and the air outlet of the waste gas chamber are both arranged on the end surface of the cylinder body, so that the moving range of the piston is expanded to the greatest extent, and the supercharging effect can be improved to the greatest extent.
Drawings
Fig. 1 is a schematic view of the assembly structure of the pneumatic booster system of the present invention.
Fig. 2 is a schematic sectional view of the supercharging apparatus according to the present invention.
Fig. 3 is a schematic sectional view of a supercharging apparatus according to the present invention.
Reference numerals: 100. the device comprises an in-line four-cylinder engine, 200 parts of a supercharging device I, 300 parts of a supercharging device II, 400 parts of a supercharging device I, 500 parts of an air inlet pipe, 500 parts of an exhaust pipe, 600 parts of an air inlet manifold, 700 parts of an exhaust manifold, 800 parts of a throttle valve;
101. engine cylinders I and 102, engine cylinders II and 103, engine cylinders III and 104 and engine cylinder IV;
201. cylinder I, 202, cylinder II, 203, piston I, 204, piston II, 205, exhaust chamber I, 206, air chamber I, 207, exhaust chamber II, 208, air chamber II, 209, transfer line, 210, air inlet I, 211, air inlet II, 212, exhaust inlet I, 213, exhaust inlet II, 214, air outlet I, 215, air outlet II, 216, exhaust outlet I, 217, exhaust outlet II.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to the accompanying drawings 1, which is a preferred embodiment of the present invention, the present embodiment discloses a pneumatic supercharging system for a multi-cylinder engine, comprising an in-line four-cylinder engine 100, a supercharging device i 200, a supercharging device ii 300, a plurality of intake pipes 400, a plurality of exhaust pipes 500, an intake manifold 600 and an exhaust manifold 700.
The first supercharging device 200 and the second supercharging device 300 are identical in structure, and as shown in the attached drawings 2 and 3 in the specification, the first supercharging device 200 and the second supercharging device 300 both comprise a cylinder body I201 and a cylinder body II 202 which are symmetrically arranged and connected together, a piston I203 is arranged in the cylinder body I201, and a piston II 204 is arranged in the cylinder body II 202; the piston I203 divides the inner cavity of the cylinder I201 into an exhaust gas chamber I205 and an air chamber I206, and the piston II 204 divides the inner cavity of the cylinder II 202 into an exhaust gas chamber II 207 and an air chamber II 208; the piston I203 and the piston II 204 are connected together through a transmission rod 209 to form a double-head booster piston assembly; the transmission rod 209 penetrates through the joint of the cylinder I201 and the cylinder II 202, and two ends of the transmission rod 209 are fixedly connected to the piston I203 and the piston II 204 respectively; the transmission rod 209 penetrates through two ends of the joint of the cylinder body I201 and the cylinder body II 202 and is respectively positioned in the air chamber I206 and the air chamber II 208; the transmission rod 209 is connected with the connecting part of the cylinder body I201 and the cylinder body II 202 in a sliding and sealing mode, and the air chamber I206, the air chamber II 208, the waste gas chamber I205 and the waste gas chamber II 207 are provided with an air inlet and an air outlet; specifically, as shown in fig. 2 and 3, the air chamber i 206 is connected to an air inlet i 210 and an air outlet i 214, the air chamber ii 208 is connected to an air inlet ii 211 and an air outlet ii 215, the exhaust gas chamber i 205 is connected to an exhaust gas inlet i 212 and an exhaust gas outlet i 216, and the exhaust gas chamber ii 207 is connected to an exhaust gas inlet ii 213 and an exhaust gas outlet ii 217.
The in-line four-cylinder engine 100 comprises an engine cylinder I101, an engine cylinder II 102, an engine cylinder III 103 and an engine cylinder IV 104, wherein an exhaust port of the engine cylinder I101 is communicated with an exhaust gas inlet I212 of an exhaust gas chamber I205 of a supercharging device I200 through an exhaust pipe 500; an air inlet of an engine cylinder I101 is communicated with an air outlet I214 of an air chamber I206 of a supercharging device II 300 through an air inlet pipe 400;
the exhaust port of the engine cylinder II 102 is communicated with an exhaust gas inlet II 213 of an exhaust gas chamber II 207 of the supercharging device I200 through an exhaust pipe 500, and the air inlet of the engine cylinder II 102 is communicated with an air outlet I214 of an air chamber I206 of the supercharging device I200 through an air inlet pipe 400;
the exhaust port of the engine cylinder III 103 is communicated with an exhaust gas inlet I212 of an exhaust gas chamber I205 of a supercharging device II 300 through an exhaust pipe 500, and the air inlet of the engine cylinder III 103 is communicated with an air outlet II 215 of an air chamber II 208 of the supercharging device II 300 through an air inlet pipe 400;
the exhaust port of the engine cylinder IV 104 is communicated with an exhaust gas inlet II 213 of an exhaust gas chamber II 207 of the supercharging device II 300 through an exhaust pipe 500, and the inlet port of the engine cylinder IV 104 is communicated with an air outlet II 215 of an air chamber II 208 of the supercharging device I200 through an air inlet pipe 400.
Air inlet one-way electromagnetic valves are arranged on air inlet passages of an air chamber I206 and an air chamber II 208 of the supercharging device I200 and the supercharging device II 300 and air inlet passages of an engine cylinder I101, an engine cylinder II 102, an engine cylinder III 103 and an engine cylinder IV 104; as an embodiment of the present embodiment, the air inlet one-way solenoid valves may be disposed on the air outlets i 214 and ii 215 of the pressure boosting devices i 200 and ii 300.
Exhaust check valves are arranged on exhaust passages between the engine cylinder I101, the engine cylinder II 102, the engine cylinder III 103 and the engine cylinder IV 104 and between the supercharging device I200 and the supercharging device II 300 and between the exhaust gas chamber I205 and the exhaust gas chamber II 207; as an embodiment of the present embodiment, the exhaust check valves may be provided on the exhaust gas inlets i 212 and ii 213 of the pressure boosting devices i 200 and ii 300.
Air inlets are formed in an air chamber I206 and an air chamber II 208 of the supercharging device I200 and the supercharging device II 300 respectively, all the air inlets are collected to an air inlet manifold after being connected through an air inlet manifold 600, the air inlet manifold is matched with a throttle valve 800 in a rotating mode, and an air inlet check valve is arranged on an air inlet passage between the air inlets and the air inlet manifold; as an implementation mode of the embodiment, the air inlet one-way valves are arranged on the air inlets I210 and II 211 of the supercharging devices I200 and II 300.
Waste gas outlets are formed in the waste gas chambers I205 and II 207 of the supercharging devices I200 and II 300, and all the waste gas outlets are connected through an exhaust manifold 700 and then collected to an exhaust manifold; an exhaust electromagnetic valve is arranged on a passage from the waste gas outlet to the exhaust main pipe; as an embodiment of the present embodiment, the exhaust solenoid valves may be disposed on the exhaust gas outlet i 216 and the exhaust gas outlet ii 217 of the pressure boosting devices i 200 and ii 300.
The air inlet one-way electromagnetic valve, the air exhaust electromagnetic valve and the throttle valve 800 are all connected with and controlled by a vehicle-mounted computer.
As an embodiment of the present embodiment, as shown in fig. 2, the air inlets and the air outlets of the exhaust chamber i 205 and the air chamber i 206 of the supercharging devices i 200 and ii 300 are provided on the circumferential side of the cylinder block i 201. The exhaust gas inlet and exhaust gas outlet of the air chamber II 208 and the exhaust gas chamber II 207 of the supercharging devices I200 and II 300 are arranged on the circumferential side of the cylinder body II 202. The displacement range of the piston is the distance between the air inlets or the air outlets on the circumferential wall of the cylinder body, and the movement range of the piston cannot exceed the positions of the air inlets or the air outlets, otherwise, air blowby can be caused.
As still another embodiment of the present embodiment, as shown in fig. 3, the exhaust gas inlet and the exhaust gas outlet of the exhaust gas chamber i 205 of the supercharging device i 200 and the supercharging device ii 300 are both arranged on the end surface of the cylinder block i 201 away from the end of the cylinder block ii 202; the waste gas inlet and the waste gas outlet of the waste gas chamber II 207 of the supercharging device I200 and the supercharging device II 300 are both arranged on the end face of one end, deviating from the cylinder body I201, of the cylinder body II 202; an air inlet and an air outlet of an air chamber I206 of the supercharging device I200 and the supercharging device II 300 are both arranged on the end face, close to one end of the cylinder body II 202, of the cylinder body I201; air inlets and air outlets of air chambers II 208 of the supercharging devices I200 and II 300 are arranged on the end face, close to one end of the cylinder body I201, of the cylinder body II 202.
The embodiment also discloses a pneumatic supercharging method for the multi-cylinder engine, which comprises the following steps:
when the in-line four-cylinder engine 100 runs, when the crank angle of the engine is 0-180 CA, the engine cylinder I101 exhausts air, and the engine cylinder II 102 admits air; exhaust gas of an engine cylinder I101 enters an exhaust gas chamber I205 of a supercharging device I200 through an exhaust pipe 500; the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber I205 to an exhaust manifold to be closed, the pressure in the exhaust gas chamber I205 is increased, and the exhaust gas entering the exhaust gas chamber I205 pushes a piston I203 of the supercharging device I200 to move towards an air chamber I206 and compresses fresh air entering the air chamber I206 before; when the supercharging pressure of the air chamber I206 reaches the maximum, the piston I203 stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber I206 of the supercharging device I200 and an air inlet of the engine cylinder II 102 to be opened, and supercharged air enters the engine cylinder II 102 through the air inlet pipe 400 to supercharge the engine cylinder II 102;
when the crank angle of the engine runs to 180-360 CA degrees, the engine cylinder III 103 exhausts gas and the engine cylinder I101 admits gas; the exhaust gas of an engine cylinder III 103 enters an exhaust gas chamber I205 of a supercharging device II 300 through an exhaust pipe 500, an on-board computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber I205 to an exhaust manifold to be closed, the pressure in the exhaust gas chamber I205 is increased, the exhaust gas entering the exhaust gas chamber I205 pushes a piston I203 of the supercharging device II 300 to move towards an air chamber I206 of the supercharging device II 300, and the fresh air entering the air chamber I206 before is compressed; when the supercharging pressure of the air chamber I206 reaches the maximum, the piston I203 stops moving, an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber I206 of the vehicle-mounted computer control supercharging device II 300 and an air inlet of an engine cylinder I101 is opened, and supercharged air enters the engine cylinder I101 through an air inlet pipe 400 to supercharge the engine cylinder I101;
when the crank angle of the engine runs to 360-540 CA degrees, the engine cylinder IV 104 exhausts gas and the engine cylinder III 103 admits gas; the exhaust gas of the engine cylinder IV 104 enters an exhaust gas chamber II 207 of the supercharging device II 300 through an exhaust pipe 500, the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber II 207 to an exhaust manifold to be closed, and simultaneously controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of an exhaust gas chamber I205 of the supercharging device II 300 to the exhaust manifold to be opened; the exhaust gas entering the waste gas chamber II 207 of the supercharging device II 300 pushes the piston II 204 of the supercharging device II 300 to move towards the air chamber II 208, and compresses the fresh air which enters the air chamber II 208 before; in the process, an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber I206 of the vehicle-mounted computer control supercharging device II 300 and an air inlet of an engine cylinder I101 is closed; an air inlet one-way valve between the air chamber I206 and an air inlet manifold is opened, and fresh air enters the air chamber I206; when the supercharging pressure of the air chamber II 208 reaches the maximum, the piston II 204 stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on a passage between the air chamber II 208 and an air inlet of the engine cylinder III 103 to be opened, and supercharged air enters the engine cylinder III 103 through the air inlet pipe 400 to supercharge the engine cylinder III 103;
when the crank angle of the engine is between 540 and 720 CA degrees, exhausting air in an engine cylinder II 102 and introducing air in an engine cylinder IV 104; the exhaust gas of the engine cylinder II 102 enters an exhaust gas chamber II 207 of the supercharging device I200 through an exhaust pipe 500, the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber II 207 to an exhaust manifold to be closed, and simultaneously controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of an exhaust gas chamber I205 of the supercharging device I200 to the exhaust manifold to be opened; the exhaust gas entering the exhaust chamber II 207 of the supercharging device I200 pushes the piston II 204 to move towards the air chamber II 208, and compresses the fresh air entering the chamber II before; in the process, the vehicle-mounted computer controls the closing of an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber I206 of the supercharging device I200 and an air inlet of an engine cylinder II 102; an air inlet one-way valve between the air chamber I206 and an air inlet manifold is opened, and fresh air enters the air chamber I206; when the supercharging pressure of the air chamber II 208 reaches the maximum, the piston II 204 stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on a passage between the air chamber II 208 and an air inlet of the engine cylinder IV 104 to be opened, and supercharged air enters the engine cylinder IV 104 through the air inlet pipe 400 to supercharge the engine cylinder IV 104;
the process means that the engine completes one working cycle and completes the pressurization of four cylinders, and the process is repeated during the operation of the engine.
In the next working cycle, when the crank angle of the engine is 0-180 CA, the engine cylinder I101 exhausts air, and the engine cylinder II 102 admits air; exhaust gas of an engine cylinder I101 enters an exhaust gas chamber I205 of a supercharging device I200 through an exhaust pipe 500; the vehicle-mounted computer controls the exhaust electromagnetic valve on the passage from the exhaust gas outlet of the exhaust gas chamber II 207 of the supercharging device I200 to the exhaust manifold to be opened, and controls the exhaust electromagnetic valve on the passage from the exhaust gas outlet of the exhaust gas chamber I205 to the exhaust manifold to be closed; when air in an air chamber I206 of the supercharging device I200 is compressed, an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber II 208 and an engine cylinder IV 104 is closed under the control of an on-board computer, an air inlet one-way valve on a passage between an air inlet of the air chamber II 208 and an air inlet manifold is opened, and fresh air enters the air chamber II 208.
Similarly, when the crank angle of the engine is 180-360 CA degrees, the engine cylinder III 103 exhausts gas and the engine cylinder I101 admits gas; the exhaust gas of an engine cylinder III 103 enters an exhaust gas chamber I205 of a supercharging device II 300 through an exhaust pipe 500, an on-board computer controls an exhaust one-way electromagnetic valve of a passage between an exhaust gas chamber II 207 of the supercharging device II 300 and an exhaust manifold to be opened, and simultaneously controls an exhaust electromagnetic valve of a passage from an exhaust gas outlet of the exhaust gas chamber I205 to the exhaust manifold to be closed; when air in an air chamber I206 of the supercharging device II 300 is compressed, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber II 208 of the supercharging device II 300 and an engine cylinder III 103 to be closed, an air inlet one-way valve on a passage between an air inlet of the air chamber II 208 and an air inlet manifold to be opened, and fresh air enters the air chamber II 208.
The engine cylinder i 101, the engine cylinder ii 102, the engine cylinder iii 103, and the engine cylinder iv are not specifically referred to as a specific cylinder, but are described in terms of an ignition sequence of a four-cylinder in-line engine, as shown in fig. 1, the ignition sequence of the engine cylinder is that a first-order cylinder is ignited first, the engine cylinder i 101 is referred to as the first-order cylinder, and if a second-order cylinder of the engine is ignited first, the engine cylinder i 101 is referred to as the second-order cylinder.

Claims (7)

1. A pneumatic supercharging system for a multi-cylinder engine is characterized in that: the system comprises an in-line four-cylinder engine (100), a supercharging device I (200), a supercharging device II (300), a plurality of air inlet pipes (400), a plurality of exhaust pipes (500), an air inlet manifold (600) and an exhaust manifold (700);
the supercharging device I (200) and the supercharging device II (300) respectively comprise a cylinder body I (201) and a cylinder body II (202) which are symmetrically arranged and connected together, a piston I (203) is arranged in the cylinder body I (201), and a piston II (204) is arranged in the cylinder body II (202); the piston I (203) divides the inner cavity of the cylinder I (201) into an exhaust gas chamber I (205) and an air chamber I (206), and the piston II (204) divides the inner cavity of the cylinder II (202) into an exhaust gas chamber II (207) and an air chamber II (208); the piston I (203) and the piston II (204) are connected together through a transmission rod (209) to form a double-head supercharging piston assembly; the transmission rod (209) penetrates through the joint of the cylinder body I (201) and the cylinder body II (202), and two ends of the transmission rod (209) are fixedly connected to the piston I (203) and the piston II (204) respectively; the transmission rod (209) penetrates through two ends of the joint of the cylinder body I (201) and the cylinder body II (202) and is respectively positioned in the air chamber I (206) and the air chamber II (208); the transmission rod (209) is connected with the connection part of the cylinder body I (201) and the cylinder body II (202) in a sliding and sealing manner;
the in-line four-cylinder engine (100) comprises an engine cylinder I (101), an engine cylinder II (102), an engine cylinder III (103) and an engine cylinder IV (104), wherein an exhaust port of the engine cylinder I (101) is communicated with an exhaust gas chamber I (205) of a supercharging device I (200) through an exhaust pipe (500); an air inlet of an engine cylinder I (101) is communicated with an air chamber I (206) of a supercharging device II (300) through an air inlet pipe (400);
an exhaust port of the engine cylinder II (102) is communicated with a waste gas chamber II (207) of the supercharging device I (200) through an exhaust pipe (500), and an air inlet of the engine cylinder II (102) is communicated with an air chamber I (206) of the supercharging device I (200) through an air inlet pipe (400);
an exhaust port of the engine cylinder III (103) is communicated with an exhaust gas chamber I (205) of the supercharging device II (300) through an exhaust pipe (500), and an air inlet of the engine cylinder III (103) is communicated with an air chamber II (208) of the supercharging device II (300) through an air inlet pipe (400);
an exhaust port of the engine cylinder IV (104) is communicated with a waste gas chamber II (207) of the supercharging device II (300) through an exhaust pipe (500), and an air inlet of the engine cylinder IV (104) is communicated with an air chamber II (208) of the supercharging device I (200) through an air inlet pipe (400);
air inlet one-way solenoid valves are arranged on air inlet passages of an air chamber I (206) and an air chamber II (208) of the supercharging device I (200) and the supercharging device II (300) and air inlet passages of an engine cylinder I (101), an engine cylinder II (102), an engine cylinder III (103) and an engine cylinder IV (104); exhaust check valves are arranged on exhaust passages between the engine cylinder I (101), the engine cylinder II (102), the engine cylinder III (103) and the engine cylinder IV (104) and between the supercharging device I (200) and the waste gas chamber I (205) and the waste gas chamber II (207) of the supercharging device II (300);
air inlets are formed in an air chamber I (206) and an air chamber II (208) of the supercharging device I (200) and the supercharging device II (300), all the air inlets are collected to an air inlet manifold after being connected through an air inlet manifold (600), the air inlet manifold is rotatably provided with a throttle valve (800), and an air inlet check valve is arranged on an air inlet passage between the air inlets and the air inlet manifold;
waste gas outlets are formed in a waste gas chamber I (205) and a waste gas chamber II (207) of the supercharging device I (200) and the supercharging device II (300), and all the waste gas outlets are connected through an exhaust manifold (700) and then collected to an exhaust manifold; an exhaust electromagnetic valve is arranged on a passage from the waste gas outlet to the exhaust main pipe;
the air inlet one-way electromagnetic valve, the air outlet electromagnetic valve and the throttle valve (800) are all connected with a vehicle-mounted computer and are controlled by the vehicle-mounted computer.
2. A pneumatic supercharging system for a multi-cylinder engine according to claim 1, wherein: an exhaust gas inlet and an exhaust gas outlet of the exhaust gas chamber I (205) are both provided on the circumferential side of the exhaust gas chamber I (205), an exhaust gas inlet and an exhaust gas outlet of the exhaust gas chamber II (207) are both provided on the circumferential side of the exhaust gas chamber II (207), an air inlet and an air outlet of the air chamber I (206) are both provided on the circumferential side of the air chamber I (206), and an air inlet and an air outlet of the air chamber II (208) are both provided on the circumferential side of the air chamber II (208).
3. A pneumatic supercharging system for a multi-cylinder engine according to claim 1, wherein: and the waste gas inlet and the waste gas outlet of the waste gas chamber I (205) of the supercharging device I (200) and the supercharging device II (300) are both arranged on the end surface of one end of the cylinder body I (201) deviating from the cylinder body II (202).
4. A pneumatic supercharging system for a multi-cylinder engine according to claim 1, wherein: and the waste gas inlet and the waste gas outlet of the waste gas chamber II (207) of the supercharging device I (200) and the supercharging device II (300) are both arranged on the end surface of one end of the cylinder body II (202) departing from the cylinder body I (201).
5. A pneumatic supercharging system for a multi-cylinder engine according to claim 1, 3 or 4, wherein: air inlets and air outlets of air chambers I (206) of the supercharging devices I (200) and II (300) are arranged on the end face, close to one end of the cylinder body II (202), of the cylinder body I (201).
6. A pneumatic supercharging system for a multi-cylinder engine according to claim 1, 3 or 4, wherein: and air inlets and air outlets of air chambers II (208) of the supercharging devices I (200) and II (300) are arranged on the end surface of one end, close to the cylinder body I (201), of the cylinder body II (202).
7. A method of pneumatically supercharging for a multi-cylinder engine, the method comprising the steps of:
when the inline four-cylinder engine (100) runs, when the crank angle of the engine is 0-180 CA degrees, the engine cylinder I (101) exhausts air, and the engine cylinder II (102) admits air; exhaust gas of an engine cylinder I (101) enters an exhaust gas chamber I (205) of a supercharging device I (200) through an exhaust pipe (500); the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber I (205) to an exhaust manifold to be closed, the pressure in the exhaust gas chamber I (205) is increased, and the exhaust gas entering the exhaust gas chamber I (205) pushes a piston I (203) of the supercharging device I (200) to move towards an air chamber I (206) and compresses fresh air which enters the air chamber I (206) before; when the supercharging pressure of the air chamber I (206) reaches the maximum, the piston I (203) stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber I (206) of the supercharging device I (200) and an air inlet of the engine cylinder II (102) to be opened, and supercharged air enters the engine cylinder II (102) through an air inlet pipe (400) to supercharge the engine cylinder II (102);
when the crank angle of the engine runs to 180-360 CA degrees, the engine cylinder III (103) exhausts gas and the engine cylinder I (101) admits gas; the exhaust gas of an engine cylinder III (103) enters a waste gas chamber I (205) of a supercharging device II (300) through an exhaust pipe (500), an on-board computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the waste gas chamber I (205) to an exhaust manifold to be closed, the pressure in the waste gas chamber I (205) is increased, and the exhaust gas entering the waste gas chamber I (205) pushes a piston I (203) of the supercharging device II (300) to move towards an air chamber I (206) of the supercharging device II (300) and compresses fresh air entering the air chamber I (206) before; when the supercharging pressure of the air chamber I (206) reaches the maximum, the piston I (203) stops moving, an air inlet one-way electromagnetic valve on an air inlet passage between the air chamber I (206) of the vehicle-mounted computer control supercharging device II (300) and an air inlet of an engine cylinder I (101) is opened, and supercharged air enters the engine cylinder I (101) through an air inlet pipe (400) to supercharge the engine cylinder I (101);
when the crank angle of the engine runs to 360-540 CA degrees, the engine cylinder IV (104) exhausts air, and the engine cylinder III (103) admits air; the exhaust gas of an engine cylinder IV (104) enters an exhaust gas chamber II (207) of a supercharging device II (300) through an exhaust pipe (500), a vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber II (207) to an exhaust main pipe to be closed, and simultaneously controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber I (205) of the supercharging device II (300) to the exhaust main pipe to be opened; the exhaust gas entering the exhaust chamber II (207) of the supercharging device II (300) pushes the piston II (204) of the supercharging device II (300) to move towards the air chamber II (208), and compresses the fresh air which enters the air chamber II (208) before; in the process, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber I (206) of the supercharging device II (300) and an air inlet of an engine cylinder I (101) to be closed; an air inlet one-way valve between the air chamber I (206) and an air inlet manifold is opened, and fresh air enters the air chamber I (206); when the supercharging pressure of the air chamber II (208) reaches the maximum, the piston II (204) stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on a passage between the air chamber II (208) and an air inlet of an engine cylinder III (103) to be opened, and supercharged air enters the engine cylinder III (103) through an air inlet pipe (400) to supercharge the engine cylinder III (103);
when the crank angle of the engine is between 540 and 720 CA degrees, the engine cylinder II (102) exhausts air, and the engine cylinder IV (104) admits air; the exhaust gas of the engine cylinder II (102) enters an exhaust gas chamber II (207) of the supercharging device I (200) through an exhaust pipe (500), the vehicle-mounted computer controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber II (207) to an exhaust main pipe to be closed, and simultaneously controls an exhaust electromagnetic valve on a passage from an exhaust gas outlet of the exhaust gas chamber I (205) of the supercharging device I (200) to the exhaust main pipe to be opened; the exhaust gas entering an exhaust chamber II (207) of the supercharging device I (200) pushes a piston II (204) to move towards an air chamber II (208), and compresses fresh air entering the air chamber II before; in the process, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on an air inlet passage between an air chamber I (206) of the supercharging device I (200) and an air inlet of an engine cylinder II (102) to be closed; an air inlet one-way valve between the air chamber I (206) and an air inlet manifold is opened, and fresh air enters the air chamber I (206); when the supercharging pressure of the air chamber II (208) reaches the maximum, the piston II (204) stops moving, the vehicle-mounted computer controls an air inlet one-way electromagnetic valve on a passage between the air chamber II (208) and an air inlet of an engine cylinder IV (104) to be opened, and supercharged air enters the engine cylinder IV (104) through an air inlet pipe (400) to supercharge the engine cylinder IV (104);
the process means that the engine completes one working cycle and completes the pressurization of the four cylinders, and the process is repeated in the running process of the engine.
CN202210388796.7A 2022-04-13 2022-04-13 Pneumatic supercharging system and method for multi-cylinder engine Active CN114738107B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210388796.7A CN114738107B (en) 2022-04-13 2022-04-13 Pneumatic supercharging system and method for multi-cylinder engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210388796.7A CN114738107B (en) 2022-04-13 2022-04-13 Pneumatic supercharging system and method for multi-cylinder engine

Publications (2)

Publication Number Publication Date
CN114738107A CN114738107A (en) 2022-07-12
CN114738107B true CN114738107B (en) 2023-03-31

Family

ID=82281685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210388796.7A Active CN114738107B (en) 2022-04-13 2022-04-13 Pneumatic supercharging system and method for multi-cylinder engine

Country Status (1)

Country Link
CN (1) CN114738107B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552049Y2 (en) * 1976-01-31 1980-12-03
GB2023721B (en) * 1978-06-26 1982-11-10 Autoipari Kutato Intezet Turbo-charged diesel engine with throttled regulation
EP0204011B1 (en) * 1985-05-29 1990-10-24 Karl Eickmann Aggregate with through flow by a fluid
DE19856960A1 (en) * 1998-12-10 2000-06-21 Udo Mailaender Gmbh Device for charging an internal combustion engine
CN102678272A (en) * 2012-05-03 2012-09-19 上海交通大学 Regulating device for air intake and discharge flow of supercharger
CN104061062B (en) * 2014-06-06 2016-09-07 上海交通大学 Intake and exhaust with double venturi regulate system
CN104595151A (en) * 2014-12-09 2015-05-06 天津市海雅实业有限公司 Hydraulic reciprocating compression air pump with quantified and variable pressurization functions

Also Published As

Publication number Publication date
CN114738107A (en) 2022-07-12

Similar Documents

Publication Publication Date Title
CN100535407C (en) Adjustable high boost system with structure of series-parallel connection of turbochargers in different size
CN101182803B (en) Adjustable consecutive composite turbocharging system
CN102278193B (en) Auxiliary pressurization system of internal combustion engine
US4671226A (en) Supercharged multi-cylinder four-cycle diesel engine
WO2003040530A3 (en) Split four stroke engine
SE9803368L (en) Internal combustion engine
CN103032152A (en) Diesel engine sequential supercharging structure with air supplementing function
US6662775B2 (en) Integral air compressor for boost air in barrel engine
ES463510A1 (en) Multi-cylinder internal combustion engine
CN103615309A (en) All-work-condition adjustable two-stage pressurizing system of internal combustion engine
CN102434268A (en) Double-turbine double-air-compressor turbocharging system
JPS639616A (en) Turbo-compound engine
CN114738107B (en) Pneumatic supercharging system and method for multi-cylinder engine
CN101215989A (en) Internal combustion engine exhaust turbine pressurization system possessing natural air inlet device
WO2023165337A1 (en) Combined exhaust pipe structure and engine exhaust system
US7318314B2 (en) Method of controlling a supercharged internal-combustion engine with at least two cylinders and engine using such a method
JP2820793B2 (en) Reciprocating engine with pump cylinder and power cylinder
CN202100325U (en) Auxiliary supercharging system of internal combustion engine
RU2299999C2 (en) Internal combustion engine with auxiliary cylinder (versions)
CN203035338U (en) Diesel engine successiveness pressurizing structure with air supply function
CN102400778A (en) Serial-parallel adjustable single-vortex double-pressure turbocharging system
CN2312331Y (en) Mixing type pulsation converter exhaust system
CN213270064U (en) Double-cylinder supercharging device of engine
JPS5537550A (en) Supercharged internal combustion engine
CN106285924B (en) Device for improving energy utilization rate in tail gas of internal combustion engine

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
GR01 Patent grant
GR01 Patent grant