WO2022236479A1 - 一种分层扫气二冲程发动机的进气管 - Google Patents

一种分层扫气二冲程发动机的进气管 Download PDF

Info

Publication number
WO2022236479A1
WO2022236479A1 PCT/CN2021/092405 CN2021092405W WO2022236479A1 WO 2022236479 A1 WO2022236479 A1 WO 2022236479A1 CN 2021092405 W CN2021092405 W CN 2021092405W WO 2022236479 A1 WO2022236479 A1 WO 2022236479A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
mixed gas
intake pipe
stroke engine
channel
Prior art date
Application number
PCT/CN2021/092405
Other languages
English (en)
French (fr)
Inventor
胡全宇
Original Assignee
永康市茂金园林机械有限公司
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 永康市茂金园林机械有限公司 filed Critical 永康市茂金园林机械有限公司
Priority to PCT/CN2021/092405 priority Critical patent/WO2022236479A1/zh
Publication of WO2022236479A1 publication Critical patent/WO2022236479A1/zh

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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • 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

Definitions

  • the invention relates to the field of engines, in particular to an intake pipe of a stratified scavenging two-stroke engine.
  • Two-stroke gasoline engines have been widely used because of their simple structure, high power per liter, low cost, and convenient maintenance. In the future, small two-stroke gasoline engines will be widely used in hand-operated power machinery such as lawn mowers and chain saws. However, the fuel consumption rate of the two-stroke gasoline engine is high and the emission pollution is serious. In today's increasingly stringent requirements for energy saving and environmental protection, effective measures must be taken to overcome its weaknesses in order to better develop strengths and avoid weaknesses.
  • the existing intake pipe usually divides the intake pipe into two parts, one half is used as an air channel, and the other half is used as a mixed gas channel.
  • This structure has the following problems:
  • the intake pipe of the existing stratified scavenging engine only has the common air communication function.
  • the technical problem to be solved by the present invention is that the existing air intake pipe only has the common function of air communication, and does not have the functions of air storage and air volume increase.
  • the invention provides an intake pipe of a layered scavenging two-stroke engine, which is provided with air passages and mixed gas passages which are independent of each other and do not interfere with each other, so as to increase the volume of air, improve the air supply ratio of the layered scavenging engine, and improve Combustion state, and produce different fluidity in the intake pipe, so that more two-stroke engine oil adheres to the cylinder wall.
  • the invention provides an intake pipe of a stratified scavenging two-stroke engine, an air passage, a mixed gas passage and an intake pipe negative pressure hole; the air passage, the mixed gas passage and the intake pipe negative pressure hole are independent of each other; The negative pressure hole of the intake pipe is set to run through the intake pipe.
  • the air channel includes an air channel splitter plate; the air channel splitter plate is fixedly connected to the air channel and divides the air channel into multiple channels.
  • the air channel splitter plate is set in an irregular shape.
  • the cross section of the air channel splitter plate is a combination of a rectangle and a trapezoid, wherein one of the short sides of the rectangle is connected to the upper bottom of the trapezoid.
  • the mixed gas channel includes a mixed gas channel straightening plate, the mixed gas channel straightening plate is arranged in the middle of the mixed gas channel, and is fixedly connected with the mixed gas channel, and divides the mixed gas channel into a first mixed gas channel and a second mixed gas channel aisle.
  • the mixed gas channel straightening plate is provided with raised points.
  • hemispherical protruding points of different sizes are provided on the end of the mixed gas channel straightening plate near the carburetor.
  • the intake pipe partition is arranged between the air channel and the mixed gas channel.
  • volume of the gas mixture channel is larger than the volume of the air channel.
  • volume of the air channel is set at 2.98-4.12 cc; the volume of the mixed gas channel is set at 3.68-5.34 cc.
  • the air intake pipe of the present invention is provided with mutually independent, non-interfering air passages and mixed gas passages, and the air passages and mixed gas passages are divided into two by splitter plates and rectifying plates respectively to enhance gas fluidity; Adjusting the volume ratio of the mixed gas channel can increase the air supply ratio of the scavenging engine; the air channel splitter plate and the mixed gas channel rectifying plate are set to enhance fluidity and improve combustion efficiency.
  • the intake pipe of the present invention can increase the volume of the air passage of the intake pipe to store pure air for a stratified scavenging two-stroke engine.
  • the piston moves up to a position, more pure air is stored in the cylinder air storage chamber of the cylinder;
  • the scavenging two-stroke engine is scavenging, there is a large amount of pure air in the air storage chamber on both sides of the cylinder to clean the exhaust gas first, and then the mixed gas is cleaned, which minimizes the loss of the mixed gas into the exhaust system along with waste, and at the same time
  • the quality, efficiency and utilization of the scavenging gas are greatly improved, and the content of HC, CO and other compounds in the exhaust gas is greatly reduced.
  • Fig. 1 is the three-dimensional schematic view of the intake pipe of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 2 is the front view of the intake pipe of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 3 is the rear view of the intake pipe of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 4 is the sectional view of the intake pipe of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 5 is the sectional view of the intake duct of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 6 is a transverse sectional view of the gas mixture passage of the intake pipe of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 7 is the transverse sectional view of the air channel of the intake pipe of a kind of stratified scavenging two-stroke engine of a preferred embodiment of the present invention
  • Fig. 8 is a schematic diagram of the connection manner of the intake pipe of a stratified scavenging two-stroke engine according to a preferred embodiment of the present invention.
  • the embodiment of the present invention provides an intake pipe 1 of a stratified scavenging two-stroke engine, air passages 5, 6, mixed gas passages 2, 3 and intake pipe negative pressure holes 4;
  • the air passages 5, 6, the mixed gas passages 2, 3 and the negative pressure hole 4 of the intake pipe are independent of each other; the negative pressure hole 4 of the intake pipe is set to run through the intake pipe.
  • the air passages 5, 6, the air mixture passages 2, 3 and the negative pressure hole 4 of the intake pipe are arranged sequentially from top to bottom. The positions of the air channel and the mixed gas channel can be reset to correspond to the air intake channel and the mixed gas intake channel of the cylinder respectively.
  • the air channels 5, 6 include an air channel splitter plate 7; the air channel splitter plate is arranged in the middle of the air channel, and is fixedly connected with the air channel, and the air channel is divided into the first air channel 5 and the second air channel. Two air channels 6 .
  • the air channel splitter plate is set in an irregular shape.
  • the cross section of the air channel splitter plate 7 is a combination of a rectangle and a trapezoid, wherein one of the short sides of the rectangle is connected to the upper bottom of the trapezoid.
  • the air channel is a long channel concept, and the spoiler function of the splitter plate is set to increase the air flow rate.
  • the mixed gas channel includes a mixed gas channel straightening plate 8, the mixed gas channel rectifying plate is arranged in the middle of the mixed gas channel, and is fixedly connected with the mixed gas channel, and the mixed gas channel is divided into the first mixed gas channel.
  • the mixed gas channel straightening plate 8 is provided with bumps. There are hemispherical bumps of different sizes on the rectifying plate of the mixed gas channel near the carburetor. The setting of the bumps can effectively generate different fluidity of the two-stroke engine oil in the mixed gas, and squeeze the vortex into the crankcase.
  • two-stroke engines need two-stroke oil to lubricate the cylinder wall, reduce cylinder temperature, increase power, and avoid cylinder scuffing.
  • the intake pipe of a stratified scavenging two-stroke engine of the embodiment of the present invention also includes an intake pipe partition 9, and the intake pipe partition 9 is arranged between the air passage 5 and the mixed gas passage 2, and the The air passage 5 and the mixture passage 2 are separated.
  • the volume of the air mixture channel is larger than that of the air channel.
  • the air channel volume is set to 2.98-4.12cc, preferably 3.28cc, and the mixed gas channel volume is set to 3.68-5.34cc, preferably 4.99cc.
  • the two-stroke stratified scavenging engine with the intake pipe described in this embodiment includes an independent cylinder air storage chamber and an independent cylinder mixed gas storage chamber.
  • the piston moves up to a position, the piston opens the cylinder After the air intake port and the cylinder air intake channel, the pure air passes through the carburetor, the intake pipe air channel, the cylinder air intake port, and the piston air channel in sequence, and the pure air is stored in the cylinder air storage room; the cylinder air storage room
  • the total volume range is set to 0.8-3.5cc, while the optimal volume of the cylinder air storage chamber is set to 2.15cc.
  • the intake pipe of the embodiment of the present invention is not a simple air communication function, but to cooperate with the cylinder with independent air storage chamber and mixed gas storage chamber, after calculation, the intake pipe of this embodiment is set, thereby increasing the The amount of pure air stored in the cylinder air storage chamber; so that when the stratified scavenging two-stroke engine is scavenging, there is a large amount of pure air in the air storage chambers on both sides of the cylinder to clean the exhaust gas first, and then the mixed gas to clean, minimizing It prevents the mixed gas from being lost to the exhaust system along with waste, and at the same time greatly improves the quality, efficiency and utilization of the scavenging gas, and greatly reduces the content of HC, CO and other compounds in the exhaust gas.
  • the piston When the piston moves up in sequence, the piston opens the cylinder air intake port 19 and the cylinder air intake passage 12. At this time, when the carburetor throttle valve 11 on the carburetor 10 is fully opened, the pure air is under the action of atmospheric pressure. , through the carburetor choke valve 17 of the carburetor 10, the carburetor connecting piece 18, and the upper layer of the carburetor throttle valve 11, pure air enters the intake pipe 1 and flows into the upper layer air passage 5 through the intake pipe partition 9 in layers. 6, and then enter the cylinder 14.
  • the pure air When the piston goes down, the pure air first enters the combustion chamber to clean the exhaust gas, and then the pre-stored combustible mixed gas enters the combustion chamber for cleaning, which greatly improves the quality, efficiency and utilization of the scavenging gas, and reduces the combustible gas mixture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

一种分层扫气二冲程发动机的进气管（1），包括空气通道（5，6）、混合气通道（2，3）和进气管负压孔（4）；空气通道（5，6）、混合气通道（2，3）和进气管负压孔（4）相互独立；进气管负压孔（4）设置为贯穿进气管（1）。该分层扫气二冲程发动机的进气管（1），设有相互独立、互不干扰的空气通道（5，6）和混合气通道（2，3），能够提高分层扫气发动机的供气比，提高燃烧状态，且在进气管（1）中产生不同的流动性，使得更多的二行程机油附着在汽缸壁上。

Description

一种分层扫气二冲程发动机的进气管 技术领域
本发明涉及发动机领域，尤其涉及一种分层扫气二冲程发动机的进气管。
背景技术
当今内燃机技术发展的主要目标是节油和排放。二冲程汽油机因为其结构简单，升功率大，造价低廉，维修方便，得到了广泛应用，今后小型二冲程汽油机在割草机、油锯等手操作动力机械方面将会得到较广泛的应用。但是，二冲程汽油机的燃油消耗率高、排放污染严重。在节能和环保要求日趋严格的今天必须采用有效措施对其弱点加以克服，才能更好地扬长避短。
现有的进气管通常将进气管一分为二，一半作为空气通道，一半作为混合气通道，这种结构，存在以下问题：
现有的二冲程分层扫气发动机在运行中，纯空气经进气管空气通道、汽缸、活塞通道连通后,在汽缸的左、右扫气道预储存一部分空气,但无法有效计算出需多少纯空气容积,故现有的分层扫气发动机的进气管只具有普通空气连通功能。
发明内容
有鉴于现有技术的上述缺陷，本发明所要解决的技术问题是现有的进气管仅具有普通的空气连通功能，不具有空气存储，增加空气容积等功能。本发明提供了一种分层扫气二冲程发动机的进气管，设有相互独立、互不干扰的空气通道和混合气通道，增加空气的容积，提高分层扫气发动机的供气比，提高燃烧状态，且在进气管中产生不同的流动性，使得更多的二行程机油附着在汽缸壁上。
为实现上述目的，本发明提供了一种分层扫气二冲程发动机的进气管，空气通道、混合气通道和进气管负压孔；空气通道、混合气通道和进气管负压孔相互独立；进气管负压孔设置为贯穿进气管。
进一步地，空气通道包括空气通道分流板；空气通道分流板设置在空气通道固定连接，并且将空气通道分割成多通道。
进一步地，空气通道分流板设置为不规则形状。
进一步地，空气通道分流板横截面为由长方形和梯形组合而成，其中长方形的其中一短边与梯形的上底连接。
进一步地，混合气通道包括混合气通道整流板，混合气通道整流板设置在混合气通道的中间，且与混合气通道固定连接，将混合气通道分隔成第一混合气通道和第二 混合气通道。
进一步地，混合气通道整流板设有凸点。
进一步地，混合气通道整流板靠近化油器的一端设置有大小不一的半球形凸点。
进一步地，还包括进气管隔板，进气管隔板设置在空气通道和混合气通道之间。
进一步地，混合气通道的容积大于空气通道的容积。
进一步地，空气通道容积设置为2.98～4.12cc；混合气通道容积设置为3.68～5.34cc。
技术效果
本发明的进气管设有相互独立、互不干扰的空气通道和混合气通道，并且将空气通道和混合气通道分别通过分流板和整流板再一分为二，增强气体流动性；对空气通道和混合气通道的容积比调整，可以提高扫气发动机的供气比；对空气通道分流板和混合气通道整流板进行设置，增强流动性，提高燃烧效率。
本发明的进气管可以为分层扫气二冲程发动机增加进气管空气通道存储纯空气的容积，当活塞上行到一个位置时,有更多纯空气在汽缸的汽缸空气存储室存储；在分层扫气二冲程发动机在扫气时，汽缸两侧的空气储存室有大量的纯空气先行清扫废气，然后混合气再进行清扫，最大限度的减少了混合气随废弃损失到排气系统中，同时大大提高了扫气质量、扫气效率和扫气利用率，大大降低了废气中HC、CO等化合物的含量。
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。
附图说明
图1是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的立体示意图；
图2是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的主视图；
图3是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的后视图；
图4是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的剖视图；
图5是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的剖视图；
图6是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的混合气通道的横向剖视图；
图7是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管的空气通 道的横向剖视图；
图8是本发明的一个较佳实施例的一种分层扫气二冲程发动机的进气管连接方式示意图。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
以下描述中，为了说明而不是为了限定，提出了诸如特定内部程序、技术之类的具体细节，以便透彻理解本发明实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本发明。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本发明的描述。
如图1、2、3所示，本发明实施例提供了一种分层扫气二冲程发动机的进气管1，空气通道5、6，混合气通道2、3和进气管负压孔4；空气通道5、6，混合气通道2、3和进气管负压孔4相互独立；进气管负压孔4设置为贯穿进气管。本实施例中，空气通道5、6，混合气通道2、3和进气管负压孔4自上而下依次排列。空气通道和混合气通道可以重置位置，分别与汽缸的空气进气通道和混合气进气通道相对应即可。
其中，如图7所示，空气通道5、6包括空气通道分流板7；空气通道分流板设置在空气通道的中间，且与空气通道固定连接，将空气通道分隔成第一空气通道5和第二空气通道6。空气通道分流板设置为不规则形状。如图7所示，空气通道分流板7横截面为由长方形和梯形组合而成，其中长方形的其中一短边与梯形的上底连接。空气通道是长通道概念,设置分流板扰流功能,增加空气流速。
如图4和6所示，混合气通道包括混合气通道整流板8，混合气通道整流板设置在混合气通道的中间，且与混合气通道固定连接，将混合气通道分隔成第一混合气通道2和第二混合气通道3。混合气通道整流板8设有凸点。混合气通道整流板靠近化油器的一端设置有大小不一的半球形凸点，凸点的设置可以有效的将混合气中的二行程机油充分产生不同的流动性，涡流挤进曲轴箱内，进而使更多的二行程机油附着在汽缸壁上，有助于燃烧产生更大的热能，从而增强发动力的动力。另外，二行程发动机都需要二行程机油润滑汽缸壁,降低汽缸温度,提高功率,避免汽缸拉缸。
如图5所示，本发明实施例的一种分层扫气二冲程发动机的进气管还包括进气管隔板9，进气管隔板9设置在空气通道5和混合气通道2之间，将空气通道5和混合气通道2分隔开来。
混合气通道的容积大于空气通道的容积。空气通道容积设置为2.98～4.12cc,优选为3.28cc,混合气通道容积设置为3.68～5.34cc，优选为4.99cc。
本实施例中，具有该实施例所述的进气管的二冲程分层扫气发动机，包括独立的汽缸空气存储室和独立的汽缸混合气存储室，当活塞上行到一个位置时，活塞打开汽缸空气进气口、汽缸空气进气通道后,纯空气依次经由化油器、进气管空气通道、汽缸空气进气口、活塞空气通道后,纯空气存储于汽缸空气存储室内；汽缸空气存储室的总容积范围设置为0.8～3.5cc,而汽缸空气储存室最佳值容积设置是2.15cc,空气通道内总容积需大于汽缸空气储存室最佳容积值,故进气管空气通道设计成长通道概念。因此本发明实施例的进气管并不是单纯的空气联通功能，而是为了配合具有相互独立的空气存储室和混合气存储室的汽缸，经过计算，设置了本实施例的进气管，从而增加了纯空气在汽缸空气存储室储存量；使得分层扫气二冲程发动机在扫气时，汽缸两侧的空气储存室有大量的纯空气先行清扫废气，然后混合气再进行清扫，最大限度的减少了混合气随废弃损失到排气系统中，同时大大提高了扫气质量、扫气效率和扫气利用率，大大降低了废气中HC、CO等化合物的含量。
以下将说明本发明实施例的一种分层扫气二冲程发动机的进气管的运行原理和过程：
当活塞依序上行时，活塞打开汽缸空气进气口19、汽缸空气进气通道12后，此时化油器10上化油器节气门11作动全开时，纯空气在大气压的作用下，通过化油器10的化油器阻风门17、化油器衔接片18、化油器节气门11上层，纯空气进入进气管1经由进气管隔板9分层流进上层空气通道5、6，进而进入汽缸14内。
当活塞依序继续上行时，活塞打开汽缸混合气进气口20、汽缸混合气进气通道13后，此时化油器10上化油器节气门11作动全开时，纯空气在大气压的作用下，通过化油器10的化油器阻风门17、化油器衔接片18、化油器节气门11下层，可燃混合气体进入进气管1经由进气管隔板9分层流进下层混合气通道2、3，进入汽缸14吸入到曲轴室内。
当活塞下行时，扫气时纯空气率先进入燃烧室内先行清扫废气，然后预存可燃混合气体进入燃烧室再进行清扫，大大提高了扫气质量、扫气效率、扫气利用率，降低可燃混合气随尾气排出的现象，从而大大降低尾气中HC、CO等有害化合物。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (10)

  1. 一种分层扫气二冲程发动机的进气管，其特征在于，空气通道、混合气通道和进气管负压孔；所述空气通道、所述混合气通道和所述进气管负压孔相互独立；所述进气管负压孔设置为贯穿所述进气管。
  2. 如权利要求1所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述空气通道包括空气通道分流板；所述空气通道分流板设置在所述空气通道固定连接，并且将所述空气通道分割成多通道。
  3. 如权利要求2所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述空气通道分流板设置为不规则形状。
  4. 如权利要求2所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述空气通道分流板横截面为由长方形和梯形组合而成，其中所述长方形的其中一短边与所述梯形的上底连接。
  5. 如权利要求1所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述混合气通道包括混合气通道整流板，所述混合气通道整流板设置在所述混合气通道的中间，且与所述混合气通道固定连接，将所述混合气通道分隔成第一混合气通道和第二混合气通道。
  6. 如权利要求5所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述混合气通道整流板设有凸点。
  7. 如权利要求6所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述混合气通道整流板靠近所述化油器的一端设置有大小不一的半球形凸点。
  8. 如权利要求1所述的一种分层扫气二冲程发动机的进气管，其特征在于，还包括进气管隔板，所述进气管隔板设置在所述空气通道和所述混合气通道之间。
  9. 如权利要求1所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述混合气通道的容积大于所述空气通道的容积。
  10. 如权利要求9所述的一种分层扫气二冲程发动机的进气管，其特征在于，所述空气通道容积设置为2.98～4.12cc；所述混合气通道容积设置为3.68～5.34cc。
PCT/CN2021/092405 2021-05-08 2021-05-08 一种分层扫气二冲程发动机的进气管 WO2022236479A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/092405 WO2022236479A1 (zh) 2021-05-08 2021-05-08 一种分层扫气二冲程发动机的进气管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/092405 WO2022236479A1 (zh) 2021-05-08 2021-05-08 一种分层扫气二冲程发动机的进气管

Publications (1)

Publication Number Publication Date
WO2022236479A1 true WO2022236479A1 (zh) 2022-11-17

Family

ID=84027821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/092405 WO2022236479A1 (zh) 2021-05-08 2021-05-08 一种分层扫气二冲程发动机的进气管

Country Status (1)

Country Link
WO (1) WO2022236479A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001173447A (ja) * 1999-12-15 2001-06-26 Komatsu Zenoah Co ピストンバルブ式層状掃気２サイクルエンジン
JP2001193466A (ja) * 2000-01-14 2001-07-17 Komatsu Zenoah Co 層状掃気２サイクルエンジンの掃気通路
US20030140874A1 (en) * 1999-12-15 2003-07-31 Ryoji Zama Piston valve type layered scavenging 2-cycle engine
CN102322333A (zh) * 2011-08-26 2012-01-18 山东华盛农业药械有限责任公司 一种二冲程分层扫气发动机
CN204511684U (zh) * 2015-03-09 2015-07-29 山东华盛农业药械有限责任公司 一种分层扫气二冲程汽油机缸体
CN113107661A (zh) * 2021-05-08 2021-07-13 永康市茂金园林机械有限公司 一种分层扫气二冲程发动机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001173447A (ja) * 1999-12-15 2001-06-26 Komatsu Zenoah Co ピストンバルブ式層状掃気２サイクルエンジン
US20030140874A1 (en) * 1999-12-15 2003-07-31 Ryoji Zama Piston valve type layered scavenging 2-cycle engine
JP2001193466A (ja) * 2000-01-14 2001-07-17 Komatsu Zenoah Co 層状掃気２サイクルエンジンの掃気通路
CN102322333A (zh) * 2011-08-26 2012-01-18 山东华盛农业药械有限责任公司 一种二冲程分层扫气发动机
CN204511684U (zh) * 2015-03-09 2015-07-29 山东华盛农业药械有限责任公司 一种分层扫气二冲程汽油机缸体
CN113107661A (zh) * 2021-05-08 2021-07-13 永康市茂金园林机械有限公司 一种分层扫气二冲程发动机

Similar Documents

Publication Publication Date Title
US4253432A (en) Intake system of an internal combustion engine of a counter-flow type
CN203783745U (zh) 一种分层扫气二冲程汽油机缸体
CN102322333A (zh) 一种二冲程分层扫气发动机
US4938191A (en) Induction device for multi-cylinder internal combustion engine
JPS585423A (ja) クランク室圧縮２サイクル内燃機関
WO2022236479A1 (zh) 一种分层扫气二冲程发动机的进气管
CN113107663A (zh) 一种分层扫气二冲程发动机的进气管
CN113107661A (zh) 一种分层扫气二冲程发动机
WO2020238820A1 (zh) 一种直流分层扫气二冲程发动机
WO2021244393A1 (zh) 一种分层扫气活塞
CN202300632U (zh) 一种二冲程分层扫气发动机
CN104500252B (zh) 一种分区分层稀薄燃烧发动机用汽缸盖
CN203022871U (zh) 二冲程分层扫气发动机
CN102392760A (zh) 二冲程分层扫气发动机化油器
TWM583485U (zh) 往復式發動機正壓導入主動式曲軸箱吹漏氣系統
CN215057779U (zh) 一种汽油机及其分层扫气气缸
CN204851377U (zh) 一种油气分离器
JPH0610110Y2 (ja) ドライサンプ給油式エンジンのブロ−バイガス還元装置
CN104791077A (zh) 一种新型二冲程分层扫气发动机
CN2256940Y (zh) 二冲程发动机的扫气系统
CN218177339U (zh) 一种二冲程内燃机防反喷结构
CN2217108Y (zh) 实现节油改善动力性能的二冲程汽油发动机汽缸扫气结构
CN202926487U (zh) 低排放小型二冲程汽油机
CN215633418U (zh) 一种与进气管集成的egr混合装置及发动机
CN202914172U (zh) 二冲程分层扫气汽油发动机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21941060

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21941060

Country of ref document: EP

Kind code of ref document: A1