CN104405466A - 压缩空气发动机高压进气门 - Google Patents

压缩空气发动机高压进气门 Download PDF

Info

Publication number
CN104405466A
CN104405466A CN201410567293.1A CN201410567293A CN104405466A CN 104405466 A CN104405466 A CN 104405466A CN 201410567293 A CN201410567293 A CN 201410567293A CN 104405466 A CN104405466 A CN 104405466A
Authority
CN
China
Prior art keywords
valve
air
high pressure
pressure
inlet 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
CN201410567293.1A
Other languages
English (en)
Inventor
孙培岩
唐运榜
满长忠
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.)
Dalian University of Technology
Original Assignee
Dalian University of Technology
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 Dalian University of Technology filed Critical Dalian University of Technology
Priority to CN201410567293.1A priority Critical patent/CN104405466A/zh
Publication of CN104405466A publication Critical patent/CN104405466A/zh
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/06—Valve members or valve-seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

本发明公开了一种压缩空气发动机高压进气门，该进气门在传统的进气门结构基础上，加上一柱塞，平衡掉高压空气对气门的轴向作用力，气门下部开有通气孔，使燃烧室与气室联通，平衡掉燃烧室内的气体压力对气门的作用力。当燃烧室气压低于大气压时，大气通过单向气阀进入燃烧室，减少发动机负功。新气门可以在高的压力下工作，而不必过度考虑凸轮的应力和凸轮轴的扭矩。结构简单易行。

Description

压缩空气发动机高压进气门
技术领域
本发明属于发动机技术领域，涉及压缩空气发动机，具体是指一种压缩空气发动机高压进气门。
背景技术
气动发动机进气压力的高低直接影响压缩空气的利用率，进气压力提高，就可减小高压储气的降压损失。
高压进气对进气门提出很高要求，由于高压压缩空气对传统进气门产生轴向作用力，凸轮轴所受作用力加大，为了减小凸轮轴凸轮的应力，进气门不能做的太大。进气门变小，又影响进气流量。电磁阀控制压缩空气进入气缸是人们很容易想到的方法，但到目前为止，大流量、高速、高压的电磁阀并没有出现。
作为汽车用气动发动机，工况变化频繁，发动机工作过程中，缸内不出现负压是设计中考虑的重要方面。
发明内容
本发明提供了一种新型的可以控制高压的压缩空气发动机高压进气门，该进气门在传统的进气门结构基础上，加上一柱塞，平衡掉高压空气对气门的轴向作用力，气门下部开有通气孔，使燃烧室与气室联通，平衡掉燃烧室内的气体压力对气门的作用力。当燃烧室气压低于大气压时，大气通过单向气阀进入燃烧室，减少发动机负功。
气门在打开或关闭状态中，气门所受的气体压力时刻平衡掉。从而使气门所受气体轴向力最小。凸轮的设计不必过分考虑进气压力问题。当燃烧室出现负压时，环境空气自动进入燃烧室，从而避免发动机做负功。
本发明的一种压缩空气发动机高压进气门，包括进气门、气室、气门柱塞、通气孔、单向气阀、气门柱塞密封圈和气门杆密封圈；压缩空气进气门设有气门柱塞，通气孔连接燃烧室与气室。气门柱塞上安装有气门柱塞密封圈，气门杆上安装有气门杆密封圈。在气室上方安装有单向气阀。
本发明的压缩空气发动机高压进气门，结构简单，可以在高压力下工作，而不必过度考虑凸轮的应力和凸轮轴的扭矩。
附图说明
附图为气动发动机高压进气门。
图中：1进气门；2气室；3气门柱塞；4通气孔；5单向气阀；6气门柱塞密封圈；7气门杆密封圈。
具体实施方式
下面结合附图与具体实施方式对本发明作进一步说明。
附图气动发动机进气门，由进气门1、气门柱塞3、通气孔4、单向气阀5、气室2、气门柱塞密封圈6、气门杆密封圈7组成。
由于设计有气门柱塞3，高压空气作用于气门上的合力最小。当打开气门，高压空气进入气缸，气缸内压力升高，压缩空气通过通气孔4进入气室2。平衡掉缸内压力对气门的作用力，使气门1轴向压力最小。进气门关闭，气室2中的压缩空气又通过通气孔4压入燃烧室。气门柱塞密封圈6保证压缩空气不从进气道进入气室2，气门杆密封圈7保证气室2中压缩空气不泄漏。
当燃烧室压力降低，低于环境压力，单向气阀5在压差作用下打开，环境大气进入气室2，再通过通气孔4进入燃烧室。减小发动机做负功。

Claims (1)

1.一种压缩空气发动机高压进气门，其特征是，该压缩空气发动机高压进气门包括进气门(1)、气室(2)、气门柱塞(3)、通气孔(4)、单向气阀(5)、气门柱塞密封圈6和气门杆密封圈7；压缩空气进气门(1)设有气门柱塞(3)，通气孔(4)连接燃烧室与气室(2)；气门柱塞(3)上安装有气门柱塞密封圈(6)，气门杆上安装有气门杆密封圈(7)；在气室(2)上方安装有单向气阀(5)。
CN201410567293.1A 2014-10-21 2014-10-21 压缩空气发动机高压进气门 Pending CN104405466A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410567293.1A CN104405466A (zh) 2014-10-21 2014-10-21 压缩空气发动机高压进气门

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410567293.1A CN104405466A (zh) 2014-10-21 2014-10-21 压缩空气发动机高压进气门

Publications (1)

Publication Number Publication Date
CN104405466A true CN104405466A (zh) 2015-03-11

Family

ID=52643121

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410567293.1A Pending CN104405466A (zh) 2014-10-21 2014-10-21 压缩空气发动机高压进气门

Country Status (1)

Country Link
CN (1) CN104405466A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929718A (zh) * 2015-06-27 2015-09-23 胡学文 气动发动机压力自平衡进气门组

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041404A (ja) * 1990-04-18 1992-01-06 Tadamiki Matsunaga エンジンの吸気弁及び排気弁
CN2222798Y (zh) * 1995-06-16 1996-03-20 宋双明 带柱塞的内燃机进气门
DE19504239A1 (de) * 1995-02-09 1996-08-14 Bosch Gmbh Robert Einlaßventil für einen Brennraum einer Brennkraftmaschine
GB2340881A (en) * 1998-08-19 2000-03-01 Benzion Olsfanger I.c. engine with outwardly-opening poppet valves held closed by cylinder pressure
CN101328847A (zh) * 2008-07-22 2008-12-24 浙江大学 管道天然气发动机恒负压出气装置
CN103429857A (zh) * 2011-02-02 2013-12-04 瓦锡兰芬兰有限公司 气体交换阀装置和气缸盖

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041404A (ja) * 1990-04-18 1992-01-06 Tadamiki Matsunaga エンジンの吸気弁及び排気弁
DE19504239A1 (de) * 1995-02-09 1996-08-14 Bosch Gmbh Robert Einlaßventil für einen Brennraum einer Brennkraftmaschine
CN2222798Y (zh) * 1995-06-16 1996-03-20 宋双明 带柱塞的内燃机进气门
GB2340881A (en) * 1998-08-19 2000-03-01 Benzion Olsfanger I.c. engine with outwardly-opening poppet valves held closed by cylinder pressure
CN101328847A (zh) * 2008-07-22 2008-12-24 浙江大学 管道天然气发动机恒负压出气装置
CN103429857A (zh) * 2011-02-02 2013-12-04 瓦锡兰芬兰有限公司 气体交换阀装置和气缸盖

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929718A (zh) * 2015-06-27 2015-09-23 胡学文 气动发动机压力自平衡进气门组

Similar Documents

Publication Publication Date Title
CN204127415U (zh) 高温先导式安全阀
CN205118352U (zh) 吸排气控制阀
CN104148563B (zh) 新型空气锤
CN109184847A (zh) 一种发动机压缩释放制动气门控制系统及其工作方法
CN202746018U (zh) 一种应用于重型燃气轮机的放气活门结构
CN104405466A (zh) 压缩空气发动机高压进气门
CN104527630B (zh) 一种活塞式气控截止阀
CN201547249U (zh) 高压气动截止阀
CN104948334A (zh) 柴油机安全气缸
CN202790490U (zh) 一种内呼吸式三位气缸总成
CN205001102U (zh) 双燃料混合动力船用发动机气缸起动阀
CN104019274A (zh) 一种自动锁紧式液动平板阀
CN209413957U (zh) 一种发动机压缩释放制动气门控制系统
RU2566858C1 (ru) Способ привода клапанов трёхклапанного газораспределителя двигателя внутреннего сгорания гидравлической системой привода с зарядкой гидроаккумулятора системы привода жидкостью из компенсационного гидроаккумулятора
CN203939652U (zh) 一种油气回收真空泵
CN204716323U (zh) 气动发动机压力自平衡进气门组
CN204083457U (zh) 冲量安全阀
CN206054752U (zh) 一种车用天然气减压器
CN201539389U (zh) 压缩机气缸
CN101852209B (zh) 反比例阀
CN204738879U (zh) 柴油机安全气缸
CN220828525U (zh) 一种二级关断阀
CN104110415B (zh) 高压转角下压缸
CN109915379A (zh) 一种常开式进气阀
CN210949963U (zh) 一种节流阀的高密封结构

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150311

WD01 Invention patent application deemed withdrawn after publication