WO2015149575A1 - 压缩气体发动机的叶轮及相应的发动机 - Google Patents

压缩气体发动机的叶轮及相应的发动机 Download PDF

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Publication number
WO2015149575A1
WO2015149575A1 PCT/CN2015/070644 CN2015070644W WO2015149575A1 WO 2015149575 A1 WO2015149575 A1 WO 2015149575A1 CN 2015070644 W CN2015070644 W CN 2015070644W WO 2015149575 A1 WO2015149575 A1 WO 2015149575A1
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Prior art keywords
impeller
compressed gas
tooth
guiding surface
engine
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PCT/CN2015/070644
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English (en)
French (fr)
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丛洋
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丛洋
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Publication of WO2015149575A1 publication Critical patent/WO2015149575A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/32—Non-positive-displacement machines or engines, e.g. steam turbines with pressure velocity transformation exclusively in rotor, e.g. the rotor rotating under the influence of jets issuing from the rotor, e.g. Heron turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/18—Non-positive-displacement machines or engines, e.g. steam turbines without stationary working-fluid guiding means
    • F01D1/22—Non-positive-displacement machines or engines, e.g. steam turbines without stationary working-fluid guiding means traversed by the working-fluid substantially radially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/34—Non-positive-displacement machines or engines, e.g. steam turbines characterised by non-bladed rotor, e.g. with drilled holes

Definitions

  • the invention relates to the technical field of machinery, and in particular to an impeller of a compressed gas engine and a corresponding engine.
  • An engine that uses fuel as an energy source consumes a large amount of fuel and emits a large amount of exhaust gas, polluting the environment.
  • the applicant of the present invention has proposed a series of inventions and creations on the blast engine and the motor vehicle, including, on December 12, 2007, the publication number is CN101087946A, and the name is "the wind engine is the wind power.
  • These blast engines have at least one impeller chamber, an impeller housed within the impeller chamber, and a jet system for injecting compressed gas into the impeller chamber.
  • these ventilated engines When in use, these ventilated engines can be installed on a power-driven power machine, using compressed gas as the main power, no fuel consumption, no exhaust gas, hot gas emissions, and no pollution. However, experiments have shown that these engines produce louder noise.
  • an impeller for a compressed gas engine includes a blade tooth that is equally divided along a rotating circumferential surface of the impeller, wherein a side of the blade tooth that faces the compressed gas is a windward side, and the other side is a wind guiding surface.
  • the air guiding surface of the tooth is substantially flat, and the angle between the air guiding surface and the axial plane is greater than 90 degrees and less than 130 degrees.
  • the so-called axial plane refers to the plane of the rotating shaft of the impeller and the tooth end of the blade tooth.
  • a compressed gas engine comprising an impeller chamber and the above-described impeller according to an aspect of the present invention, wherein the impeller chamber is provided with a discharge hole for injecting a compressed gas and a discharge hole for discharging a compressed gas,
  • the impeller is mounted on the impeller chamber through a rotating shaft, and the rotating circumferential surface of the impeller cooperates with the air gap of the inner surface of the impeller chamber.
  • the impeller of the present invention since the air guiding surface of the blade teeth is substantially flat rather than the curved surface generally used, in actual use, the noise generated after the injection of the compressed gas can be effectively reduced, which contributes to the improvement of the use of the corresponding engine. The comfort of the vehicle.
  • Figure 1 is a schematic radial cross-sectional view of the impeller of Embodiment 1;
  • FIG. 2 is a schematic cross-sectional view of a conventional compressed gas engine
  • FIG. 3 is a schematic radial cross-sectional view of a compressed gas engine of Embodiment 2.
  • FIG. 1 An embodiment of the impeller of the compressed gas engine according to the present invention can be referred to FIG. 1, including the blade teeth 101 equally divided along the rotating circumferential surface a1 of the impeller, and the side a2 of the blade teeth facing the compressed gas is a windward side, and One side a3 is the wind guiding surface, and the air guiding surface of the leaf teeth is substantially flat.
  • the angle a5 between the air guiding surface and the axial plane a4 is substantially 110 degrees
  • the axial plane refers to the plane where the rotating shaft 102 of the impeller and the tooth end of the blade tooth to which the air guiding surface belongs.
  • the preferred angle is such that the noise generated after the injection of the compressed gas is well reduced.
  • the angle between the two faces is described by the angle between the direction in which the wind guiding surface extends from the tooth end toward the outside of the impeller and the direction in which the axial plane extends from the tooth end into the impeller.
  • Use the complementary angle to describe, for example, the angle between the direction in which the air guiding surface extends from the tooth end into the impeller and the direction in which the axial plane extends from the tooth end into the impeller.
  • the angle is basically 70 degrees.
  • the angle a5 may also be other angles greater than 90 degrees and less than 130 degrees, as long as the air guiding surface is substantially flat rather than the generally curved surface, which can reduce the generation of compressed gas after injection.
  • the role of noise Referring to Fig. 2, in the conventional compressed gas engine, the air guiding surface a3 of the blade teeth is curved, and the compressed gas is easily injected at a high speed to easily generate a large noise in the working chamber between the air guiding surface a3 and the windward surface a2. . When the air guiding surface a3 is changed to the basic plane shape, the noise generated in the working chamber is effectively reduced.
  • the impeller further comprises a side plate (since the side plate is parallel to the radial section, not shown), located on both sides of the blade tooth 101, the wind guiding surface of the side plate and the front leaf tooth and the wind of the current blade tooth The faces together form the working cavity of the current leaf tooth. This makes the working chamber relatively closed, and is more advantageous for making full use of the energy of the injected compressed gas.
  • FIG. 3 One embodiment of a compressed gas engine in accordance with the present invention can be seen in reference to FIG. 3, including an impeller chamber 20 and an impeller 10.
  • the impeller chamber 20 is provided with a discharge hole 201 into which compressed gas is injected and a discharge hole 202 through which compressed gas is discharged.
  • a discharge hole 201 into which compressed gas is injected and a discharge hole 202 through which compressed gas is discharged.
  • three injection holes and three discharge holes are schematically distributed along the circumferential surface of the impeller chamber. In other embodiments, more or fewer injection holes and discharge holes may be provided, for example, six sprays. Inlet hole, three discharge holes, etc. Each of the injection hole and the discharge hole may be equally divided along the circumferential surface of the impeller chamber.
  • the discharge hole is generally adjacent to the injection hole in the direction of rotation of the impeller (the distance is greater than one blade tooth). The distance) is located before the injection hole.
  • the impeller 10 is mounted on the impeller chamber through the rotating shaft 102, and the rotating circumferential surface of the impeller 10 is matched with the inner surface air gap of the impeller chamber.
  • the impeller 10 specifically adopts the structure described in Embodiment 1.
  • the impeller may also employ other variations in accordance with the present invention, such as using other angles greater than 90 degrees and less than 130 degrees between the air guiding surface of the blade teeth and the axial plane.
  • a further preferred arrangement employed in the present embodiment is that the direction in which the compressed gas is injected into the injection hole 201 is substantially the same as the inclination of the air guiding surface a3, so that the injected gas can be smoothly smoothed.
  • the windward surface acts on the windward side a2 of the next leaf tooth.
  • the impeller 10 further comprises a side plate (since the side plate is parallel to the radial section, not shown), located on both sides of the blade tooth 101, the air guiding surface of the side plate and the front leaf tooth and the current leaf tooth
  • the windward surface together forms the working cavity of the current blade tooth, and the inner wall of the impeller chamber matched with the air gap of the impeller makes the working cavity a relatively closed space, which is more advantageous for making full use of the energy of the injected compressed gas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种压缩气体发动机的叶轮，包括沿叶轮的转动周面（a1）等分设置的叶齿（101），叶齿（101）面向喷入压缩气体的一面为迎风面（a2），另一面为导风面（a3），叶齿（101）的导风面（a3）基本为平面，导风面（a3）与轴向平面（a4）之间的夹角（a5）大于90度小于130度，该轴向平面（a4）指叶轮的转轴（102）与该叶齿（101）的齿端所在的平面。还公开了这种压缩气体发动机叶轮相应的发动机。在实际使用中，所述叶轮能够有效降低压缩气体喷入后产生的噪声。

Description

压缩气体发动机的叶轮及相应的发动机 技术领域
本发明涉及机械技术领域，具体涉及一种压缩气体发动机的叶轮及相应的发动机。
 背景技术
用燃料作为能源的发动机需要消耗大量的燃料，且又排放大量的废气，污染环境。
为了保护地球环境，本发明的申请人提出了一系列的关于风气发动机及机动车的发明创造，包括，公布日为2007年12月12日，公布号为CN101087946A，名称为“风气发动机即采用风力气压取代燃料能源的发动机”的中国专利；公布日为2009年10月7日，公布号为CN101550915A，名称为“风气发动机及机动车”的中国专利；公布日为2011年12月28日，公布号为CN102296990A，名称为“改进的压缩气体发动机”的中国专利申请等。这些风气发动机具有至少一个叶轮室、装设在叶轮室内的叶轮和用于将压缩气体喷入叶轮室的喷气系统。
在使用时，这些风气发动机可以安装在能够行驶的动力机械上，采用压缩气体作为主动力，无燃料消耗，无废气、热气排放，无污染。不过，实验表明，这些发动机会产生较大的噪音。
 发明内容
依据本发明的一方面提供一种压缩气体发动机的叶轮，包括沿叶轮的转动周面等分设置的叶齿，叶齿面向喷入压缩气体的一面为迎风面，另一面为导风面，叶齿的导风面基本为平面，导风面与轴向平面之间的夹角大于90度小于130度，所称轴向平面指叶轮的转轴与该叶齿的齿端所在的平面。
依据本发明的另一方面提供一种压缩气体发动机，包括叶轮室和上述依据本发明的一方面的叶轮，叶轮室上设置有喷入压缩气体的喷入孔和喷出压缩气体的排出孔，叶轮通过转轴装设于叶轮室，叶轮的转动周面与叶轮室的内表面气隙配合。
依据本发明的叶轮由于叶齿的导风面基本为平面而不是通常所使用的弧形表面，在实际使用中，能够有效降低压缩气体喷入后产生的噪声，有助于提高使用相应发动机的车辆的舒适性。
以下结合附图，对本发明的具体示例进行详细说明。
附图说明
图1是实施例1的叶轮的径向截面示意图；
图2是一种现有压缩气体发动机的径向截面示意图；
图3是实施例2的压缩气体发动机的径向截面示意图。
具体实施方式
实施例1
依据本发明的压缩气体发动机的叶轮的一种实施方式可参考图1，包括沿叶轮的转动周面a1等分设置的叶齿101，叶齿面向喷入压缩气体的一面a2为迎风面，另一面a3为导风面，叶齿的导风面基本为平面。
本实施例中，导风面与轴向平面a4之间的夹角a5基本为110度，所称轴向平面指叶轮的转轴102与导风面所属的叶齿的齿端所在的平面。在实际使用中，该优选的角度能够很好地降低压缩气体喷入后产生的噪声。
可以理解的是，此处以导风面自齿端向叶轮外延伸的方向与轴向平面自齿端向叶轮内延伸的方向之间所成的角度来描述这两个面的夹角，也可以使用其补角来描述，例如，导风面自齿端向叶轮内延伸的方向与轴向平面自齿端向叶轮内延伸的方向之间所成的角度，这种情况下，该角度基本为70度。
在其他实施例中，夹角a5也可以是大于90度小于130度的其他角度，只要导风面基本为平面而不是通常所使用的弧形表面，即可起到降低压缩气体喷入后产生的噪声的作用。参见图2，现有的压缩气体发动机中，叶齿的导风面a3呈弧形，压缩气体高速喷入后容易在导风面a3与迎风面a2之间的工作腔中产生很大的噪声。而将导风面a3改为基本平面的形状后，工作腔中产生的噪声得到了有效的降低。
进一步优选的是，叶轮还包括有侧板（由于侧板与径向截面平行，未图示），位于叶齿101两侧，侧板与前一叶齿的导风面和当前叶齿的迎风面一起围成当前叶齿的工作腔。这样使得工作腔相对密闭，更加有利于充分利用喷入的压缩气体的能量。
实施例2
依据本发明的压缩气体发动机的一种实施方式可参考图3，包括叶轮室20和叶轮10。
叶轮室20上设置有喷入压缩气体的喷入孔201和喷出压缩气体的排出孔202。图3中示意性地沿叶轮室的周面分布了喷入孔和排出孔各三个，在其他实施例中，也可以设置更多或更少的喷入孔和排出孔，例如六个喷入孔、三个排出孔等。喷入孔和排出孔每一种一般可沿叶轮室的周面等分设置，为更好地利用压缩气体的能量，沿叶轮的旋转方向，排出孔一般靠近喷入孔（相距大于一个叶齿的距离）并位于喷入孔之前。
叶轮10通过转轴102装设于叶轮室，叶轮10的转动周面与叶轮室的内表面气隙配合。本实施例中，叶轮10具体采用实施例1中所描述的结构。在其他实施例中，叶轮也可采用依据本发明的其他变化的结构，例如叶齿的导风面与轴向平面之间采用大于90度小于130度的其他角度。
为更好地降低噪声，本实施例中所采用的进一步优选的设置是，喷入孔201中喷入压缩气体的方向与导风面a3的倾斜程度基本一致，使得喷入的气体能够顺畅地通过导风面作用在下一个叶齿的迎风面a2上。
进一步优选的是，叶轮10还包括有侧板（由于侧板与径向截面平行，未图示），位于叶齿101两侧，侧板与前一叶齿的导风面和当前叶齿的迎风面一起围成当前叶齿的工作腔，再加上与叶轮气隙配合的叶轮室的内壁，使得工作腔成为一个相对密闭的空间，更加有利于充分利用喷入的压缩气体的能量。
以上应用具体个例对本发明的原理及实施方式进行了阐述，应该理解，以上实施方式只是用于帮助理解本发明，而不应理解为对本发明的限制。对于本领域的一般技术人员，依据本发明的思想，可以对上述具体实施方式进行变化。

Claims (7)

  1. 一种压缩气体发动机的叶轮，包括：
    叶齿(101)，沿叶轮的转动周面(a1)等分设置，所述叶齿面向喷入压缩气体的一面(a2)为迎风面，另一面(a3)为导风面；
    其特征在于，
    所述叶齿的导风面基本为平面，所述导风面与轴向平面(a4)之间的夹角(a5)大于90度小于130度，所述轴向平面指叶轮的转轴(102)与该叶齿的齿端所在的平面。
  2. 如权利要求1所述的叶轮，其特征在于，
    所述导风面与轴向平面之间的夹角基本为110度。
  3. 如权利要求1或2所述的叶轮，其特征在于，还包括：
    侧板，位于叶齿两侧，所述侧板与前一叶齿的导风面和当前叶齿的迎风面一起围成当前叶齿的工作腔。
  4. 一种压缩气体发动机，包括：
    叶轮室(20)，其上设置有喷入压缩气体的喷入孔和喷出压缩气体的排出孔；
    叶轮(10)，通过转轴装设于所述叶轮室，所述叶轮包括叶齿，沿叶轮的转动周面等分设置，所述叶齿面向喷入压缩气体的一面为迎风面，另一面为导风面，所述叶轮的转动周面与所述叶轮室的内表面气隙配合；
    其特征在于，
    所述叶齿的导风面基本为平面，所述导风面与轴向平面之间的夹角大于90度小于130度，所述轴向平面指叶轮的转轴与该叶齿的齿端所在的平面。
  5. 如权利要求4所述的发动机，其特征在于，
    所述导风面与轴向平面之间的夹角基本为110度。
  6. 如权利要求4或5所述的发动机，其特征在于，
    所述喷入孔中喷入压缩气体的方向与所述导风面的倾斜程度基本一致。
  7. 如权利要求4或5所述的发动机，其特征在于，还包括：
    侧板，位于叶齿两侧，所述侧板与前一叶齿的导风面和当前叶齿的迎风面一起围成当前叶齿的工作腔。
PCT/CN2015/070644 2014-04-04 2015-01-14 压缩气体发动机的叶轮及相应的发动机 WO2015149575A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2130344A1 (en) * 2021-12-06 2023-06-07 Wadeea Khalaf Hydro-Compressed Air Pure Energy. (HCAPE)

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Publication number Priority date Publication date Assignee Title
US4604029A (en) * 1983-04-20 1986-08-05 Findeva Ag Compressed-air vibrator with turbine drive
CN101135246A (zh) * 2007-04-18 2008-03-05 陈志新 车载喷气轮机
WO2009128623A2 (ko) * 2008-04-18 2009-10-22 Park Joontai 압축공기엔진
CN102296990A (zh) * 2010-06-25 2011-12-28 丛洋 改进的压缩气体发动机
CN203856515U (zh) * 2014-04-04 2014-10-01 丛洋 压缩气体发动机的叶轮及相应的发动机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604029A (en) * 1983-04-20 1986-08-05 Findeva Ag Compressed-air vibrator with turbine drive
CN101135246A (zh) * 2007-04-18 2008-03-05 陈志新 车载喷气轮机
WO2009128623A2 (ko) * 2008-04-18 2009-10-22 Park Joontai 압축공기엔진
CN102296990A (zh) * 2010-06-25 2011-12-28 丛洋 改进的压缩气体发动机
CN203856515U (zh) * 2014-04-04 2014-10-01 丛洋 压缩气体发动机的叶轮及相应的发动机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2130344A1 (en) * 2021-12-06 2023-06-07 Wadeea Khalaf Hydro-Compressed Air Pure Energy. (HCAPE)

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