CN102177325A - 带有对齐排列的转子的旋转式发动机 - Google Patents
带有对齐排列的转子的旋转式发动机 Download PDFInfo
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- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/04—Charge admission or combustion-gas discharge
- F02B53/08—Charging, e.g. by means of rotary-piston pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
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- 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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
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- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/027—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with two or more valves arranged coaxially
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- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B2053/005—Wankel engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
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- 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
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- Valve-Gear Or Valve Arrangements (AREA)
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Abstract
旋转式发动机的轴限定旋转轴线,第一偏心凸轮沿旋转轴线与第二偏心凸轮轴向分隔开,第一偏心凸轮与第二偏心凸轮对齐排列。
Description
背景技术
本发明要求2008年10月8日提交的序号为No. 61/103682的美国临时专利申请的优先权,该临时专利申请通过参考并入本文。
本发明的涉及一种旋转式发动机。
发动机技术在功率密度与燃料消耗之间提供各种权衡。燃气涡轮发动机技术提供相当高的功率密度,但在相对较小的尺寸下,燃料消耗相对较大且效率相对较低。较小的柴油活塞发动机具有合理的燃料消耗但可能相对较重,其中功率密度通常小于大约0.5hp/lb,而同等尺寸的四冲程发动机具有通常小于大约0.8hp/lb的功率密度。两冲程发动机具有比尺寸相当的四冲程发动机更大的功率密度,但燃料消耗相对较大。
附图说明
通过在下面对所披露的非限制性实施例的详细描述,各种特征对于本领域的技术人员将是显而易见的。详细描述所参照的附图可简要地表述为如下内容:
图1是示例性旋转式发动机的方框示意图;
图2是示例性旋转式发动机的局部透视图;
图3是图1的示例性旋转式发动机的局部装配图,图3示出了第一转子部;
图4是图1的示例性旋转式发动机的局部装配图,图4示出了第二转子部;
图5是旋转式发动机的分解图;
图6是旋转式发动机的轴组件的纵向剖视图;
图7是旋转式发动机的轴的立体图;
图8是根据本发明的轴的立体图,其中第一转子和第二转子以顶点对齐排列的构造安装在该轴上;以及
图9是表示第一转子和第二转子的超前角与有效功率的关系的曲线图表示。
具体实施方式
图1示意性示出了具有第一转子部22和第二转子部24的旋转式发动机20。旋转式发动机20是基于旋转的,例如,汪克尔型发动机。进气口26将环境空气输送到第一转子部22,排气口28将排气产物从第一转子部排出。第一传输管道30和第二传输管道32使第一转子部22与第二转子部24之间连通。燃料系统36与诸如JP-8、JP-4、天然气、氢柴油以及其它的重质燃料一起使用,燃料系统36与发动机20的第二转子部24连通。对于各种商业、工业、紧凑便携的动力产生以及航空航天应用,发动机20同时实现了高功率密度和低燃料消耗。
参照图2,旋转式发动机20通常包括绕旋转轴线A旋转的至少一个轴38。轴38包括分别驱动第一转子44和第二转子46的对齐排列的偏心凸轮40、42(图3和图4),第一转子44和第二转子46由同一轴38以协调的方式驱动。第一转子44和第二转子46可分别在由静止的第一转子壳体52和静止的第二转子壳体54(图3和图4)形成的空间48、50中旋转。在一个非限制性实施例中,燃料系统36包括一个或多个燃料喷射器,其中示出的与第二转子空间50连通的两个燃料喷射器36A、36B基本上与传输管道30、32在非限制性实施例中所在的该空间50的一侧相对。应该理解的是,可以替换地或附加地设置其它燃料喷射器布置、位置以及数量。燃料系统36将燃料供给到第二转子空间50中。在一个非限制性实施例中,第一转子空间48形成比第二转子空间50更大的空间。应该理解的是,可以替换地或附加地设置各种壳体构造形状和布置(图5)。
第一转子44和第二转子46具有外围表面,第一转子44和第二转子46的外围表面分别包括沿圆周方向分隔开的三个顶点44A、46A。每个顶点44A、46A都包括顶点密封件44B,46B,这些顶点密封件与相应空间48、50的外围表面48P、50P滑动密封接合。空间48、50在垂直于旋转轴线A的平面内的表面大体为具有两凸角外旋轮线的表面,而转子44、46在同一平面内的表面大体为具有所述两凸角外旋轮线的三凸角内包络线的表面。
参照图6,转子44、46分别安装到对应的外齿轮56、58,外齿轮56、58与围绕轴线A安装的互补的旋转固定齿轮60、62啮合接合从而提供协调的旋转。第一转子的固定齿轮60可设置在轴38的第一端部38A与第一转子凸轮40之间。第二转子的固定齿轮62可设置在轴38的第二端部38B与第二转子凸轮42之间。第一转子凸轮40在第一转子的固定齿轮60与第一转子的外齿轮56啮合接合时驱动第一转子44,而第二转子凸轮42在第二转子的固定齿轮62与第二转子的外齿轮58啮合接合时驱动第二转子46,使得第一转子44和第二转子46以相同的角度方向和相同的转速运转。
在工作中,空气经由进气口26(图1)进入发动机20中。第一转子44提供第一阶段的压缩,并且第一传输管道30将来自第一转子空间48的压缩空气输送到第二转子空间50(图2和图3)。第二转子46提供第二阶段的压缩、燃烧以及第一阶段的膨胀,随后第二传输管道32将来自第二转子空间50的废气输送到第一转子空间48(图2和图4)。第一转子44提供对废气的第二阶段的膨胀,膨胀的废气经由排气口28(图1和图2)排出。轴38在每个循环完成一周的旋转,因此,对于每个完整的转子旋转,存在三周(3)的曲柄旋转。由于每个转子面在每周旋转时完成一个循环并且两个转子总共有六个面,所以发动机在相对较小的排量内产生很大的功率。
轴38可包括可轴向分离的部分,在一个非限制性实施例中,可轴向分离的部分可在凸轮40、42之间分离以便于组装。替换或附加地,第一转子凸轮40和第二转子凸轮42也可为可分离的部分。轴38的可分离的部分可通过拉杆或其它紧固设备组装,以便于诸如旋转固定齿轮60、62的组装之类的组装。
轴38还可围绕扩径轴部38C支撑轴承60B、衬套62B或其它低摩擦装置。扩径轴部38C允许相对更大直径的轴承、衬套或其它低摩擦装置提供增大结构刚度并减小润滑需求的坚固和可靠的接合区域。
参照图7,第一转子凸轮40和第二转子凸轮42对齐排列,使得第一转子44和第二转子46以顶点对齐排列的构造(图8)运转。即,第一转子44的每个顶点44A与第二转子46的每个顶点46A对齐,并且相应的偏心凸轮40、42也对齐。在一个非限制性实施例中,第一转子44的每个顶点44A在第二转子46的每个顶点46A的二十(20)度的范围内,并且相应凸轮40、42的偏心度在彼此的六十(60)度的范围内。在其它的实例中,相应顶点44A、46A在彼此的十五度的范围内或者在彼此的10度的范围内。第一转子凸轮40可具有不同于第二转子凸轮42的尺寸。
参照图9,与凸轮40、42未对齐的超前角布置相比,顶点对齐排列的构造提供了净功率输出效果。在非对齐排列的构造中,功率相对较低。同样地,功率随着凸轮40、42变得对齐而增大。顶点对齐排列的构造使第一和第二传输管道30、32的长度和随后使其体积最小化,由此大幅地提高功率、效率以及结构刚度并减小发动机质量和封装考虑因素。对齐排列的转子构造还有利于传输端口正时,由此通过使第一与第二转子44、46之间的质量转移在循环的压缩和膨胀两阶段最大化更进一步提高功率和效率。
应该理解的是,在所有的图中相同的附图标记表示相应或相似的部件。还应该理解的是,尽管在所示实施例中披露了具体的部件布置,但其它的布置也将从本文获益。
尽管示出、描述以及要求保护了具体的步骤顺序,但应该理解的是,这些步骤除非另外说明否则可以任何的顺序执行、分离或组合并仍受益于本发明。
前面的描述是示例性的,而不用于限制本发明。本文披露了各种非限制性实施例,但本领域的技术人员将认识到,根据上面的教义的各种修改和变型将落入所附权利要求的范围内。因此,应该理解的是,可在所附权利要求的范围内以具体描述的方式以外的方式实施本发明。为此,应该研习所附权利要求来确定真实的范围和内容。
Claims (15)
1. 一种旋转式发动机,包括:
具有第一凸轮和第二凸轮的轴,所述第一凸轮与所述第二凸轮轴向分隔开并与所述第二凸轮对齐排列。
2. 如权利要求1所述的旋转式发动机,其中,所述第一凸轮在所述第二凸轮的六十(60)度的范围内对齐排列。
3. 如权利要求1所述的旋转式发动机,其中,所述第一凸轮限定不同于所述第二凸轮的直径的直径。
4. 如权利要求1所述的旋转式发动机,其中,所述轴在所述第一凸轮与所述第二凸轮之间可分离。
5. 一种旋转式发动机,包括:
包括第一凸轮和第二凸轮的轴,所述第一凸轮与所述第二凸轮轴向分隔开;
至少部分程度上围绕所述第一凸轮安装的第一转子,所述第一转子具有转子顶点部分;以及
至少部分程度上围绕所述第二凸轮安装的第二转子,所述第二转子具有转子顶点部分,其中,所述第一凸轮的所述转子顶点部分与所述第二凸轮的所述转子顶点部分对齐排列。
6. 如权利要求5所述的旋转式发动机,其中,所述第一凸轮在所述第二凸轮的六十(60)度的范围内对齐排列。
7. 如权利要求5所述的旋转式发动机,其中,各自的转子顶点部分在彼此的二十(20)度的范围内对齐排列。
8. 如权利要求5所述的旋转式发动机,其中,所述第一凸轮在所述第二凸轮的九十(90)度的范围内对齐排列。
9. 如权利要求5所述的旋转式发动机,其中,各自的转子顶点部分在彼此的三十(30)度的范围内对齐排列。
10. 一种旋转式发动机,包括:
提供第一阶段的压缩的第一转子;以及
第二转子,所述第二转子与所述第一转子连通以提供第二阶段的压缩、燃烧以及第一阶段的膨胀,所述第二转子与所述第一转子连通以提供第二阶段的膨胀,所述第一转子和所述第二转子被单个轴旋转使得相应的所述第一转子和所述第二转子的每个顶点对齐排列。
11. 如权利要求10所述的旋转式发动机,其中,相应的所述第一转子和所述第二转子的每个顶点在三十(30)度的范围内对齐排列。
12. 如权利要求10所述的旋转式发动机,其中,所述第一转子限定比所述第二转子更大的转子外围。
13. 如权利要求10所述的旋转式发动机,其中,所述第一转子至少部分程度上围绕所述轴的第一偏心凸轮安装,所述第二转子至少部分程度上围绕所述轴的第二偏心凸轮安装。
14. 如权利要求10所述的旋转式发动机,其中,所述第一转子限定三个沿圆周方向分隔的第一转子顶点,第二转子限定三个沿圆周方向分隔的第二转子顶点。
15. 如权利要求14所述的旋转式发动机,其中,相应的所述第一转子和所述第二转子的每个顶点在六十(60)度的范围内对齐排列。
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PCT/US2009/059959 WO2010042693A2 (en) | 2008-10-08 | 2009-10-08 | Rotary engine with aligned rotor |
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US9435204B2 (en) | 2011-03-21 | 2016-09-06 | United Technologies Corporation | Structurally efficient cooled engine housing for rotary engines |
KR102282775B1 (ko) | 2017-05-22 | 2021-07-28 | 엘지전자 주식회사 | 로터리 엔진 |
US20200018228A1 (en) * | 2018-07-16 | 2020-01-16 | Avner Ronen | Rotary combustion engine rotor deactivation and method |
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- 2009-10-08 CN CN2009801400333A patent/CN102177325A/zh active Pending
- 2009-10-08 DE DE112009002301T patent/DE112009002301T5/de not_active Withdrawn
- 2009-10-08 US US13/121,246 patent/US20110174261A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
WO2010042693A2 (en) | 2010-04-15 |
DE112009002301T5 (de) | 2012-01-19 |
US20110174261A1 (en) | 2011-07-21 |
WO2010042693A3 (en) | 2010-07-29 |
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