JPH0315799Y2

JPH0315799Y2 -

Info

Publication number: JPH0315799Y2
Application number: JP18070684U
Authority: JP
Priority date: 1984-11-30
Filing date: 1984-11-30
Publication date: 1991-04-05
Also published as: JPS6195955U

Description

【考案の詳細な説明】（考案の利用分野）本考案は、スターリング機関用蓄熱器に関し、
特に詳述すれば、該蓄熱器内での圧力損失をなく
し、機関の出力・効率を増大させるために利用さ
れる。[Detailed description of the invention] (Field of application of the invention) The invention relates to a heat storage device for a Stirling engine.
Specifically, it is used to eliminate pressure loss within the heat storage device and increase the output and efficiency of the engine.

（従来技術とその問題点）スターリング機関に用いられる蓄熱器１は、第
５図および第６図に示す如く、一端でマニホール
ド２を介してヒータ３に且つ他端でクーラ４に接
続され、そのハウジング５内に蓄熱材６を収容す
る構成となつている。マニホールド２は、パイプ
状の長部部材で、ヒータ３を複数本連結させると
共に、蓄熱器１を往復する作動ガスを通す開口７
を蓄熱材６の方向に向けている。この例におい
て、蓄熱材６からマニホールド開口７への作動ガ
スの流れをみると、第６図に示すマニホールド２
の長手方向では、作動ガスの流路面積の急激な変
化はないが、第５図に示す断面では、蓄熱器１と
マニホールド開口７との間にに急激な作動ガス流
路面積の減少を生じる。従つて、蓄熱器１からマ
ニホールド開口７への作動ガスの流れは、第５図
でみて、蓄熱器１の上部両端で流れにくく、圧力
損失が生じている。(Prior art and its problems) As shown in FIGS. 5 and 6, a heat storage device 1 used in a Stirling engine is connected to a heater 3 via a manifold 2 at one end and a cooler 4 at the other end. The housing 5 is configured to house a heat storage material 6 therein. The manifold 2 is a long pipe-shaped member that connects a plurality of heaters 3 and has an opening 7 through which working gas reciprocates through the heat storage device 1.
is directed toward the heat storage material 6. In this example, when looking at the flow of working gas from the heat storage material 6 to the manifold opening 7, the flow of the working gas from the manifold 2 shown in FIG.
Although there is no sudden change in the working gas flow area in the longitudinal direction, in the cross section shown in FIG. 5, there is a sudden decrease in the working gas flow area between the heat storage device 1 and the manifold opening 7. . Therefore, as seen in FIG. 5, the flow of working gas from the heat storage device 1 to the manifold opening 7 is difficult at both ends of the top of the heat storage device 1, resulting in a pressure loss.

（本考案の技術的課題）本考案は、蓄熱器からマニホールドへの作動ガ
スの流れ（同様に逆方向においても）を滑らかに
することにより、前述した従来技術の不具合を解
消させることを、解決すべき技術的課題とする。(Technical problem of the present invention) The present invention solves the above-mentioned problems of the conventional technology by smoothing the flow of working gas from the heat storage device to the manifold (also in the opposite direction). This is a technical issue that should be addressed.

（本考案の技術的手段とその作用）本考案は、前述した従来技術の不具合を解消さ
せるために、蓄熱器のマニホールドへの接続部を
マニホールドの長手方向に沿つてのみ該マニホー
ルドに向い絞られた形の略台形とする技術的手段
を用いる。(Technical Means of the Present Invention and Its Effects) In order to eliminate the above-mentioned problems of the prior art, the present invention aims to narrow the connection part of the heat storage device to the manifold so that it faces the manifold only along the longitudinal direction of the manifold. Technical means are used to make the shape approximately trapezoidal.

この手段の採用は、クーラ、蓄熱器およびマニ
ホールド開口へと流れる作動ガスは、急激な流路
面積の変化を受けることなく、円滑な流れとな
る。 By employing this means, the working gas flowing to the cooler, heat storage, and manifold opening flows smoothly without being subjected to sudden changes in flow path area.

（実施例）第１図および第２図に示すように、蓄熱器８の
ハウジング９は、マニホールド側でマニホールド
２の長手方向に沿い、該マニホールド２に向い絞
られた形の略台形となつており、又、クーラ側で
は円筒となつている。即ち、蓄熱器ハウジング９
の上方部は、マニホールド２の長手方向に対し直
角な断面において、略台形１０の部分を有す。(Embodiment) As shown in FIGS. 1 and 2, the housing 9 of the heat storage device 8 is shaped like a trapezoid along the longitudinal direction of the manifold 2 on the manifold side and narrowed toward the manifold 2. It also has a cylindrical shape on the cooler side. That is, the heat storage housing 9
The upper portion has a substantially trapezoidal portion 10 in a cross section perpendicular to the longitudinal direction of the manifold 2 .

該ハウジング９内に蓄熱材６′を、第３図に示
す如く、その上部に略台形部分１１を有するよう
にして収める。又、マニホールド２′が、第４図
に示す如く、反つた形の場合、蓄熱器８′の上部
は、マニホールド２′の反りに合致するよう円弧
状とさせる。 The heat storage material 6' is housed in the housing 9 so as to have a substantially trapezoidal portion 11 at the top thereof, as shown in FIG. Further, when the manifold 2' has a warped shape as shown in FIG. 4, the upper part of the heat storage device 8' is formed into an arc shape to match the warp of the manifold 2'.

クーラ４から蓄熱器８に入つた作動ガスは、マ
ニホールド開口７へと順次収束して流れ、蓄熱器
８の略台形部分１０により、急激な流路面積の変
化を受けない。 The working gas that has entered the heat storage device 8 from the cooler 4 sequentially converges and flows toward the manifold opening 7, and due to the substantially trapezoidal portion 10 of the heat storage device 8, it is not subject to sudden changes in the flow path area.

（効果）本考案による蓄熱器は、その内部の蓄熱材に対
しほゞ均一に作動ガスを接触させ得るので、即
ち、蓄熱器内部に死容積がないので、スターリン
グ機関の出力増大が可能となる。(Effects) The heat storage device according to the present invention allows the working gas to contact the heat storage material inside the heat storage material almost uniformly, that is, there is no dead volume inside the heat storage device, so it is possible to increase the output of the Stirling engine. .

[Brief explanation of the drawing]

第１図は本考案の一例の蓄熱器の斜視図、第２
図は蓄熱器とマニホールドとを示す部分断面図、
第３図は蓄熱材の正面図、第４図は別の例の斜視
図、第５図は従来例の断面図、および第６図は第
５図の矢視−よりみた断面図である。図中：２……マニホールド、３……ヒータ、４
……クーラ、６，６′……蓄熱材、８……蓄熱器、
９……ハウジング、１０……略台形部分。 Figure 1 is a perspective view of a heat storage device as an example of the present invention;
The figure is a partial sectional view showing a heat storage device and a manifold.
3 is a front view of the heat storage material, FIG. 4 is a perspective view of another example, FIG. 5 is a sectional view of a conventional example, and FIG. 6 is a sectional view taken from the direction of the arrow in FIG. In the diagram: 2...Manifold, 3...Heater, 4
... Cooler, 6,6' ... Heat storage material, 8 ... Heat storage device,
9...Housing, 10...Substantially trapezoidal part.

Claims

[Scope of utility model registration request]

In a Stirling engine heat storage device in which one end is connected to a heater through a manifold and the other end is connected to a cooler, a connection portion of the heat storage device to the manifold is narrowed toward the manifold only along the longitudinal direction of the manifold. A heat storage device for a Stirling engine, characterized by a substantially trapezoidal shape.