JPS6240256U - - Google Patents
Info
- Publication number
- JPS6240256U JPS6240256U JP13088285U JP13088285U JPS6240256U JP S6240256 U JPS6240256 U JP S6240256U JP 13088285 U JP13088285 U JP 13088285U JP 13088285 U JP13088285 U JP 13088285U JP S6240256 U JPS6240256 U JP S6240256U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- flange
- diaphragm
- pressure piston
- annular thick
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 241000234435 Lilium Species 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Diaphragms And Bellows (AREA)
- Fluid-Driven Valves (AREA)
Description
第１図乃至第４図は本考案の定負圧式気化器の
負圧ピストンの実施例を、第５図ａ，ｂ，ｃは実
施例の負圧ピストンにダイアフラムを装着する手
順を、第６図はダイアフラムが燃料で膨潤したと
きにも気密が保持される状態を、第７図は定負圧
式気化器の従来構成を、第８図は実開昭６０―４
３１６０号開示の負圧ピストン及びダイアフラム
の構成をそれぞれ示す図である。
符号の説明：２……負圧ピストン、４……ダイ
アフラム、２０１……第１の鍔、２０２……第２
の鍔、２０３……装着溝、２０４……仮装着溝、
４０１……環状の厚肉部、４０２……内周面のリ
ブ、４０３……平面のリブ。
Figures 1 to 4 show an embodiment of the negative pressure piston of the constant negative pressure type carburetor of the present invention, Figures 5a, b, and c show the procedure for installing a diaphragm to the negative pressure piston of the embodiment, and Figure 6 Figure 7 shows the conventional configuration of a constant negative pressure type carburetor, and Figure 8 shows the state in which airtightness is maintained even when the diaphragm swells with fuel.
3160 is a diagram showing the configuration of a negative pressure piston and a diaphragm, respectively. Explanation of symbols: 2... Negative pressure piston, 4... Diaphragm, 201... First tsuba, 202... Second
tsuba, 203... mounting groove, 204... temporary mounting groove,
401...Annular thick wall portion, 402...Ribs on inner peripheral surface, 403...Planar ribs.
Claims (1)
ンチユリ３を形成する負圧ピストン２と、該負圧
ピストン２の可変ベンチユリ形成側とは反対側の
端部に固定されたダイアフラム４とを備え、該ダ
イアフラム４の一方の面には大気圧が、他方の面
には前記可変ベンチユリ３部の負圧が導かれる構
成の定負圧式気化器において、前記負圧ピストン
２は前記反対側の端部から、前記負圧ピストン２
が板状のときは板厚、筒状のときは外径よりも大
径の第１の鍔２０１と、前記第１の鍔２０１より
小径の第２の鍔２０２とを順次前記負圧ピストン
２と一体に形成し、前記第１の鍔２０１と前記第
２の鍔２０２との間には前記ダイアフラム４内周
縁の環状厚肉部４０１の装着溝２０３を、前記第
２の鍔２０２に接して前記装着溝２０３と反対側
には前記ダイアフラム４内周縁の前記環状の厚肉
部４０１の仮装着溝２０４を備え、該仮装着溝２
０４の谷径が前記装着溝２０３の谷径よりも小径
である定負圧式気化器の負圧ピストン。 (2) 前記ダイアフラム４内周縁の前記環状の厚
肉部４０１は、該環状の厚肉部４０１を形成する
両平面と内周面の各々に環状のリブ４０２及び４
０３を備えていて、該各々のリブによつて前記環
状の厚肉部４０１と前記装着溝２０３との間の気
密を保つ前記実用新案登録請求の範囲第(1)項記
載の定負圧式気化器の負圧ピストン。[Claims for Utility Model Registration] (1) A negative pressure piston 2 that slidably intersects with the main intake passage 1 to form a variable vent lily 3, and a side of the negative pressure piston 2 opposite to the variable vent lily forming side. A constant negative pressure type carburetor is provided with a diaphragm 4 fixed to an end, and has a configuration in which atmospheric pressure is introduced to one side of the diaphragm 4 and negative pressure of the variable bench lily 3 is introduced to the other side, The negative pressure piston 2 is connected to the negative pressure piston 2 from the opposite end.
When the piston is plate-shaped, the first flange 201 has a larger diameter than the outer diameter, and when it has a cylindrical shape, the second flange 202 has a smaller diameter than the first flange 201. A mounting groove 203 of an annular thick wall portion 401 on the inner peripheral edge of the diaphragm 4 is formed integrally with the first flange 201 and the second flange 202 so as to be in contact with the second flange 202. A temporary attachment groove 204 of the annular thick portion 401 of the inner peripheral edge of the diaphragm 4 is provided on the opposite side to the attachment groove 203 .
A negative pressure piston of a constant negative pressure type carburetor, in which the root diameter of 04 is smaller than the root diameter of the mounting groove 203. (2) The annular thick wall portion 401 on the inner peripheral edge of the diaphragm 4 has annular ribs 402 and 4 on both planes forming the annular thick wall portion 401 and on the inner peripheral surface, respectively.
03, and maintains airtightness between the annular thick-walled portion 401 and the mounting groove 203 by each of the ribs, and maintains airtightness between the annular thick-walled portion 401 and the mounting groove 203. Negative pressure piston of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13088285U JPH0437247Y2 (en) | 1985-08-29 | 1985-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13088285U JPH0437247Y2 (en) | 1985-08-29 | 1985-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6240256U true JPS6240256U (en) | 1987-03-10 |
| JPH0437247Y2 JPH0437247Y2 (en) | 1992-09-02 |
Family
ID=31028808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13088285U Expired JPH0437247Y2 (en) | 1985-08-29 | 1985-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437247Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2998025A1 (en) * | 2012-11-12 | 2014-05-16 | Smc Kk | VALVE |
-
1985
- 1985-08-29 JP JP13088285U patent/JPH0437247Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2998025A1 (en) * | 2012-11-12 | 2014-05-16 | Smc Kk | VALVE |
| KR101492515B1 (en) * | 2012-11-12 | 2015-02-12 | 에스엠씨 가부시키 가이샤 | Valve |
| US9062778B2 (en) | 2012-11-12 | 2015-06-23 | Smc Kabushiki Kaisha | Valve having a diaphragm capable of displacement within a retaining member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437247Y2 (en) | 1992-09-02 |