JPS63151967U - - Google Patents
Info
- Publication number
- JPS63151967U JPS63151967U JP4442887U JP4442887U JPS63151967U JP S63151967 U JPS63151967 U JP S63151967U JP 4442887 U JP4442887 U JP 4442887U JP 4442887 U JP4442887 U JP 4442887U JP S63151967 U JPS63151967 U JP S63151967U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- fuel injection
- injection pump
- distribution type
- type fuel
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims 1
- 229910010271 silicon carbide Inorganic materials 0.000 claims 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の分配型燃料噴射ポンプに用
いられるローラ部分の実施例を示す断面図、第２
図は同上の分配型燃料噴射ポンプの部分断面図、
第３図は従来のローラ部分の実施例を示す断面図
である。
１３……ローラ、１４……ローラピン、１５…
…ローラブツシユ、１７……セラミツク層。
Fig. 1 is a sectional view showing an embodiment of the roller portion used in the distribution type fuel injection pump of this invention;
The figure is a partial cross-sectional view of the same distribution type fuel injection pump as above.
FIG. 3 is a sectional view showing an example of a conventional roller portion. 13...Roller, 14...Roller pin, 15...
...roller brush, 17...ceramic layer.
Claims (1)
に対応したカム面が形成されたカムデイスクと、
このカムデイスクに対向して設けられたローラホ
ルダと、このローラホルダに保持され且つ前記カ
ムデイスクのカム面に摺接するローラとを具備し
、前記カムデイスクに結合した駆動軸の回転に伴
い前記プランジヤが前記カム面に従つて往復動し
つつ回転し、燃料を各気筒に分配して圧送するよ
うにした分配型燃料噴射ポンプにおいて、前記ロ
ーラを前記ローラホルダに両端が軸支されたロー
ラピンに回動自在に挿入すると共に、前記ローラ
ピンと前記ローラとの間にローラブツシユを介在
せしめ、このローラブツシユは金属部材の表面を
セラミツクコーテイングして成ることを特徴とす
る分配型燃料噴射ポンプ。 ２ セラミツクは炭化珪素であることを特徴とす
る実用新案登録請求の範囲第１項記載の分配型燃
料噴射ポンプ。 ３ セラミツクは窒化珪素であることを特徴とす
る実用新案登録請求の範囲第１項記載の分配型燃
料噴射ポンプ。[Scope of Claim for Utility Model Registration] 1. A cam disk with one end of a plunger fixed and a cam surface corresponding to the number of cylinders of the engine formed;
The plunger includes a roller holder provided opposite to the cam disk, and a roller held by the roller holder and in sliding contact with the cam surface of the cam disk. In the distribution type fuel injection pump, the roller rotates while reciprocating along the cam surface to distribute and pressure feed fuel to each cylinder, and the roller is rotated by a roller pin whose both ends are pivotally supported by the roller holder. A distribution type fuel injection pump characterized in that the roller bushing is movably inserted and interposed between the roller pin and the roller, and the roller bushing is made of a metal member whose surface is coated with ceramic. 2. The distribution type fuel injection pump according to claim 1, wherein the ceramic is silicon carbide. 3. The distribution type fuel injection pump according to claim 1, wherein the ceramic is silicon nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4442887U JPS63151967U (en) | 1987-03-26 | 1987-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4442887U JPS63151967U (en) | 1987-03-26 | 1987-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63151967U true JPS63151967U (en) | 1988-10-05 |
Family
ID=30862229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4442887U Pending JPS63151967U (en) | 1987-03-26 | 1987-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63151967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823551A2 (en) | 1996-08-08 | 1998-02-11 | Toyota Jidosha Kabushiki Kaisha | Roller bush for fuel injection pump |
-
1987
- 1987-03-26 JP JP4442887U patent/JPS63151967U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823551A2 (en) | 1996-08-08 | 1998-02-11 | Toyota Jidosha Kabushiki Kaisha | Roller bush for fuel injection pump |
| EP0823551A3 (en) * | 1996-08-08 | 1998-09-02 | Toyota Jidosha Kabushiki Kaisha | Roller bush for fuel injection pump |
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