JPH048778U - - Google Patents
Info
- Publication number
- JPH048778U JPH048778U JP4930890U JP4930890U JPH048778U JP H048778 U JPH048778 U JP H048778U JP 4930890 U JP4930890 U JP 4930890U JP 4930890 U JP4930890 U JP 4930890U JP H048778 U JPH048778 U JP H048778U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- rod seat
- negative pressure
- electric
- pressure pump
- 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
Landscapes
- Details Of Reciprocating Pumps (AREA)
Description
第１図はこの考案の一実施例による電動式負圧
ポンプアクチエータの通気口の形状を示す断面図
、第２図は従来の電動式負圧ポンプアクチエータ
の全体構造を示す断面図、第３図は従来の電動式
負圧ポンプアクチエータの通気口の形状を示す断
面図である。
図中、１は電動式モータ、１ａは出力軸、２は
偏心カム、３はロツドアシー、４はダイアフラム
、５はハウジング、５ａはハウジングの吸気口、
５ｂは負圧通路、５ｄは大気室、６はカバー、７
は気密室、８は気密室の吸気口、８ａは吸気バル
ブ、９は気密室の排気口、９ａは排気バルブ、１
５はフイルタ、１６はラバーキヤツプ、２０は電
磁弁、５０ｃはハウジングの通気口である。なお
、図中同一符号は同一又は相当部分を示す。
FIG. 1 is a sectional view showing the shape of the vent of an electric negative pressure pump actuator according to an embodiment of the invention, FIG. 2 is a sectional view showing the overall structure of a conventional electric negative pressure pump actuator, and FIG. FIG. 3 is a sectional view showing the shape of a vent in a conventional electric negative pressure pump actuator. In the figure, 1 is an electric motor, 1a is an output shaft, 2 is an eccentric cam, 3 is a rod seat, 4 is a diaphragm, 5 is a housing, 5a is an intake port of the housing,
5b is a negative pressure passage, 5d is an atmospheric chamber, 6 is a cover, 7
is an airtight chamber, 8 is an intake port of the airtight chamber, 8a is an intake valve, 9 is an exhaust port of the airtight chamber, 9a is an exhaust valve, 1
5 is a filter, 16 is a rubber cap, 20 is a solenoid valve, and 50c is a housing vent. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
ンプの出力軸に装着された偏心カム、この偏心カ
ムの回動により往復動するロツドアシー、このロ
ツドアシーとハウジング間に装着されたダイアフ
ラム、前記ロツドアシー、ハウジング及びダイア
フラムにより囲まれた気密室、この気密室に空気
を吸入し排気する役割を果す吸気口及び排気口、
大気に保たれる大気室、及びこの大気室につなが
る長方形状の通気口を備えた電動式負圧ポンプア
クチエータにおいて、 前記ハウジングの通気口の断面形状について、
少なくともその長辺を膨らませるか又は全体を楕
円形状としたことを特徴とする電動式負圧ポンプ
アクチエータ。[Scope of Claim for Utility Model Registration] Inside the housing, there is an electric pump, an eccentric cam attached to the output shaft of the electric pump, a rod seat that reciprocates as the eccentric cam rotates, and a rod seat installed between the rod seat and the housing. an airtight chamber surrounded by the rod seat, the housing, and the diaphragm; an intake port and an exhaust port that serve to intake and exhaust air into the airtight chamber;
In an electric negative pressure pump actuator equipped with an atmospheric chamber kept at the atmosphere and a rectangular vent connected to the atmospheric chamber, regarding the cross-sectional shape of the vent of the housing,
An electric negative pressure pump actuator characterized in that at least its long sides are inflated or the whole is elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4930890U JPH048778U (en) | 1990-05-11 | 1990-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4930890U JPH048778U (en) | 1990-05-11 | 1990-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048778U true JPH048778U (en) | 1992-01-27 |
Family
ID=31566881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4930890U Pending JPH048778U (en) | 1990-05-11 | 1990-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048778U (en) |
-
1990
- 1990-05-11 JP JP4930890U patent/JPH048778U/ja active Pending
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