JP2005155610A5 - - Google Patents

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Publication number
JP2005155610A5
JP2005155610A5 JP2004286681A JP2004286681A JP2005155610A5 JP 2005155610 A5 JP2005155610 A5 JP 2005155610A5 JP 2004286681 A JP2004286681 A JP 2004286681A JP 2004286681 A JP2004286681 A JP 2004286681A JP 2005155610 A5 JP2005155610 A5 JP 2005155610A5
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JP
Japan
Prior art keywords
negative pressure
pressure supply
suction port
supply device
vacuum pump
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Application number
JP2004286681A
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Japanese (ja)
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JP4385257B2 (en
JP2005155610A (en
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Priority to JP2004286681A priority Critical patent/JP4385257B2/en
Priority claimed from JP2004286681A external-priority patent/JP4385257B2/en
Publication of JP2005155610A publication Critical patent/JP2005155610A/en
Publication of JP2005155610A5 publication Critical patent/JP2005155610A5/ja
Application granted granted Critical
Publication of JP4385257B2 publication Critical patent/JP4385257B2/en
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Claims (5)

ノズルの下流側にディフューザを配置して、これらの間に吸引口を開口させたエジェクタを有し、前記ディフューザの出口に真空ポンプの吸込口を接続し、前記エジェクタの吸引口から負圧を供給することを特徴とする負圧供給装置。 A diffuser is arranged on the downstream side of the nozzle, and an ejector with a suction port opened between them is connected. A suction port of a vacuum pump is connected to the outlet of the diffuser, and negative pressure is supplied from the suction port of the ejector. A negative pressure supply device characterized by: 前記吸引口及び前記真空ポンプの吸込口をそれぞれ逆止弁を介して負圧供給口に接続し、前記吸引口及び前記吸込口のうち、真空度の高いほうの負圧を前記負圧供給口から供給することを特徴とする請求項１に記載の負圧供給装置。 The suction port and the suction port of the vacuum pump are respectively connected to a negative pressure supply port via a check valve, and the negative pressure of the higher vacuum degree of the suction port and the suction port is connected to the negative pressure supply port. The negative pressure supply device according to claim 1, wherein the negative pressure supply device is supplied from a first pressure source. 前記真空ポンプは、リニアアクチュエータによって駆動されるピストンを有する往復動ポンプであることを特徴とする請求項１または２に記載の負圧供給装置。 The negative pressure supply device according to claim 1, wherein the vacuum pump is a reciprocating pump having a piston driven by a linear actuator. 前記真空ポンプの吐出側をエンジン吸気管に接続したことを特徴とする請求項１乃至３のいずれかに記載の負圧供給装置。 4. The negative pressure supply device according to claim 1, wherein a discharge side of the vacuum pump is connected to an engine intake pipe. 前記真空ポンプの吐出側を大気に開放する第３逆止弁を設けたことを特徴とする請求項４に記載の負圧供給装置。 The negative pressure supply device according to claim 4 , further comprising a third check valve that opens the discharge side of the vacuum pump to the atmosphere .
JP2004286681A 2003-10-31 2004-09-30 Negative pressure supply device Active JP4385257B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004286681A JP4385257B2 (en) 2003-10-31 2004-09-30 Negative pressure supply device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003373259 2003-10-31
JP2004286681A JP4385257B2 (en) 2003-10-31 2004-09-30 Negative pressure supply device

Publications (3)

Publication Number Publication Date
JP2005155610A JP2005155610A (en) 2005-06-16
JP2005155610A5 true JP2005155610A5 (en) 2007-02-01
JP4385257B2 JP4385257B2 (en) 2009-12-16

Family

ID=34741308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004286681A Active JP4385257B2 (en) 2003-10-31 2004-09-30 Negative pressure supply device

Country Status (1)

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JP (1) JP4385257B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007223449A (en) * 2006-02-23 2007-09-06 Advics:Kk Vehicular brake device
JP4187000B2 (en) * 2006-04-07 2008-11-26 トヨタ自動車株式会社 Ejector system for vehicle and control device
JP2014084052A (en) 2012-10-26 2014-05-12 Aisan Ind Co Ltd Negative pressure supply unit
DE102013218089A1 (en) * 2012-12-06 2014-06-12 Robert Bosch Gmbh Arrangement for controlling a medium

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