JPS55114652A - Hydraulic pressure booster - Google Patents

Hydraulic pressure booster

Info

Publication number
JPS55114652A
JPS55114652A JP2070579A JP2070579A JPS55114652A JP S55114652 A JPS55114652 A JP S55114652A JP 2070579 A JP2070579 A JP 2070579A JP 2070579 A JP2070579 A JP 2070579A JP S55114652 A JPS55114652 A JP S55114652A
Authority
JP
Japan
Prior art keywords
piston
hydraulic fluid
slit
flow
steering
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
Application number
JP2070579A
Other languages
Japanese (ja)
Inventor
Yasufumi Ideta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP2070579A priority Critical patent/JPS55114652A/en
Publication of JPS55114652A publication Critical patent/JPS55114652A/en
Pending legal-status Critical Current

Links

Landscapes

  • Braking Systems And Boosters (AREA)

Abstract

PURPOSE: To suppress noise occurrence through avoiding a sudden throttle and also to secure a necessary quantity of hydraulic fluid by throttling a flow of the hydraulic fluid fed to a power steering with two orifices in two steps.
CONSTITUTION: A power piston 29 is fitted slidably in the interior of a booster body 28, an opening on one end is closed with an end cover 30, and a operating rod 31 is fitted slidably and fluid-tightly with O ring 32 in an opening on the other end. A slit 4 is provided peripherally on the end of boosting chamber 45 side of the piston 29, the slit 4 is put through to a slot 29e through the first orifice 2 and also to a slot 29f through the second orifice. A flow of the hydraulic fluid fed to a steering 18 is throttled with the orifices 2, 5 in the two steps, and the hydraulic fluid is allowed to flow to the steering 18 by way of the slit 4 on the piston 29, therefore the piston 29 can be supported floatably to the body 28. A sliding motion of the piston 29 can be smoothed consequently.
COPYRIGHT: (C)1980,JPO&Japio
JP2070579A 1979-02-26 1979-02-26 Hydraulic pressure booster Pending JPS55114652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2070579A JPS55114652A (en) 1979-02-26 1979-02-26 Hydraulic pressure booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2070579A JPS55114652A (en) 1979-02-26 1979-02-26 Hydraulic pressure booster

Publications (1)

Publication Number Publication Date
JPS55114652A true JPS55114652A (en) 1980-09-04

Family

ID=12034553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2070579A Pending JPS55114652A (en) 1979-02-26 1979-02-26 Hydraulic pressure booster

Country Status (1)

Country Link
JP (1) JPS55114652A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002226163A (en) * 2001-01-23 2002-08-14 Otis Elevator Co Fire door at elevator landing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002226163A (en) * 2001-01-23 2002-08-14 Otis Elevator Co Fire door at elevator landing

Similar Documents

Publication Publication Date Title
JPS57154503A (en) Pressurized fluid feeder
ES470827A1 (en) Pressure control valve
GB1530439A (en) Variable compression ratio piston
ES475399A1 (en) Hydraulic system with an open centre valve and a power assisted steering gear incorporating the system.
JPS55114652A (en) Hydraulic pressure booster
ES450867A1 (en) Power steering device
CA2014031A1 (en) Pressure-medium-operated valve
DE69907730D1 (en) HYDRAULIC WAY VALVE
JPS5673206A (en) Pneumatic cylinder equipped with shock absorber
JPS57177476A (en) Linear solenoid valve
SE7710598L (en) MAGNETIC VALVE
JPS5578833A (en) Damping valve construction for shock absorber
GB945265A (en) Mechanical seal with controlled leakage
US3824033A (en) Hydraulic turbine nozzle
JPS54105664A (en) Hydraulic cylinder with flow rate control valve
ES343811A1 (en) Self-Damped Calender Roll.
JPS5540356A (en) Flow rate control valve for high differential pressure
JPS55135211A (en) Air-bleeder for hydraulic cylinder
JPS52138704A (en) Fluid pump
JPS5652574A (en) Multistage hydraulic machine
FR2323068A1 (en) Controllable hydraulic shock absorber - has hollow cylindrical actuator shaft which varies fluid flow to and from piston cavity
FR2415733A1 (en) Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice
JPS5631566A (en) Method of controlling liquid flow in hydraulic unit
FR2414959A1 (en) Spray nozzle with atomiser - has sliding spiral assembly thrust against head to form small constant-volume chamber
RU1789820C (en) Controllable throttle