JPS5642736A - Hydraulic pressure shock absorber for vehicle - Google Patents
Hydraulic pressure shock absorber for vehicleInfo
- Publication number
- JPS5642736A JPS5642736A JP11759879A JP11759879A JPS5642736A JP S5642736 A JPS5642736 A JP S5642736A JP 11759879 A JP11759879 A JP 11759879A JP 11759879 A JP11759879 A JP 11759879A JP S5642736 A JPS5642736 A JP S5642736A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pressure
- force
- chamber
- orifice
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
PURPOSE:To produce an effective attenuation force which is controlled by an orifice by increasing a preset force of a slide valve and by increasing differential presures between the upper and lower chambers of a piston. CONSTITUTION:A control rod 19 is actuated to move vertically by a control unit. A spring bearing 29, which is contact to the bottom of the piston rod 11, controls the upperward movement of the control rod 19. The downward movement of a piston 10 in an inner cylinder 2 increases the pressure of a lower chamber B. In- creased differential pressure between the upper and lower chambers A and B are obtained due to a high preset force of a slide valve 13 and thus reduces the pressure of the upper chamber A to a greater extent. The oil in the lower chamber B of the piston flows to an clearance F between a taperd portion 25 and a projected portion 28 through passages D and E and then reaches a passage G and flows into the upper chamber A through passages 23 and 24. In this process, the clearance F between the tapered portion 25 of a slider 21 and the projected portion 28 functions as an orifice to control flow rates and thereby obtains attenuation force in the compression stroke.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11759879A JPS5642736A (en) | 1979-09-13 | 1979-09-13 | Hydraulic pressure shock absorber for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11759879A JPS5642736A (en) | 1979-09-13 | 1979-09-13 | Hydraulic pressure shock absorber for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642736A true JPS5642736A (en) | 1981-04-21 |
Family
ID=14715760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11759879A Pending JPS5642736A (en) | 1979-09-13 | 1979-09-13 | Hydraulic pressure shock absorber for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642736A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5293970A (en) * | 1991-03-09 | 1994-03-15 | Robert Bosch Gmbh | Cylinder including a control valve between separate work chambers |
-
1979
- 1979-09-13 JP JP11759879A patent/JPS5642736A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5293970A (en) * | 1991-03-09 | 1994-03-15 | Robert Bosch Gmbh | Cylinder including a control valve between separate work chambers |
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