GB2489331A - Hydraulic circuit breaker - Google Patents
Hydraulic circuit breaker Download PDFInfo
- Publication number
- GB2489331A GB2489331A GB201205317A GB201205317A GB2489331A GB 2489331 A GB2489331 A GB 2489331A GB 201205317 A GB201205317 A GB 201205317A GB 201205317 A GB201205317 A GB 201205317A GB 2489331 A GB2489331 A GB 2489331A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydraulic system
- piston
- cylinder
- hydraulic
- parts
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
Abstract
A hydraulic system is separated into two parts, by way of a piston 5 inside a cylinder 4, creating a primary 1 and a secondary circuit 2. The primary circuit 1 controls the secondary circuit 2, but if one or more parts of the secondary circuit 2 fails or leaks (See figure 4) then the piston 5 will isolate the secondary circuit 2 so that the primary circuit 1 will continue to work normally. The cylinder 4 may have an inspection window so that the position of the piston 5 can be easily inspected.
Description
Hydraulic Safety Stop This invention relates to stopping hydraulic leaks.
Hydraulic systems are used in vehicles and machines to provide control and power by the use of pressurised fluid.
If there is a break in one part of the hydraulic system, this would result in loss of pressure, the pressurised hydraulic fluid would be forced out of the breach and the loss of pressure would prevent the system from working and there would be a big loss of fluid.
To overcome this, the present invention proposes a hydraulic system incorporating a piston within a cylinder, that will work as normal, but if there is a break in the hydraulic system, the rest of the hydraulic system will still function.
The present invention separates the hydraulic system into two parts, primary and secondary, of which there could be any number primary and secondary parts.
The primary controls the secondary, but if one or more parts of the secondary fail the remaining parts will * * continue to work normally.
* *.*** * * The pressure of the hydraulic system ensures the leak is sealed securely.
With the present invention, in normal use a piston moves back and forth within a cylinder to allow movement of the * hydraulic fluid, the piston being used to separate the primary side of the hydraulic fluid from the secondary.
if a break appears in the secondary part of the hydraulic system the pressure will push the piston to the end of the cylinder and therefore prevent any further loss of hydraulic fluid and loss of function of the remaining hydraulic system.
The present invention uses a piston inside a cylinder, incorporated in the hydraulic system between the hydraulic pump and operating parts of the hydraulic system.
The use of these cylinders with the pistons will keep the hydraulic system working even if one or more of the hydraulic parts have failed.
The present invention will provide protection from accidental or malicious damage to the hydraulic system.
The cylinder could be fitted with an inspection window so the position of the piston could be seen, to see if there may be a problem with the hydraulic system, this would pinpoint which part of the hydraulic system has a leak.
An example of the invention will now be described by referring to the accompanying drawings. S. S
:.:: Figure 1 shows an example of a hydraulic system, where * the pump I pushes the hydraulic fluid into the cylinder 2, which pushed the ram. upwards.
Figure 2 shows the present invention when fitted to a *:::: hydraulic system, where the piston 5 is contained within the cylinder 4.
Figure 3 shows the present invention when the hydraulic system is operated, the force of the pump I pushes the hydraulic fluid to the cylinder 2 via the piston 5.
Figure 4 shows the present invention when a break has happened in the hydraulic system, the pressure of the system pushes the piston 5 to the end of the cylinder 4, preventing any further loss of pressure and fluid. * * * * *
* ***** * S * fl
S *5*S S... * S S S. S
S
S S
Claims (2)
- Claims 1. A hydraulic system where a piston inside a cylinder is used to separate one part of a hydraulic system from another.
- 2. A hydraulic system as in claim I where the cylinders each have an inspection window to see the position of the piston inside. * S * * **S* U.... * S *...S 4SS U... * U U *5 *SS..... a aSAmendments to the claims have been flied as follows: Claims 1. A hydraulic system where a piston inside a cylinder is used to separate one part of a hydraulic system from another.2. A hydraulic system as in claim I where the cylinders each have an inspection window to see the position of the piston inside. 0 S * * * 4*0e0*0* * * * * S * * * S* *. C fl*4 C, * * *;
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201104916A GB201104916D0 (en) | 2011-03-24 | 2011-03-24 | Hydraulic fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201205317D0 GB201205317D0 (en) | 2012-05-09 |
| GB2489331A true GB2489331A (en) | 2012-09-26 |
Family
ID=44013053
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB201104916A Ceased GB201104916D0 (en) | 2011-03-24 | 2011-03-24 | Hydraulic fuse |
| GB201205317A Withdrawn GB2489331A (en) | 2011-03-24 | 2012-03-23 | Hydraulic circuit breaker |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB201104916A Ceased GB201104916D0 (en) | 2011-03-24 | 2011-03-24 | Hydraulic fuse |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB201104916D0 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400863A (en) * | 1971-10-02 | 1975-07-16 | Bosch Gmbh Robert | Two-circuit braking systems |
| DE3638037A1 (en) * | 1985-11-08 | 1987-05-14 | Smedby Mekaniska Verkstad Ab | Safety arrangement for hydraulic systems |
| FR2614668A1 (en) * | 1987-04-28 | 1988-11-04 | Bendix France | Safety valve for a hydraulic installation |
| FR2729720A1 (en) * | 1995-01-24 | 1996-07-26 | Desvigne Claude Jean | Safety valve for hydraulic power cylinder |
| US20090242705A1 (en) * | 2008-01-07 | 2009-10-01 | Airbus France | Hydraulic system protected from external impacts |
-
2011
- 2011-03-24 GB GB201104916A patent/GB201104916D0/en not_active Ceased
-
2012
- 2012-03-23 GB GB201205317A patent/GB2489331A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400863A (en) * | 1971-10-02 | 1975-07-16 | Bosch Gmbh Robert | Two-circuit braking systems |
| DE3638037A1 (en) * | 1985-11-08 | 1987-05-14 | Smedby Mekaniska Verkstad Ab | Safety arrangement for hydraulic systems |
| FR2614668A1 (en) * | 1987-04-28 | 1988-11-04 | Bendix France | Safety valve for a hydraulic installation |
| FR2729720A1 (en) * | 1995-01-24 | 1996-07-26 | Desvigne Claude Jean | Safety valve for hydraulic power cylinder |
| US20090242705A1 (en) * | 2008-01-07 | 2009-10-01 | Airbus France | Hydraulic system protected from external impacts |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201104916D0 (en) | 2011-05-04 |
| GB201205317D0 (en) | 2012-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |