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US3896740A Expired / Lapsed US ⏱️ 0.0 years remaining

Pneumatic bogie stabilizer

Assignee: Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
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Filing: 1973-12-27
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Granted: 1975-07-29
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Expires: 1993-12-27
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Abstract

Abstract The car and body are provided therebetween with a force transmitting means which imposes a coupling moment on the bogie to compensate for a moment induced by bucking and the like, for example at starting of the vehicle. The force transmitting means uses pairs of vertically disposed pneumatic spring bellows between the bogie and body with opposite bellows being interconnected in a cross-wise pattern. The force transmitting means can also be in the form of double-acting actuators which have their respective pressure chambers connected in cross-wise manner.

Inventors

  • 👤 Ernst Florian Kreissig

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 01:06
CPC Classifications
B; B60; B60G; B60G99/00; B60G21/00; B60G21/02; B60G21/06; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/10; B61F5/22; B61F5/24; B61F5/245; B61F5/26; B61F5/30; B61F5/36

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 150 words
In combination with a vehicle body and a bogie supporting said vehicle body thereon; an axle load compensator comprising a pair of force trAnsmitting means for imposing a coupling moment on said bogie, one of said means being disposed on one side of said bogie relative to a vertical plane through said bogie and the other of said means being disposed on an opposite side of said bogie, each said means including a pair of opposed pressure elements disposed in vertical relation to each other; and a pair of connecting lines, each said line communicating an upper pressure element of one force transmitting means with a lower pressure element of the other force transmitting means whereby pressure medium in one force transmitting means is transmitted to the other to impart an upwardly directed compensating force in said other force transmitting means to oppose a bucking torque imposed on said bogie.
Claim 2
Dependent Claim 150 words
In combination with a vehicle body and a bogie supporting said vehicle body thereon; an axle load compensator comprising a pair of force trAnsmitting means for imposing a coupling moment on said bogie, one of said means being disposed on one side of said bogie relative to a vertical plane through said bogie and the other of said means being disposed on an opposite side of said bogie, each said means including a pair of opposed pressure elements disposed in vertical relation to each other; and a pair of connecting lines, each said line communicating an upper pressure element of one force transmitting means with a lower pressure element of the other force transmitting means whereby pressure medium in one force transmitting means is transmitted to the other to impart an upwardly directed compensating force in said other force transmitting means to oppose a bucking torque imposed on said bogie.
Claim 3
Dependent Claim 97 words
The combination as set forth in claim 1 wherein said connecting lines are conduits and said pressure elements are responsive to a flow of pressure medium and which further comprises a means for supplying pressure medium and a control element positioned between said pressure medium supply means and said lines to selectively connect one of said lines with said pressure medium supply means whereby pressure medium is conveyed to a selective pair of pressure elements to impart two equal and opposite forces on said bogie at said opposite sides to produce a coupling moment on said bogie.
Claim 4
Dependent Claim 23 words
The combination as set forth in claim 2 which further includes a throttle in each of said lines downstream of said control element.
Claim 5
Dependent Claim 52 words
The combination as set forth in claim 2 which further includes a wheel frame movably mounted on said bogie and an adjusting means connected to said control element to selectively connect said pressure medium supply means to said lines in response to a vertical movement between said bogie and said wheel frame.
Claim 6
Dependent Claim 40 words
The combination as set forth in claim 2 which further comprises a flow control means between said pressure medium supply means and said control element for controlling the pressure of the pressure medium delivered to said control element and lines.
Claim 7
Dependent Claim 36 words
The combination as set forth in claim 5 wherein said flow control means includes an adjusting device adapted to be controlled in dependence on a tractive effort to be transmitted between said body and said bogie.
Claim 8
Dependent Claim 58 words
The combination as set forth in claim 1 wherein each force transmitting means includes a double-acting pressure cylinder and a piston reciprocally mounted therein to divide said cylinder into two vertically disposed pressure chambers wherein said piston and each portion of said cylinder defining a respective one of said chambers defines a respective one of said pressure elements.
Claim 9
Dependent Claim 34 words
The combination as set forth in claim 1 wherein each said pressure element is a pneumatic spring bellows disposed between a bearing surface on said vehicle body and a bearing surface on said bogie.
Claim 10
Dependent Claim 174 words
In combination with a vehicle body and a bogie supporting said vehicle body thereon; an axle load compensator comprising a pair of force transmitting means for imposing a coupling moment on said bogie, one of said means being disposed on one end of said bogie and the other of said means being disposed on an opposite end of said bogie, each said means including a pair of opposed pheumatic spring bellows disposed in vertical relation to each other; a pair of connecting lines, each said line communicating an upper spring bellows of one force transmitting means with a lower spring bellows of the other force transmitting means; a means for supplying pressure medium; and a control element positioned between said pressure medium supply means and said lines to selectively connect one of said lines with said pressure medium supply means whereby pressure medium is conveyed to a selective pair of spring bellows to impart two equal and opposite forces on said bogie at said opposite sides to produce a coupling moment on said bogie.
Claim 11
Dependent Claim 174 words
In combination with a vehicle body and a bogie supporting said vehicle body thereon; an axle load compensator comprising a pair of force transmitting means for imposing a coupling moment on said bogie, one of said means being disposed on one end of said bogie and the other of said means being disposed on an opposite end of said bogie, each said means including a pair of opposed pheumatic spring bellows disposed in vertical relation to each other; a pair of connecting lines, each said line communicating an upper spring bellows of one force transmitting means with a lower spring bellows of the other force transmitting means; a means for supplying pressure medium; and a control element positioned between said pressure medium supply means and said lines to selectively connect one of said lines with said pressure medium supply means whereby pressure medium is conveyed to a selective pair of spring bellows to impart two equal and opposite forces on said bogie at said opposite sides to produce a coupling moment on said bogie.
Claim 12
Dependent Claim 183 words
In combination with a vehicle body and a bogie supporting said vehicle body thereOn; an axle load compensator comprising a pair of force transmitting means for imposing a coupling moment on said bogie, one of said means being disposed on one side of said bogie relative to a vertical plane through said bogie and the other of said means being disposed on an opposite side of said bogie, each said means including a cylinder having a reciprocally mounted piston therein dividing said cylinder into a pair of vertically disposed chambers; a pair of connecting lines, each said line communicating an upper chamber of one force transmitting means with a lower chamber of the other force transmitting means; a means for supplying pressure medium; and a control element positioned between said pressure medium supply means and said lines to selectively connect one of said lines with said pressure medium supply means whereby pressure medium is conveyed to a selective pair of cylinders to impart two equal and opposite forces on said bogie at said opposite sides to produce a coupling moment on said bogie.
Claim 13
Dependent Claim 183 words
In combination with a vehicle body and a bogie supporting said vehicle body thereOn; an axle load compensator comprising a pair of force transmitting means for imposing a coupling moment on said bogie, one of said means being disposed on one side of said bogie relative to a vertical plane through said bogie and the other of said means being disposed on an opposite side of said bogie, each said means including a cylinder having a reciprocally mounted piston therein dividing said cylinder into a pair of vertically disposed chambers; a pair of connecting lines, each said line communicating an upper chamber of one force transmitting means with a lower chamber of the other force transmitting means; a means for supplying pressure medium; and a control element positioned between said pressure medium supply means and said lines to selectively connect one of said lines with said pressure medium supply means whereby pressure medium is conveyed to a selective pair of cylinders to impart two equal and opposite forces on said bogie at said opposite sides to produce a coupling moment on said bogie.

References Cited (Backward Citations)

US3612506A Cited
US3614931A Cited
US3734030A Cited
US3717104A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-28 1979-01-27 1979-07-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-28 1983-01-27 1983-07-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-28 1987-01-27 1987-07-29 $7700.00 Window Closed / Lapsed

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