FR2366473A1 - Systeme hydraulique pour milieux extremement froids - Google Patents
Systeme hydraulique pour milieux extremement froidsInfo
- Publication number
- FR2366473A1 FR2366473A1 FR7726946A FR7726946A FR2366473A1 FR 2366473 A1 FR2366473 A1 FR 2366473A1 FR 7726946 A FR7726946 A FR 7726946A FR 7726946 A FR7726946 A FR 7726946A FR 2366473 A1 FR2366473 A1 FR 2366473A1
- Authority
- FR
- France
- Prior art keywords
- hydraulic system
- extremely cold
- cold environments
- hydraulic cylinder
- hydraulic
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
- B60T13/18—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs with control of pump output delivery, e.g. by distributor valves
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0427—Heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Fluid-Pressure Circuits (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
a. Système hydraulique pour milieux extrêmement froids. b. Il comprend une pompe servant à faire passer du fluide hydraulique d'un réservoir vers un cylindre hydraulique d'un élément récepteur par l'intermédiaire d'un sélecteur de commande disposé à une distance relativement importante du cylindre hydraulique Des passages sont prévus pour permettre un refoulement pratiquement continu du fluide hydraulique entre le sélecteur de commande et le cylindre hydraulique lorsque la pompe fonctionne. c. Application dans les véhicules opérant dans les régions froides.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/729,542 US4059042A (en) | 1976-10-04 | 1976-10-04 | Hydraulic system for extremely cold environments |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2366473A1 true FR2366473A1 (fr) | 1978-04-28 |
Family
ID=24931517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7726946A Pending FR2366473A1 (fr) | 1976-10-04 | 1977-09-06 | Systeme hydraulique pour milieux extremement froids |
Country Status (6)
Country | Link |
---|---|
US (1) | US4059042A (fr) |
JP (1) | JPS5344770A (fr) |
BR (1) | BR7706480A (fr) |
CA (1) | CA1045945A (fr) |
FR (1) | FR2366473A1 (fr) |
GB (1) | GB1531175A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4256350A (en) * | 1979-08-13 | 1981-03-17 | Caterpillar Tractor Co. | Fluid control circuit for brakes and the like |
US4253540A (en) * | 1979-10-29 | 1981-03-03 | Caterpillar Tractor Co. | Steering system for cold environments |
US4354351A (en) * | 1980-09-29 | 1982-10-19 | Caterpillar Tractor Co. | Load sensing steering |
GB2095000B (en) * | 1980-09-29 | 1983-12-14 | Catgerpillar Tractor Co | Fluid viscosity control for actuator circuit |
DE3120278C2 (de) * | 1981-05-21 | 1983-03-24 | Hydromatik Gmbh, 7900 Ulm | "Steuereinrichtung für ein von einer Antriebsmaschine angetriebenes hydrostatisches Getriebe" |
DE3710028A1 (de) * | 1987-03-27 | 1988-10-06 | Delmag Maschinenfabrik | Druckmittelbetriebene antriebseinrichtung |
WO1995011823A2 (fr) * | 1993-10-29 | 1995-05-04 | Grau Limited | Systeme de freinage pour un vehicule |
US5456078A (en) * | 1994-08-12 | 1995-10-10 | Caterpillar Inc. | Method of purging a hydraulic system |
AT401964B (de) * | 1995-04-26 | 1997-01-27 | Steyr Daimler Puch Ag | Hydraulischer aktuator und damit ausgestattete kupplung |
US5682743A (en) * | 1996-03-05 | 1997-11-04 | Iri International Corporation | Hydraulic fluid-conducting circuit containing flow-through cylinders |
US6357560B1 (en) * | 2000-03-21 | 2002-03-19 | Ford Global Tech., Inc. | Servo assembly for operating a brake band in an automatic transmission vehicle |
US7607285B2 (en) * | 2003-08-01 | 2009-10-27 | Honeywell International Inc. | Four mode thermal recirculation throttle valve |
DE102017004531A1 (de) | 2017-05-11 | 2018-11-15 | Hydac Systems & Services Gmbh | Ventil |
US10562505B2 (en) * | 2017-12-11 | 2020-02-18 | Cnh Industrial America Llc | Hydraulic warm-up system running off parking brake |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB503842A (en) * | 1937-10-11 | 1939-04-11 | India Rubber Gutta Percha Tele | Improvements in or relating to hydraulic power apparatus |
GB689688A (en) * | 1949-09-14 | 1953-04-01 | British Messier Ltd | Improvements in or relating to hydraulic power systems |
US2992046A (en) * | 1957-12-03 | 1961-07-11 | Dunlop Rubber Co | Fluid pressure control valve mechanism |
US3727986A (en) * | 1971-12-22 | 1973-04-17 | Gen Motors Corp | Direct apply brake system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688313A (en) * | 1950-03-21 | 1954-09-07 | Us Navy | Fluid pressure reciprocating motor and control valve apparatus |
US3465842A (en) * | 1967-12-29 | 1969-09-09 | Bendix Corp | Power steering mechanism |
GB1369742A (en) * | 1971-05-25 | 1974-10-09 | Bendix Gmbh | Power boost mechanism |
US3815697A (en) * | 1972-09-01 | 1974-06-11 | Caterpillar Tractor Co | Steering clutch and brake control system |
-
1976
- 1976-10-04 US US05/729,542 patent/US4059042A/en not_active Expired - Lifetime
-
1977
- 1977-05-09 GB GB19335/77A patent/GB1531175A/en not_active Expired
- 1977-06-16 CA CA280,662A patent/CA1045945A/fr not_active Expired
- 1977-06-28 JP JP7708577A patent/JPS5344770A/ja active Pending
- 1977-09-06 FR FR7726946A patent/FR2366473A1/fr active Pending
- 1977-09-28 BR BR7706480A patent/BR7706480A/pt unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB503842A (en) * | 1937-10-11 | 1939-04-11 | India Rubber Gutta Percha Tele | Improvements in or relating to hydraulic power apparatus |
GB689688A (en) * | 1949-09-14 | 1953-04-01 | British Messier Ltd | Improvements in or relating to hydraulic power systems |
US2992046A (en) * | 1957-12-03 | 1961-07-11 | Dunlop Rubber Co | Fluid pressure control valve mechanism |
US3727986A (en) * | 1971-12-22 | 1973-04-17 | Gen Motors Corp | Direct apply brake system |
Also Published As
Publication number | Publication date |
---|---|
JPS5344770A (en) | 1978-04-21 |
GB1531175A (en) | 1978-11-01 |
CA1045945A (fr) | 1979-01-09 |
BR7706480A (pt) | 1978-04-18 |
US4059042A (en) | 1977-11-22 |
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