IT991260B - Impianto idraulico a portata variabile con circuito per flusso di raffreddamento - Google Patents

Impianto idraulico a portata variabile con circuito per flusso di raffreddamento

Info

Publication number: IT991260B
Authority: IT; Italy
Prior art keywords: hydraulic system; variable; circuit; cooling; flow
Prior art date: 1972-07-13

Application number

IT26537/73A

Other languages

English (en)

Original Assignee

Borg Warner

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.)

1972-07-13

Filing date

1973-07-12

Publication date

1975-07-30

1973-07-12 Application filed by Borg Warner filed Critical Borg Warner

1975-07-30 Application granted granted Critical

1975-07-30 Publication of IT991260B publication Critical patent/IT991260B/it

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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4165—Control of cooling or lubricating
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- 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
- 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
- F15B21/0423—Cooling
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
- F16H61/433—Pump capacity control by fluid pressure control means
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
- F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
- F15B2211/3127—Floating position connecting the working ports and the return line
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6052—Load sensing circuits having valve means between output member and the load sensing circuit using check 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/66—Temperature control methods
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary output members
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S60/00—Power plants
- Y10S60/912—Cooling means

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Fluid-Pressure Circuits (AREA)
Reciprocating Pumps (AREA)
Control Of Fluid Gearings (AREA)

IT26537/73A 1972-07-13 1973-07-12 Impianto idraulico a portata variabile con circuito per flusso di raffreddamento IT991260B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US27130172A	1972-07-13	1972-07-13

Publications (1)

Publication Number	Publication Date
IT991260B true IT991260B (it)	1975-07-30

Family

ID=23035005

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT26537/73A IT991260B (it)	1972-07-13	1973-07-12	Impianto idraulico a portata variabile con circuito per flusso di raffreddamento

Country Status (13)

Country	Link
US (1)	US3800536A (it)
JP (1)	JPS4944176A (it)
AR (1)	AR206684A1 (it)
AU (1)	AU469670B2 (it)
BE (1)	BE802102A (it)
BR (1)	BR7305244D0 (it)
CA (1)	CA978055A (it)
FR (1)	FR2193155B1 (it)
GB (1)	GB1389386A (it)
IT (1)	IT991260B (it)
NL (1)	NL7309783A (it)
SE (1)	SE7309691L (it)
ZA (1)	ZA734327B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19640103C2 (de) *	1996-09-28	2000-12-07	Danfoss Fluid Power As Nordbor	Steuerventil
US6035930A (en) *	1998-06-30	2000-03-14	Nelson Industries, Inc.	Power steering reservoir and cooler
CN111022399B (zh) *	2020-01-14	2021-08-10	湖南天华建材有限公司	一种沥青道路路面碾压装置的液压系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2892312A (en) *	1958-01-27	1959-06-30	Deere & Co	Demand compensated hydraulic system
US2986166A (en) *	1959-02-13	1961-05-30	Eimco Corp	Pressure fluid control system
US3664129A (en) *	1968-05-08	1972-05-23	Hyster Co	Hydraulic cooling system
US3597921A (en) *	1969-11-19	1971-08-10	Allis Chalmers Mfg Co	Priority flow control valve
DE2046793A1 (de) *	1970-09-23	1972-03-30	Kracht Pumpen Motoren	Schaltung fur durch Wegeventile ge steuerte hydraulische Antriebe mit einer hydraulisch gesteuerten Regelpumpe

1972
- 1972-07-13 US US00271301A patent/US3800536A/en not_active Expired - Lifetime
1973
- 1973-01-01 AR AR249086A patent/AR206684A1/es active
- 1973-06-18 GB GB2888773A patent/GB1389386A/en not_active Expired
- 1973-06-26 CA CA174,959A patent/CA978055A/en not_active Expired
- 1973-06-26 ZA ZA00734327A patent/ZA734327B/xx unknown
- 1973-06-27 AU AU57394/73A patent/AU469670B2/en not_active Expired
- 1973-07-05 FR FR7324777A patent/FR2193155B1/fr not_active Expired
- 1973-07-09 BE BE133282A patent/BE802102A/xx unknown
- 1973-07-10 SE SE7309691A patent/SE7309691L/xx unknown
- 1973-07-12 IT IT26537/73A patent/IT991260B/it active
- 1973-07-12 JP JP48078007A patent/JPS4944176A/ja active Pending
- 1973-07-13 NL NL7309783A patent/NL7309783A/xx unknown
- 1973-07-13 BR BR5244/73A patent/BR7305244D0/pt unknown

Also Published As

Publication number	Publication date
AR206684A1 (es)	1976-08-13
DE2334498B2 (de)	1976-01-08
ZA734327B (en)	1975-01-29
BE802102A (fr)	1974-01-09
DE2334498A1 (de)	1974-01-31
JPS4944176A (it)	1974-04-25
NL7309783A (it)	1974-01-15
FR2193155A1 (it)	1974-02-15
US3800536A (en)	1974-04-02
AU469670B2 (en)	1976-02-19
AU5739473A (en)	1975-01-09
CA978055A (en)	1975-11-18
GB1389386A (en)	1975-04-03
BR7305244D0 (pt)	1974-08-15
SE7309691L (it)	1974-01-14
FR2193155B1 (it)	1976-09-17

Publication	Publication Date	Title
IT988669B (it)	1975-04-30	Sistema di regolazione con gruppi a persiana
IT971304B (it)	1974-04-30	Sistema di accesso a priorita variabile dinamicamente
BE807720A (nl)	1974-05-24	Down-flowkast
NL168932C (nl)	1982-05-17	Koelstelsel.
IT996263B (it)	1975-12-10	Perfezionamento nelle disposizioni di fomre a portata variabile per sistemi idraulici
AT324371B (de)	1975-08-25	Kühlsystem
AT324372B (de)	1975-08-25	Kühlsystem
IT999294B (it)	1976-02-20	Apparecchiatura di regolazione del flusso particolarmente per impian ti refrigeranti
NL7413982A (nl)	1975-05-02	Koelsysteem.
SE397738B (sv)	1977-11-14	Pulsatoalstringssystem
IT993832B (it)	1975-09-30	Unita idraulica di accumulo
CH544920A (de)	1973-11-30	Radiator
IT974223B (it)	1974-06-20	Circuito di comando fluidico per motori idraulici
IT994282B (it)	1975-10-20	Impianto scambiatore di calore
IT978818B (it)	1974-09-20	Dispositivo idrodinamico di estrusione
SE401016B (sv)	1978-04-17	Kylsystem
SE397404B (sv)	1977-10-31	Kylanordning
IT996647B (it)	1975-12-10	Ventilatore
AT317686B (de)	1974-09-10	Pumpanlage
BR7300519D0 (pt)	1973-09-20	Circuito para supervisao de ligacoes
SE397579B (sv)	1977-11-07	Kylsystem
IT1023654B (it)	1978-05-30	Dispositivo idraulico di blocco
IT979129B (it)	1974-09-30	Circuito di arresto di soneria
BR7307396D0 (pt)	1974-08-22	Radiador
ZA734327B (en)	1975-01-29	Demand hydraulic system with cooling flow circuit