EP3280913A1 - Hydro-motors system with variable combination units - Google Patents
Hydro-motors system with variable combination unitsInfo
- Publication number
- EP3280913A1 EP3280913A1 EP15888385.0A EP15888385A EP3280913A1 EP 3280913 A1 EP3280913 A1 EP 3280913A1 EP 15888385 A EP15888385 A EP 15888385A EP 3280913 A1 EP3280913 A1 EP 3280913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- output
- input
- output shaft
- shaft
- 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- Withdrawn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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/26—Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/12—Motor parameters of rotating hydraulic motors
- F04B2203/1201—Rotational speed
Definitions
- the embodiments herein generally relate to a hydro-mechanical system and particularly relate to a hydraulic motor system with variable combination units.
- a hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation).
- the hydraulic motor is the rotary counterpart of the hydraulic cylinder.
- a hydraulic motor should be interchangeable with a hydraulic pump because it performs the opposite function - similar to the way a DC electric motor is theoretically interchangeable with a DC electrical generator.
- most hydraulic pumps cannot be used as hydraulic motors because they cannot be backdriven.
- a hydraulic motor is usually designed for working pressure at both sides of the motor.
- a drive system includes two reversible hydraulic motors connected in parallel to a variable displacement pump and controlled by respective 4-port, 2-position valves.
- the motors at least one of which is a variable flow, variable speed motor, are coupled to a single output shaft via an intermediate gear section.
- the hydraulic motors are positioned on one side of the intermediate gear section and their respective drive shafts are arranged parallel relative to one another.
- a clutch which is concentrically disposed within an axial bore of a gear member, is operable to couple the drive shaft of a first of the motors to the output shaft.
- a second gear member which is driven by the output shaft of a second of the motors, is adapted to mesh with the first gear member. If both motors are of variable speed construction, it is possible to operate the drive in three speed ranges, i.e. by operation of the first hydraulic motor only, by operation of the second hydraulic motor only, or by simultaneous operation of both hydraulic motors.
- the hydraulic motor used conventionally allows only a sudden speed transition and braking ability which is undesirable during a handling of a sophisticated load. Also the hydraulic motors used for a vehicle movement have a same speed for all wheels which creates a troublesome turning of the vehicles.
- the primary object of the embodiments herein is to provide a system of hydraulic motor with various combination to provide a variable load speed.
- Another object of the embodiments herein is to provide a system of hydraulic motors with various combination to provide variable braking force.
- Yet another object of the embodiments herein is to provide a system of hydraulic motors for independent wheel drive.
- the various embodiments herein disclose a system for moving a load through a plurality of hydraulic pumps.
- the system comprises a plurality of hydraulic motors, a plurality of hydraulic pumps and a load shaft.
- Each hydraulic motor comprises a fluid chamber, an input valve, an output valve and an output shaft.
- the fluid chamber comprises a piston having its movement due to a fluid flow inside the fluid chamber.
- the input valve in each hydraulic motor control an intake fluid flow.
- the output valve is placed at a displaced position with respect to the input valve on the fluid chamber.
- the output shaft is connected to the piston in the fluid chamber.
- the input and output valves of the plurality of hydraulic are connected to a fluid supply conduit in either a series mannerism or a parallel mannerism.
- the plurality of hydraulic pumps are connected to the plurality of hydraulic motors through one or more fluid conduits.
- the load shaft is connected to the output shaft of the hydraulic motors.
- the output shafts of the plurality of hydraulic motors are connected to the load shaft in a series mannerism or a parallel mannerism.
- the output valve is closed to apply a braking effect on the output shaft.
- a force of braking is directly proportional to the number of the output valves closed.
- the speed of revolution of the output shaft is directly proportional to number of the open input valves.
- the input and output valves of the plurality of hydraulic motors are connected in series and also the output shaft of the plurality of hydraulic shafts are connected in series with each other.
- the input and output valves of the plurality of hydraulic motors are connected in series and also the output shaft of the plurality of hydraulic shafts are connected in parallel with each other.
- the input and output valves of the plurality of hydraulic motors are connected in parallel and also the output shaft of the plurality of hydraulic shafts are connected in series with each other.
- the input and output valves of the plurality of hydraulic motors are connected in parallel and also the output shaft of the plurality of hydraulic shafts are connected in parallel with each other.
- an output shaft of each hydraulic motor is independently connected to a load shaft.
- FIG. la illustrates a series combination of the hydraulic motors, according to an embodiment herein.
- FIG. lb illustrates a parallel combination of hydraulic motors, according to an embodiment herein.
- FIG. 2 illustrates an implementation of hydraulic motor in driving a load, according to an embodiment herein.
- FIG. 3 illustrates an implementation of the hydraulic motor in conjunction with a hydraulic pump in a wheel rotation, according to an embodiment herein.
- FIG. la illustrates a parallel combination of the hydraulic motors, according to an embodiment herein.
- the output shaft 101 of the plurality of hydraulic motors 102 are connected with the load shaft 103 in a parallel mannerism.
- the input 104 and output valves 105 of the plurality of hydraulic motors 102 are connected in parallel to a fluid supply conduit 106 and a fluid outlet conduit 107.
- the parallel connection allows a quick change in a rotational speed of the load shaft 103 and also offers sudden braking as the load shaft 103 is independently connected to each output shaft 101.
- FIG. lb illustrates a series combination of hydraulic motors, according to an embodiment herein.
- the output shaft 101 of the plurality of hydraulic motors 102 are connected with each other or coupled with each other and with the load shaft 103 in a series mannerism.
- the input 104 and output valves 105 of the plurality of hydraulic motors 102 are connected in parallel to a fluid supply conduit 106 and a fluid outlet conduit 107.
- the series combination allows a smooth variation in a rotation speed of the load shaft 103 during an acceleration and braking.
- FIG. 2 illustrates an implementation of hydraulic motor in driving a load, according to an embodiment herein.
- a gears (204 and 206) of the output shaft is connected to a gear 208 of the load shaft in such a way that when the output shafts of the hydraulic motors 201 and 202 rotate in a clockwise direction, the gear 204 and 206 moves in a rightward direction while during an anti-clockwise motion, they move in a leftward direction.
- the translation of the gears 204 and 206 is put in an equilibrium by the placement of the springs in sideways.
- a fluid flow in a chamber of the hydraulic motor is depicted by 207 (top view) and 208 (lateral view).
- FIG. 3 illustrates an implementation of the hydraulic motor in conjunction with a hydraulic pump in a wheel rotation, according to an embodiment herein.
- the hydraulic pump transfer a fluid at high pressure and flow rate to the individual hydraulic motors 202 which are further connected to an individual wheels.
- an opening and closing of the inlet and outlet valves controls a rotational speed of individual wheels.
- the said system with various combinations of the hydraulic motors allows to an efficient revolution speed and braking speed of a load shaft, thus allowing a user to smoothly translate a speed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hydraulic Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2015/052610 WO2016162733A1 (en) | 2015-04-10 | 2015-04-10 | Hydro-motors system with variable combination units |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3280913A1 true EP3280913A1 (en) | 2018-02-14 |
EP3280913A4 EP3280913A4 (en) | 2018-06-06 |
Family
ID=57072282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15888385.0A Withdrawn EP3280913A4 (en) | 2015-04-10 | 2015-04-10 | Hydro-motors system with variable combination units |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3280913A4 (en) |
WO (1) | WO2016162733A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1222372A (en) * | 1967-06-03 | 1971-02-10 | Langdale Engineering Company L | Improvements in or relating to supply and control mechanism for hydraulically-driven vehicles |
DE2110736B1 (en) * | 1971-03-06 | 1972-05-25 | Buckau Wolf Maschf R | DEVICE FOR DRIVING SEVERAL CENTRIFUGES TOGETHER |
FR2251736B1 (en) * | 1973-11-21 | 1977-06-10 | Poclain Sa | |
US4189920A (en) * | 1979-02-08 | 1980-02-26 | Caterpillar Tractor Co. | Load signal control of hydraulic motor displacement |
FI75308C (en) * | 1985-01-25 | 1988-06-09 | Ky Carlson Project Kb | HYDROSTATISKT DRIVSYSTEM. |
JPH01105064A (en) * | 1987-10-14 | 1989-04-21 | Honda Motor Co Ltd | Hydraulic continuously variable transmission |
DE4307616C2 (en) * | 1993-03-08 | 1996-06-27 | Mannesmann Ag | Hydrostatic-mechanical transmission |
US20110179781A1 (en) * | 2010-01-27 | 2011-07-28 | Charles Leon Fant | Hydraulic drive system for use in driven systems |
-
2015
- 2015-04-10 WO PCT/IB2015/052610 patent/WO2016162733A1/en unknown
- 2015-04-10 EP EP15888385.0A patent/EP3280913A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2016162733A1 (en) | 2016-10-13 |
EP3280913A4 (en) | 2018-06-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20171110 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20180507 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F04B 49/00 20060101AFI20180430BHEP |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20181101 |