• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1475055 Rotary positive-displacement fluidmachines TRW Inc 25 Feb 1975 [22 March 1974] 7892/75 Heading F1F [Also in Division B7] A hydrostatic controller is of the kind comprising an input shaft 15, Fig. 3, which carries a pin 55 engaged in a slot 56 of a valve spool 50 mounted for axial and rotational movement, and which is coupled through torsion blades 27 to a wobble shaft 23 drivingly connected with the rotor 22 of a gerotor fluid metering mechanism 20, the controller being characterized in that the valve spool 50 co-operates with the housing 60 of the controller to control fluid-flow, in use, to and from the chambers of a double-acting steering cylinder (13), Fig. 1 (not shown), and, in addition, to provide a commutating function so as to direct fluid, in use, to expanding pockets of the gerotor mechanism and receive fluid from contracting pockets of the gerotor mechanism. As illustrated, the spool valve 50 is provided with axially-spaced first and second sets of circumferentially-spaced slots 70a-70f, Fig. 6 and 7, and 71a-71f, and the housing 60 is provided with axially-spaced first and second sets of radially-extending passages 80a- 80g and 81a-81g which are inter-connected by respective axially-extending passages 82a-82g communicating with the pockets of the gerotor mechanism. The wobble shaft 23, Fig. 3, is coupled, by splines, at one end thereof to a drive sleeve 24 which, in turn, is coupled by splines to the valve spool 50. The input shaft 15 has an end portion 15a which engages, with limited rotational play, in one end of the drive sleeve 24.
    公开号:SU1041044A3
    申请号:SU752118754
    申请日:1975-03-21
    公开日:1983-09-07
    发明作者:Локхарт Миллер Лоуренс
    申请人:Трв Инк (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to hydraulic adjustments for regulating fluid flow to devices similar to a vehicle steering cylinder.
    Closest to the present invention, there is a hydrostatic regulator comprising a housing with an inlet and two exhaust channels of the working fluid connected to the corresponding outlet grooves on the inner: cylindrical bore of the housing with chamfers, a gerotor dispenser with fluid pumping chambers formed by projections and recesses in the stator and the rotor of the metering unit, a cylindrical valve mounted in the cylindrical bore of the body and equipped with a device for its axial and rotary movement relative to body, annular grooves on its surface, as well as two rows of grooves, the number of which in each row is equal to the number of projections on the rotor of the dispenser and which are spaced along the axis of the spool with an offset in each row and between the rows under the 1I mr. with angles with the same length of grooves with the ends lying in a plane common to each row, perpendicular to the axis of the spool, a system of axial channels placed in the housing and connected to the fluid pumping chambers, and a system of hydraulic channels also opened in the housing; and They are made with axial channels and made in planes located mainly in the middle of the slots on the spool with the number of channels in each row one more than the number of grooves in each row 1.
    However, in the known regulator, the seal between the housing and the power end is subject to increased pressure, which requires careful design of the seal and adversely affects the reliability of the regulator.
    The purpose of the invention is to increase the reliability of the controller.
    The goal is achieved by the fact that a cylindrical bore in the housing is provided with two inlet grooves, each of which is connected to the inlet channel, and each row of slots on the spool is placed between adjacent inlet and outlet grooves and separated in neutral position of the spool of these grooves.
    FIG. Figure 1 shows the layout of the hydrostatic controller in the hydraulic circuit for controlling the steering mechanism of the sport vehicle; in fig. 2 - hydrostatic regulator, cross section, along a gerotor meter; FIG. 3 is a longitudinal section; in fig. 4 is a section A-A in FIG. 3; in fig. 5, node I in FIG. 3; in fig. 6 is a section BB in FIG. H; in fig. 7 -, view of the spool when scanning on its outer surface.
    The hydrostatic regulator contains a housing 1 with an inlet 2 and two exhaust 3 and 4 channels of the working fluid (Fig. 1). The latter are connected respectively to the exhaust grooves 5 and 6. on the inner cylindrical bore 7 of the housing 1 (fig. 3). The bore 7 is provided with a series of dividing chamfers 8. On the side of one of the ends of the housing 1 there is a gerotor metering device 9 (Fig.2) with chambers 10-15 pumping fluid formed by the projections 16 and recesses 17 in the stator 18 and the rotor 19 In the cylindrical bore 7 of the housing 1, a cylindrical spool 20 is installed. The latter is equipped on the sides of one of its ends with a device for moving and swiveling (FIG. 5), which is made in the form of a pin 21 moving in an oblique groove 22 at the end of the spool 20. The oblique groove 22 is designed as that with the Institute of thumb 23, with united with the steering column 24, the spool 20 is moved along and around its axis. On the surface of the spool 20, annular grooves 25-28 are made (Fig. 7 and two rows of B and B 29 and 30. The number of slots in each row is equal to the number of projections 16 on the rotor 19. The grooves 29 and 30 are placed along the axis of the spool 20 with an offset in each row and between rows at equal angles with the same length of grooves 29 and 30 with ends 31 and 32 lying in a plane common to each row, perpendicular to the axis of the spool 20.
    The housing 1 contains a system of axial channels 33, which are connected to chambers 10-15 for pumping fluid and radial channels 34 and 35, which are connected to axial channels 33. Channels 34 are made in planes located mainly in the middle of the grooves 29, and channels 35 - mainly in the middle of the grooves 30. The number of radial channels 34 is one more than the number of grooves 29 in the row. The same is the number of channels 35 with respect to the number of slots 30.
    The cylindrical boring 7 in the housing 1 is equipped with two exhaust ports 36 and 37, each of which is connected to the inlet 2, X1 each row of slots 29 and 30 on the spool 20 is placed between the inlet grooves 36 and 37, separated from the slots in the neutral position of the spool 20 29 and 30 by dividing chamfers 8. The discharge of fluid into the reservoir 38 (Fig. 1) is carried out by magis; 39, with which the grooves 40-42 of the fluid discharge are connected. The outlet channel 3 is connected by a line 43 to one OF the cavities (not labeled) of the power cylinder 44, and the exhaust pipe 4 by a line 45 is connected to another cavity (not indicated) of the cylinder 44. The latter is intended to drive the rotator of the vehicle. Steering column 24 is connected with the steering wheel 46 (Fig. 1). The drive of the gerotor dispenser 9 is driven through a twisting blade 47 and a transmission link 48 placed inside the spool 2. The hydrostatic regulator operates as follows. When the spool 20 is in the neutral position (Fig. 3), the fluid enters the inlet grooves 36 and 37 through the Vluca duct 2 from the reservoir 38 under pressure generated by a pump (not labeled). In the neutral position of the spool 20, the dividing chamfers 8 do not prep. The flow of fluid from the inlet points 36 and 37 into the discharge port 41 of the fluid is flowing. From the last fluid fto. line 39 is dropped into tank 38. In the neutral position of the spool 20, dividing chamfers 8 cut off the exhaust grooves 5 and b, which are connected to the working cavities of the power cylinder 44. When turning the steering wheel 46, and therefore the steering column 24, and the finger 23 the spool rotates 20 and at the same time it moves forward. If the spool 20 moves to the right (according to the drawing), the liquid from the inlet groove 36 falls into the group of grooves 29, since the obstacle in the form of a corresponding dividing chamfer 8 between the inlet groove 36 and the grooves 29 is eliminated. Fluid from the grooves 29 enters the radiGe channels 34 and further along axial channels 33 it is directed towards the gerotor dispenser 9, where it falls into the group of pumping chambers that receive liquid. Another group of pumping chambers displaces the liquid to the connected part of the axial timbers 33. According to the last liquid radial channels 35 and further to grooves 30 connected to them are sent. Lastly being connected to outlet point 5, fluids are allowed to flow through line 43 to the corresponding cavity of the power cylinder 44. In this case, the rod moves in the power cylinder 44 not marked) in a given direction. At the same time, the fluid from the other plane of the power cylinder 44 is displaced by the main line 45 to the discharge groove 6. connected to the exhaust channel 4 (Fig. one). This is ensured by the connection of the outlet groove 6 with the groove 40 of the liquid-discharge. From the latter, the liquid enters through the line 39 into the reservoir 38. If the spool 20 is moved to the left (blackened) from its neutrino position, then the inlet groove. 37 is connected to a part of the grooves 30. Thanks to the liquid, the fluid enters the radial channels 35 and then into the axial channels 33 to the gerotor dispenser 9. At the same time, the liquid enters the group of pumping chambers that are connected to, part of the axial channels 33, providing the movement of the liquid to the side of the gerotor metering unit 9. Another group of pumping chambers of the metering unit 9 provides the movement of fluid in the opposite direction along part of the axial channels 33 connected with them. Liquid flows along these channels to the radial channel 34 and goes to the grooves 29. The latter, being connected to the outlet groove 6, I ALLOW the metered liquid to flow to the exhaust channel 4 and further along line 45 to the cavity of the power cylinder 44, thereby ensuring the movement of its rod and, therefore, turning device of the vehicle. in a given direction. At the same time, fluid from the other cavity of the power cylinder 44 through line 43 enters the outlet channel 3 and further to the outlet proe connected with it, point 5. From the latter, the fluid falls into the fluid discharge groove 42. This is possible due to the displacement of the spool 20, when there is no obstacle in the form of a separation, the flares 8, located between the outlet groove 5 and the discharge groove 42, of the liquid. From the latter, the liquid enters the highway 39 and on. into reservoir 38. The proposed hydrostatic regulator has increased reliability due to the fact that the seal on the side of the steering column works in lighter conditions (under reduced pressure). In addition, the compact placement of the internal channels associated with the spool allows a regulator with a reduced length dimension.
    15
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    12

    AJ J- / 33 35 20 h / / / / /
    / / / I / I I. I
    7 ifO 8 -, 36 in fit 37
    Rig. J
    20
    权利要求:
    Claims (1)
    [1]
    (56) 1. The application of the Federal Republic of Germany No. 1480720, class._ 62 with 47, published. 1969.. A HYDROSTATIC REGULATOR, comprising a housing with inlet and two outlet channels of the working fluid connected to corresponding outlet grooves on the inner cylinder bore of the housing with dividing chamfers, a gerotor batcher with fluid bore chambers formed by protrusions and recesses in the stator and rotor of the batcher, a cylindrical spool mounted in a cylindrical bore housing and equipped with a device for its axial and rotational movements relative to the housing, annular grooves on its p the surface, as well as two rows of grooves, the number of which in each row is equal to the number of protrusions on the metering rotor and which are spaced along the spool axis with offset in each row and between rows at equal angles with the same length of grooves with ends that run in common for each a row of a plane perpendicular to the axis of the spool. a system of axial channels located in the housing and connected to the pumping chambers. fluid, and a system of radial channels, also 1 , located in the housing, connected to the axial channels and made in planes located mainly in the middle of the grooves on the spool with the number of channels in each row is one more than the number of grooves in each row, characterized in that, in order to increase reliability, the cylindrical bore in the housing is equipped with two inlet grooves, each of which is connected to the inlet channel, and each row of grooves on the spool is placed between the inlet and outlet grooves adjacent to it and the department He is in the neutral position of the spool from these grooves by the indicated dividing chamfers.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1041044A3|1983-09-07|Hydrostatic regulator
    US3587235A|1971-06-28|Regenerative hydrostatic steering system
    US3564848A|1971-02-23|Steering equipment particularly for heavy vehicles
    US4570736A|1986-02-18|Dual flow variable assist power steering gear mechanism
    US2570411A|1951-10-09|Power transmission
    US4804016A|1989-02-14|Fluid controller with improved pressure balancing
    US3887308A|1975-06-03|Valve porting arrangement for a gerotor
    EP0092637B1|1986-03-05|Apparatus with staged pressure differential for controlling fluid flow
    KR960016082B1|1996-11-27|Torque-generating steering device with load-sensing capability
    US4016949A|1977-04-12|Hydrostatic load sensitive regenerative steering system
    US3598509A|1971-08-10|Hydraulic device
    SU1022668A3|1983-06-07|Hydraulic rotary servo drive
    FI105283B|2000-07-14|Improvements in pumps
    US3802799A|1974-04-09|Valve for follow-up servo mechanism
    EP0502456A2|1992-09-09|Fluid controller with load sensing priority flow control capability
    US4378030A|1983-03-29|Power steering gear mechanism with rotary control valve
    USRE31067E|1982-10-26|Hydrostatic control unit
    SU1019998A3|1983-05-23|Hydrostatic steering system of vehicle
    US3887028A|1975-06-03|Steering system
    US5992458A|1999-11-30|Load reaction steering unit for unequal area cylinder
    US3957129A|1976-05-18|Steering system
    US6769249B2|2004-08-03|Low slip steering system and improved fluid controller therefor
    US4576003A|1986-03-18|Hybrid load-sense vehicle hydrostatic steering system
    GB1139451A|1969-01-08|Improvements in and relating to rotary positive displacement pump
    US4204817A|1980-05-27|Torque-amplifying hydraulic servo-mechanism, particularly for power steering systems in motor vehicles
    同族专利:
    公开号 | 公开日
    DE2511308C2|1989-07-27|
    DE2511308A1|1975-09-25|
    US3937601A|1976-02-10|
    FR2264701A1|1975-10-17|
    ES435892A1|1976-12-16|
    NL180646B|1986-11-03|
    BR7501664A|1975-12-23|
    GB1475055A|1977-06-01|
    DK142678B|1980-12-15|
    JPS5430570B2|1979-10-02|
    BE826780A|1975-07-16|
    IE40807B1|1979-08-15|
    DK142678C|1981-08-10|
    IT1037139B|1979-11-10|
    SE7503237L|1975-09-23|
    NL180646C|1987-04-01|
    CH590409A5|1977-08-15|
    AU7911075A|1976-09-16|
    NL7503301A|1975-09-24|
    CA1030425A|1978-05-02|
    LU72105A1|1975-08-20|
    DK81975A|1975-09-23|
    FR2264701B1|1979-07-27|
    SE403898B|1978-09-11|
    IE40807L|1975-09-22|
    JPS50127333A|1975-10-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2984215A|1958-11-25|1961-05-16|Controller for fluid pressure operated devices |
    US3385057A|1964-08-25|1968-05-28|Trw Inc|Hydraulic controller|
    US3348493A|1965-10-21|1967-10-24|Char Lynn Co|Fluid pressure remote control devices and systems|
    US3481147A|1967-12-15|1969-12-02|Trw Inc|Hydraulic power system|
    DE1755387C3|1968-05-03|1973-11-08|Danfoss A/S, Nordborg |Hydrostatic steering device, especially for heavy vehicles|
    DE1755460C2|1968-05-11|1986-08-07|Danfoss A/S, Nordborg|Hydrostatic control device, in particular for steering|
    DE1751979C3|1968-08-27|1981-01-22|Trw Inc., Cleveland, Ohio |Hydraulic control device|
    US3587235A|1969-06-02|1971-06-28|Trw Inc|Regenerative hydrostatic steering system|
    US3600893A|1970-02-16|1971-08-24|Trw Inc|Hydraulic device having pressure dam valve means|
    US3613364A|1970-03-06|1971-10-19|Trw Inc|Hydrostatic steering system with hydraulic reaction and reaction limiting|CA1059440A|1977-01-24|1979-07-31|Oliver W. Johnson|Controller for fluid pressure operated devices|
    IT1077304B|1976-06-23|1985-05-04|Eaton Corp|REGULATOR FOR DEVICES OPERATED BY THE PRESSURE OF A FLUID|
    DE2637332C3|1976-08-19|1981-04-23|Danfoss A/S, 6430 Nordborg|Hydraulic power steering device|
    DE2712920C3|1977-03-24|1980-08-07|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydraulic pressure medium control device, in particular for hydrostatic steering devices of motor vehicles|
    DE2749353C2|1977-11-04|1983-08-04|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Pressure medium control device, in particular for hydrostatic steering devices in motor vehicles|
    DE2917298C2|1979-04-28|1985-03-21|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Rotary valve device for controlling a hydrostatic servo drive|
    DE2917435C2|1979-04-28|1987-03-12|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen, De|
    DE2919051C2|1979-05-11|1986-09-18|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydrostatic power steering|
    DE2919050C2|1979-05-11|1987-12-23|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen, De|
    US4494915A|1979-06-25|1985-01-22|White Hollis Newcomb Jun|Hydrostatic steering unit with cylindrical slide member within clindrical valve sleeve|
    DE3037660C2|1980-10-04|1982-12-02|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Hydrostatic power steering|
    US5016672A|1990-04-23|1991-05-21|Eaton Corporation|Steering controller with integral parallel control|
    US5115640A|1990-04-23|1992-05-26|Eaton Corporation|Fluid controller and logic control system for use therewith|
    DE102018106790A1|2018-03-22|2019-09-26|Zentis Gmbh & Co. Kg|Container and method for its operation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/453,713|US3937601A|1974-03-22|1974-03-22|Hydrostatic controller wherein the control valve spool includes the commutator valve|
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