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
  • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
  • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
  • F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
  • F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
  • F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
  • F04B1/1072—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks with cylinder blocks and actuating cams rotating together

Definitions

• the device is a radial reciprocating engine provided with a built in synchronizing mechanism, which is intended to be driven as pump or motor and which may be designed with a fixed or an infinitely adjustable displacement.
• a radial reciprocating engine provided with a built in synchronizing mechanism, which is intended to be driven as pump or motor and which may be designed with a fixed or an infinitely adjustable displacement.
• both the rotating main portions of the engine; the centre shaft 1 and the outer rim 2 are urged to rotate at a synchonous speed and the mechanism simultaneously causes; at one hand a transfer of the forces generated by the pressure medium and on the other hand a balancing by means of the force moment, which from the outside is supplied or led away through the shaft journal of the machine.
• the synchronizing mechanism consists of a synchronizing hub 3, supported thus that its centre of rotation coincides with the line c-c and being designed with a guide rail-provided control arm, which in combination with two cam rollers 24 and 23, affixed to the centre shaft 1 and to the outer rim 2 resp., causes a restricted rotation of these portions.
• the centre shaft 1, with the rotational centre a-a, is supported in fixed bearings in the machine frame. At distance e, on both sides of the line a-a are found the rotational centra b-b and c-c for the outer rim and for the synchronizing hub 3 resp.
• Drawing I shows a machine designed for constant displacement Fig 1 - longitudinal section
• Drawing II shows a machine with adjustable displacement
• the frame consists of a shell 4 with two bearing bracings 5 and 6 bolted thereto and having built in bearings 7 and 8 for the centre shaft 1, one end of which is shaped into a shaft journal for force transmission and with the opposite end thereof shaped to receive the feed slide 9.
• the centre shaft in section d-d has a number of spherical borings 13 for fitting of the cylinders 10. From each boring there is a radially directed hole 14 for communication with the feed slide 9.
• the centre shaft is designed for receiving a cam roller 24 bolted thereto at a distance r 1 from the rotational centre (a-a).
• the outer rim 2 is supported by two bearings 15 and 16, which with the bearing attachment 17 are mounted thus that the rotational centre b-b will become parallel to (a-a) at distance e from this. Furthermore the outer rim has internally a number of spherical borings 21 for fitting of pistons 11 and there is furthermore a cam roller 23 bolted thereto at the distance R 1 from the rotational centre ( b-b).
• the synchronizing hub 3 has a supporting bearing 18 built into the bearing attachment 19, which is mounted thus that the line c-c will become the centre of rotation. This line is parallel to and positioned at distance e from the rotational centre (a-a) of the centre shaft but at the opposite side as compared to the line (b-b).
• the shell 4 has bores for guide bushings 26, 27, 28 and 29 and guide screws 36 and 38 for guiding the new bearing attachments 20 and 22.
• the bushing 27 is a guidance for an adjustment screw 30, which is arranged in threads in the bearing attachment 20, and which has a gear wheel 32 clamped thereto, and which receives its motion from a gear wheel 35 fitted to the adjustment hand wheel 37.
• the bearing attachment 22 for the synchronizing hub receives its motion in the same manner via the gear wheel 33 from the hand wheel 37, but with the intermediary of a left hand adjustment screw 31, for giving this attachment an opposed movement at adjustment.
• FIG. 7 is a schematic sketch of the cross section d-d shown in Fig 2.
• the machine is operated as motor with the "right-hand half" as pressure side and the rotating main parts, the centre shaft 1 and the outer rim 2, have been urged to complete the same rotational angle ⁇ ° from the initial position.
• the restricted guiding is effected in that the cam rollers 23 and 24 are urged by the guide rails of the synchronizing hub to take up such positions that their rotational centra together with the rotational centra of the main parts form two congruent triangles, all equally situated sides of which being parallel.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Reciprocating Pumps (AREA)
• Friction Gearing (AREA)
• Transmission Devices (AREA)
• Valve-Gear Or Valve Arrangements (AREA)
• Hydraulic Motors (AREA)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=20375294

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (4)

Citations (2)

Family Cites Families (3)

• 1989
  • 1989-03-10 SE SE8900841A patent/SE463111B/sv not_active IP Right Cessation
• 1990
  • 1990-04-12 WO PCT/SE1990/000251 patent/WO1991016540A1/en active IP Right Grant
  • 1990-04-12 EP EP90908712A patent/EP0524922B1/en not_active Expired - Lifetime
  • 1990-04-12 JP JP90505604A patent/JPH05506489A/ja active Pending
  • 1990-04-12 DE DE69010513T patent/DE69010513T2/de not_active Expired - Fee Related
  • 1990-04-12 US US07/938,121 patent/US5279208A/en not_active Expired - Fee Related
• 1992
  • 1992-09-29 FI FI924357A patent/FI924357A/fi not_active Application Discontinuation

Patent Citations (2)

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