GB1180079A - Improvements in or relating to Pneumatic Rotary-Piston Motors. - Google Patents

Improvements in or relating to Pneumatic Rotary-Piston Motors.

Info

Publication number
GB1180079A
GB1180079A GB4438667A GB4438667A GB1180079A GB 1180079 A GB1180079 A GB 1180079A GB 4438667 A GB4438667 A GB 4438667A GB 4438667 A GB4438667 A GB 4438667A GB 1180079 A GB1180079 A GB 1180079A
Authority
GB
United Kingdom
Prior art keywords
chamber
labyrinth
piston
chambers
bore
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.)
Expired
Application number
GB4438667A
Inventor
Hans Prillwitz
Klaus Mechelke
Karl-Heinz Koessler
Bodo Seyfarth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NILES PRESSLUFTWERKZEUGE BERLI
Original Assignee
NILES PRESSLUFTWERKZEUGE BERLI
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.)
Filing date
Publication date
Application filed by NILES PRESSLUFTWERKZEUGE BERLI filed Critical NILES PRESSLUFTWERKZEUGE BERLI
Priority to GB4438667A priority Critical patent/GB1180079A/en
Publication of GB1180079A publication Critical patent/GB1180079A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/068—Silencing the silencing means being arranged inside the pump housing

Abstract

1,180,079. Rotary-piston pneumatic-motors. NILES PRESSLUFTWERKZEUGE BERLIN, VEB. Sept, 29, 1967, No.44386/67. Heading F1F. In a pneumatic rotary-piston motor noise is reduced by discharging exhaust air from a chamber 13 through apertures 14, 18, a chamber 16 for a power output shaft 3, a labyrinth constituted by recesses 17a ... 17# and 17A ... - 17F in a fixed cylinder 4 and a housing 1, respectively, and co-axial annular-chambers 23, 25, the chamber 16 and the labyrinth being connected to the chamber 23 by an aperture 26 and bores 21, respectively. A bore 27 connects the chamber 23 to the chamber 25, the latter being vented to the atmosphere by a bore 28. The chamber 13 is at the low-pressure and of a crescent-shaped space between the cylinder 4 and a vaned piston, or rotor, 5, to which space air is admitted through a passage 9 terminating at a recess 11 to minimize a siren effect due to the vanes of the rotor. Energy in the exhaust air is dissipated by an air cushion in the narrowest end of the chamber 16, turbulence in the labyrinth, a ring 22 and a cap 24 being made of, or lined with, sound-absorbing material, and a further turbulence in the chambers 23, 25.
GB4438667A 1967-09-29 1967-09-29 Improvements in or relating to Pneumatic Rotary-Piston Motors. Expired GB1180079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4438667A GB1180079A (en) 1967-09-29 1967-09-29 Improvements in or relating to Pneumatic Rotary-Piston Motors.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4438667A GB1180079A (en) 1967-09-29 1967-09-29 Improvements in or relating to Pneumatic Rotary-Piston Motors.

Publications (1)

Publication Number Publication Date
GB1180079A true GB1180079A (en) 1970-02-04

Family

ID=10433045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4438667A Expired GB1180079A (en) 1967-09-29 1967-09-29 Improvements in or relating to Pneumatic Rotary-Piston Motors.

Country Status (1)

Country Link
GB (1) GB1180079A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277963A (en) * 1993-05-11 1994-11-16 Barmag Luk Automobiltech Hydraulic pump outlets
EP0768465A1 (en) * 1995-10-09 1997-04-16 Seiko Seiki Kabushiki Kaisha Gas compressor
CN109973458A (en) * 2017-12-28 2019-07-05 信孚产业股份有限公司 Reduced noise pneumatic motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277963A (en) * 1993-05-11 1994-11-16 Barmag Luk Automobiltech Hydraulic pump outlets
EP0768465A1 (en) * 1995-10-09 1997-04-16 Seiko Seiki Kabushiki Kaisha Gas compressor
CN109973458A (en) * 2017-12-28 2019-07-05 信孚产业股份有限公司 Reduced noise pneumatic motor

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