Title:
【発明の名称】油圧穿孔機
Document Type and Number:
Japanese Patent JPH02504175
Kind Code:
A
Abstract:
PCT No. PCT/SU89/00095 Sec. 371 Date Mar. 2, 1990 Sec. 102(e) Date Mar. 2, 1990 PCT Filed Apr. 14, 1989 PCT Pub. No. WO89/11022 PCT Pub. Date Nov. 16, 1989.A hydraulic drilling machine comprises a drill tool (1) connected to a hydraulic motor (3), a hydraulic percussive mechanism (4) connected via a hydraulic distributor (15) to a hydraulic pressure line (11) and to a hydraulic discharge line (21), and a means (16) for sucking the liquid from the working chamber of the hydraulic percussive mechanism (4) during its idle stroke. The means (16) includes a mixing chamber (17) connected to the discharge line of the hydraulic percussive mechanism, an ejector (18) connected to the discharge line of the hydraulic motor (3), and a diffuser (19) connected to the hydraulic discharge line (21) and accommodating a nozzle of the ejector (18).
Inventors:
Nero Znikov Yuri Ivanovich
Rudakov Ivan Petrovich
Fansitein Valentin Natanovic
Medyanik Vladimir Alexandrovich
Gavrilova Valentina Vladimi Lovna
Rudakov Ivan Petrovich
Fansitein Valentin Natanovic
Medyanik Vladimir Alexandrovich
Gavrilova Valentina Vladimi Lovna
Application Number:
JP50576589A
Publication Date:
November 29, 1990
Filing Date:
April 14, 1989
Export Citation:
Assignee:
Karagandinskii Politehniceskii Institute
International Classes:
A01J7/00; A01J5/01; E21B1/26; E21B6/00; E21B6/04; E21B19/08; E21B19/086; E21B44/06; G01F11/28; G01F23/74; (IPC1-7): E21C5/00
Attorney, Agent or Firm:
Masahiko Takeda (2 outside)