Title:
【発明の名称】アキシャルピストンポンプ
Document Type and Number:
Japanese Patent JP2521073
Kind Code:
B2
Abstract:
PURPOSE:To make it possible to obtain the desired reset characteristics of a swash plate by lever operation and secure its excellent neutral characteristics by enabling two or more valve plates rotatable in one optional direction to rotate freely in mutually different direction, and the sliding surface of the valve plate engaging with a cylinder block to rotate toward the swash plate in any direction. CONSTITUTION:An upper valve plate 17a and a lower one 17b are provided rotatably in one optional direction, and these valve plates 17a, 17b are made rotatable in mutually different direction, and moreover the sliding surface of the upper valve plate 17a engaging with a cylinder block 11 is made rotatable toward a swash plate 15 in any direction. The cylinder block 11 can therefore incline in any directions being tiltingly rotational and right and left. When an operating lever is set near its neutral position, a tiltingly rotating range having largely generated reset moment to a neutral point can be widened, and the reset moment can also increase sharply. In addition to that, the cylinder block 11 can easily keep a tiltingly rotating angle relative to the swash plate 15 at zero, and its neutral width also increases. Thus the desired reset characteristics of the swash plate can be obtained, and its excellent neutral characteristics also can be secured.
Inventors:
INOE ATSUSHI
NAKAZATO MASAKAZU
NAKAZATO MASAKAZU
Application Number:
JP31271286A
Publication Date:
July 31, 1996
Filing Date:
December 27, 1986
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD
International Classes:
F04B1/20; (IPC1-7): F04B1/20
Domestic Patent References:
| JP4888503A |
Attorney, Agent or Firm:
Nobuyuki Shima