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Patent Searching and Data


Title:
HYDRAULIC CONTINUOUSLY VARIABLE TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2007333010
Kind Code:
A
Abstract:

To provide a technique which reduces an installation space of each valve, while securing each function of each check valve and a relief valve, and also reduces the capacity of a charge pump.

The hydraulic continuously variable transmission device 1 comprises, on an input shaft 2: an input side plunger 8; an output side plunger 10; a cylinder block 7 storing each timing spool 9, 11 slidably in parallel with the axial direction; an input side swash plate 6 abutting on the tip of the input side plunger 8; and an output side swash plate 12 abutting on the output side plunger 10 on the opposite side to the input side swash plate 6. The device also has a configuration wherein: the check valve and the relief valve (check relief valves 38a, 38b) disposed on a passage of a replenish oil for replenishing a hydraulic oil into each closed circuit of an input side oil chamber 35 and an output side oil chamber 45 are constituted integrally; and each check relief valve 38a, 38b is included in the input shaft 2.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
OUCHIDA TAKASHI
EGUCHI SHINGO
SHIOZAKI SHUJI
Application Number:
JP2006162756A
Publication Date:
December 27, 2007
Filing Date:
June 12, 2006
Export Citation:
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Assignee:
YANMAR CO LTD
International Classes:
F16H39/14
Domestic Patent References:
JP2005263143A2005-09-29
JP2005083497A2005-03-31
JPH0712220A1995-01-17
JP2004011769A2004-01-15
Attorney, Agent or Firm:
矢野 寿一郎