JPS6487945A - Continuously variable transmission - Google Patents

Continuously variable transmission

Info

Publication number
JPS6487945A
JPS6487945A JP62246837A JP24683787A JPS6487945A JP S6487945 A JPS6487945 A JP S6487945A JP 62246837 A JP62246837 A JP 62246837A JP 24683787 A JP24683787 A JP 24683787A JP S6487945 A JPS6487945 A JP S6487945A
Authority
JP
Japan
Prior art keywords
high speed
motor
speed side
pump
mechanical transmission
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.)
Pending
Application number
JP62246837A
Other languages
Japanese (ja)
Inventor
Yoshihiko Nakakoji
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.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP62246837A priority Critical patent/JPS6487945A/en
Publication of JPS6487945A publication Critical patent/JPS6487945A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To promote the improvement of efficiency in the whole unit of a system by locking a low speed side hydraulic pump/motor while separating a high speed side hydraulic pump/motor from a mechanical transmission system in the final stage of a high speed mode. CONSTITUTION:In a high speed mode, transmitting one part of power through high speed side mechanical transmission systems (a), (b), the rest of power is transmitted by actuating a low speed side pump/motor 7 serving as the pump and a high speed side pump/motor 8 serving as the motor. Here approaching a predetermined high speed operation stage, when the high speed side pump/ motor 8 is placed in a condition that it is almost unable to generate output torque to the outside, a lock mechanism 32 is switched to a lock position, locking the low speed side pump/motor 7 while releasing a clutch mechanism 33, and the high speed side pump/motor 8 separates its input/output shaft from the high speed side mechanical transmission system (b). Thus outputting all the input power through the high speed side mechanical transmission system, the hydraulic pump/motor improves even its durability while enhancing transmission efficiency.
JP62246837A 1987-09-30 1987-09-30 Continuously variable transmission Pending JPS6487945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62246837A JPS6487945A (en) 1987-09-30 1987-09-30 Continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62246837A JPS6487945A (en) 1987-09-30 1987-09-30 Continuously variable transmission

Publications (1)

Publication Number Publication Date
JPS6487945A true JPS6487945A (en) 1989-04-03

Family

ID=17154432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62246837A Pending JPS6487945A (en) 1987-09-30 1987-09-30 Continuously variable transmission

Country Status (1)

Country Link
JP (1) JPS6487945A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012517572A (en) * 2009-02-12 2012-08-02 マリ ホールディング アーゲー Hydrostatic continuously variable transmission with torque division
CN103591247A (en) * 2013-11-19 2014-02-19 北京理工大学 Equal-proportion four-section-type hydraulic mechanical composite stepless transmission device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012517572A (en) * 2009-02-12 2012-08-02 マリ ホールディング アーゲー Hydrostatic continuously variable transmission with torque division
US8915813B2 (en) 2009-02-12 2014-12-23 Mali Holding Ag Continuously variable hydrostatic transmission having torque division
CN103591247A (en) * 2013-11-19 2014-02-19 北京理工大学 Equal-proportion four-section-type hydraulic mechanical composite stepless transmission device

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