GB1246119A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1246119A – Transmission system
– Google Patents

GB1246119A – Transmission system
– Google Patents
Transmission system

Info

Publication number
GB1246119A

GB1246119A
GB4313468A
GB4313468A
GB1246119A
GB 1246119 A
GB1246119 A
GB 1246119A
GB 4313468 A
GB4313468 A
GB 4313468A
GB 4313468 A
GB4313468 A
GB 4313468A
GB 1246119 A
GB1246119 A
GB 1246119A
Authority
GB
United Kingdom
Prior art keywords
gear
valve
established
control
ratio
Prior art date
1967-10-23
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
GB4313468A
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.)

Cessna Aircraft Co

Original Assignee
Cessna Aircraft Co
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.)
1967-10-23
Filing date
1968-09-11
Publication date
1971-09-15

1968-09-11
Application filed by Cessna Aircraft Co
filed
Critical
Cessna Aircraft Co

1971-09-15
Publication of GB1246119A
publication
Critical
patent/GB1246119A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16H—GEARING

F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing

F16H61/38—Control of exclusively fluid gearing

F16H61/40—Control of exclusively fluid gearing hydrostatic

F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity

F16H61/433—Pump capacity control by fluid pressure control means

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16H—GEARING

F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing

F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16H—GEARING

F16H61/38—Control of exclusively fluid gearing

F16H61/40—Control of exclusively fluid gearing hydrostatic

F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity

F16H61/423—Motor capacity control by fluid pressure control means

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16H—GEARING

F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion

F16H59/68—Inputs being a function of gearing status

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T137/00—Fluid handling

Y10T137/8593—Systems

Y10T137/86493—Multi-way valve unit

Y10T137/86718—Dividing into parallel flow paths with recombining

Y10T137/86743—Rotary

Y10T137/86751—Plug

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T74/00—Machine element or mechanism

Y10T74/19—Gearing

Y10T74/19149—Gearing with fluid drive

Y10T74/19158—Gearing with fluid drive with one or more controllers for gearing, fluid drive, or clutch

Y10T74/19163—Gearing with fluid drive with one or more controllers for gearing, fluid drive, or clutch with interrelated controls

Abstract

1,246,119. Change-speed control. CESSNA AIRCRAFT CO. 11 Sept., 1968 [23 Oct., 1967], No. 43134/68. Heading F2D. An infinitely variable transmission having its ratio changed by a fluid pressure servomotor is followed by a stepped change-speed gear, and the rate at which fluid is supplied to the servomotor is controlled in accordance with the ratio established in the change-speed gear. In operation a selected ratio is established in the stepped gear and the output speed is then increased by increasing the ratio of the infinitely variable transmission from zero or a minimum value to its maximum value, and the rate at which this is carried out is adjusted in accordance with the ratio established in the stepped gear to give, for example, constant acceleration, the output speed increasing from zero to a maximum of, say, 4 miles an hour in 4 seconds when first gear is established in the stepped gear, and the output speed increasing from zero to 12 miles an hour in 12 seconds when the second gear is established. As shown the infinitely variable transmission is of the hydrostatic type comprising a variable displacement swash-plate pump driving a variable (or fixed) displacement swash-plate motor, The pump and motor swash plates are controlled by double-acting servomotors 25, 26 controlled by a displacement control 27 to which liquid is supplied by a pump 30 at a rate determined by a valve 20. The valve 20 is linked to the gear lever of a stepped gear 16, and when first gear is established in the gear 16 the valve 20 is in the position shown giving relatively unrestricted flow to the displacement control 27 so that when a change of displacement is demanded by the control 27 the servos respond quickly. When second gear is established, the valve 20 is shifted rightwardly and flow to the control 27 is limited to that through a slot 48 in the valve so that the response is slower. In third gear the valve 20 is shifted to the left and flow passes through a smaller slot 49 to give a still slower response. The valve 20 need not be in the supply line to the control 27, it could be in the exhaust line 58 from the control 27, or individual valves 20 could be positioned in the supply lines 56, 60 or in the return lines 57, 61 between the control 27 and the servomotors. Various embodiments of the valve 20 are described, for example the valve spool may co-operate with different size passages provided in the valve housing, and the size of the passages may be adjustable by means of needle valves, or a rotary valve may be substituted for the axially slidable one described. In other modifications the hydrostatic transmission is replaced by expanding pulley gearing. In one form of expanding pulley gearing a driving pulley has one flange adjusted by a fluid pressure servomotor and a driven pulley has a spring biased flange. In another embodiment two adjustable pulleys are mounted on a common axis and co-operative respectively driving and driven pulleys, the axis of the adjustable pulley being respectively shiftable towards the driving and driven pulleys by a fluid pressure servomotor to change the ratio.

GB4313468A
1967-10-23
1968-09-11
Transmission system

Expired

GB1246119A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US67719467A

1967-10-23
1967-10-23

Publications (1)

Publication Number
Publication Date

GB1246119A
true

GB1246119A
(en)

1971-09-15

Family
ID=24717702
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB4313468A
Expired

GB1246119A
(en)

1967-10-23
1968-09-11
Transmission system

Country Status (4)

Country
Link

US
(1)

US3463034A
(en)

FR
(1)

FR1584162A
(en)

GB
(1)

GB1246119A
(en)

SE
(1)

SE342586B
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR2499657A1
(en)

1981-02-06
1982-08-13
Alfa Romeo Spa

CONTINUOUS AUTOMATIC SPEED CHANGE FOR MOTOR VEHICLES

Families Citing this family (14)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4082013A
(en)

1974-11-22
1978-04-04
General Motors Corporation
Hydrostatic transmission control

US4185521A
(en)

1975-03-10
1980-01-29
Caterpillar Tractor Co.
Hydraulic control system for a hydrostatic-mechanical transmission

US4193323A
(en)

1975-09-02
1980-03-18
Caterpillar Tractor Co.
Controls for combined hydrostatic and multiple speed range transmission units with automatic speed control and braking functions

US4080850A
(en)

1975-09-02
1978-03-28
Caterpillar Tractor Co.
Controls for combined hydrostatic and multiple speed range transmission units with automatic speed control and braking functions

JPS55173750U
(en)

1979-05-31
1980-12-12

US4663937A
(en)

1981-07-06
1987-05-12
Creative Energy Technologies, Inc.
Electro-mechanical-hydraulic power generating system

AU2893584A
(en)

1983-06-24
1985-01-03
Deere & Company
Hydrostatic transmission for a four-wheel drive vehicle

US4594666A
(en)

1983-07-11
1986-06-10
J. I. Case Company
Transmission monitor/control microprocessor for continuously variable power train

DE3807599A1
(en)

1988-03-08
1989-09-28
Hydromatik Gmbh

AUTOMOTIVE DRIVE DEVICE FOR MACHINES AND VEHICLES

CA2030271A1
(en)

1990-06-21
1991-12-22
Ray Hauser
Heavy duty hydrostatic transaxle

DE4312716A1
(en)

1993-04-20
1994-10-27
Zahnradfabrik Friedrichshafen

Double acting brake valve

IT1271804B
(en)

1994-12-27
1997-06-09
Clark Hurth Components Spa

GLOBAL CONTROL PROCEDURE OF A TRACTION GROUP FOR A GEARBOX MOVED BY A HYDROSTATIC SYSTEM

JPH10331944A
(en)

1997-05-27
1998-12-15
Honda Motor Co Ltd
Continuously variable transmission for vehicle

JP4285553B2
(en)

2007-03-20
2009-06-24
いすゞ自動車株式会社

Flow control valve of clutch control device

Family Cites Families (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3221767A
(en)

1965-12-07

Metering valve with viscosity gompensating adjustment

US3126763A
(en)

1964-03-31

Hydraulic apparatus

US2858852A
(en)

1956-10-04
1958-11-04
Harper Wyman Co
Gas valves

US3049149A
(en)

1959-12-22
1962-08-14
Citroen Sa Andre
Three-way slide valve with adjustable overlap

US3112764A
(en)

1960-10-28
1963-12-03
Bendix Corp
Flow-regulating valve

US3219062A
(en)

1962-06-03
1965-11-23
Hydro Centura Engineering Inc
Ejector valve

GB1045278A
(en)

1962-09-26
1966-10-12
Dowty Hydraulic Units Ltd
Power transmission

US3238724A
(en)

1965-01-07
1966-03-08
Cessna Aircraft Co
Control for hydrostatic transmissions

1967

1967-10-23
US
US3463034D
patent/US3463034A/en
not_active
Expired – Lifetime

1968

1968-04-22
FR
FR1584162D
patent/FR1584162A/fr
not_active
Expired

1968-09-11
GB
GB4313468A
patent/GB1246119A/en
not_active
Expired

1968-09-20
SE
SE1272568A
patent/SE342586B/xx
unknown

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR2499657A1
(en)

1981-02-06
1982-08-13
Alfa Romeo Spa

CONTINUOUS AUTOMATIC SPEED CHANGE FOR MOTOR VEHICLES

Also Published As

Publication number
Publication date

SE342586B
(en)

1972-02-14

DE1780582A1
(en)

1971-05-13

DE1780582B2
(en)

1976-05-26

FR1584162A
(en)

1969-12-12

US3463034A
(en)

1969-08-26

Información de contacto