US3044267A - Throttle control - Google Patents

Throttle control Download PDF

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Publication number
US3044267A
US3044267A US1007A US100760A US3044267A US 3044267 A US3044267 A US 3044267A US 1007 A US1007 A US 1007A US 100760 A US100760 A US 100760A US 3044267 A US3044267 A US 3044267A
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US
United States
Prior art keywords
slave
cylinder
piston
throttle
hydraulic
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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 - Lifetime
Application number
US1007A
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English (en)
Inventor
James M Hicks
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Individual
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Individual
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Priority to US1007A priority Critical patent/US3044267A/en
Priority to BE612066A priority patent/BE612066A/fr
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Publication of US3044267A publication Critical patent/US3044267A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/003—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors with multiple outputs

Definitions

  • This invention relates in general to a manually-operated hydraulic system and more particularly to such a system incorporating one master cylinder and two slave cylinders, the slave cylinders being under difierential spring compression tension whereby the piston of one is moved before the piston of the second.
  • Still another object of this invention is to provide a structure of the type described above designed to afford control, by means of a single manuallyoperated lever, over the gear-engaging and throttle functions of an engine, a differential tension arrangement on the slave cylinders providing means for controlling each of these functions sequentially.
  • FIGURE 1 shows the relationship of the master and the two slave cylinders
  • FIGURE 2 is an enlarged side elevation, partly in section, showing the master cylinder
  • FIGURE 3 is an enlarged side elevational view, partly in section, showing one of the two identical slave cylinders with part of its tension-controlling spring broken away.
  • this invention comprises a device wherein a single master cylinder drives more than a single slave cylinder by means of fluid pressure applied through connecting hydraulic lines.
  • This invention incorporates improvements in both the slave cylinders and the master cylinder, making possible the control, through a single master cylinder, of two separate functions, as, a gearengaging function and a fuel-supplying function.
  • Means are provided for causing the individual slave cylinders to work sequentially, including resilient means exerting diiferent compression forces secured to one end of the exterior of each of the slave cylinders and at the other .end to each exposed or polished end of the piston rodof the slave cylinder, the resilient means tending to maintain the polished end of each slave piston rod in a near fully telescoped or retracted position.
  • the master hydraulic cylinder has a piston slidably mounted therein and means'on one side of said piston at one end of said cylinder for transmitting fluid pressure therefrom.
  • the cylinder also has an orifice at a point adjacent one end thereof in the cylindrical surface thereof providing communication with the interior of the cylinder.
  • the orifice is in an area normally occupied by hydraulic fluid when the polished end of the piston rod is exposed to a substantial extent.
  • Means are also provided for conveying fluid to the orifice, thus to provide a continuous supply of fluid, as needed.
  • the supply means comprises a chamber formed by a sleeve which may be mounted about the cylinder, both ends of which are in liquid-tight engagement with the outer wall of the cylinder itself, thus to provide a reservoir between the internal surface of the housing and the external surface of the cylinder.
  • the cylinder 12 is provided with an O-ring 24 just ahead of orifice 26, thus to ensure that when the piston head has passed the orifice, a tight seal will be maintained and all pressure transmitted in the direction of fitting 28 and thence through line 30.
  • the cylinder has a pair of flanges at either end, 32 and 34, :and O-rings 36 and 38 serving as sealing means.
  • T 48 which provides means for subdividing the hydraulic line so as to provide at least two separate branches 50.
  • Each of the branches terminates in structurally similar slave cylinder elements, generally 52, which can be caused to operate slightly differently.
  • Each of these incorporates a suitable fitting 54 which secures each hydraulic line 50 to a suitable slave cylinder 56.
  • a substantial portion of the exterior of the slave cylinder is threaded, as at 58, and a ball receptacle 60 is adjustably mounted thereon.
  • the clip is of molded plastic and has a hole 74 therein and a pivoted manually operatedclip element 76 which is designedto exert pressure on one side of any pm which is passed through hole 74.
  • the device is especially designed for use with a pontoon-mounted structure having an outboard motor of the type described in US. Patent 2,840,832, the bracket 22 being designed for mounting on the handle bar thereof, as shown in FIGURE 1. It may be used with any outboard motor-driven boat and, for that matter, maybe used in any environment where it is desired to perform two functions sequentially by the application of unidirectional hydraulic pressure, as will be seen hereinafter. In most applications, the device will be used in.the control of a motor where it is desired first to engage a clutch or gears and thereafter supply fuel in varying quantities.
  • the two devices generally designated 52 are secured to the motor by means of a clamp and bracket mating with the ball receptacle 60.
  • the hole 74 in one of the clips 70 should be adjacent and suitable for registry with a pin controlling the clutch or gearshift arrangement of an outboard motor.
  • the second of the slave 3 cylinder devices 52 is similarly mounted in such a'fashion that the hole 74 may receive a pin mounted on the engine throttle. Hence, one slave cylinder will be capable of placing the motor in gear while "the second will be capable of regulating the quantity of fuel fed to the motor.
  • each of elements 52 must be adjusted as shown in FIGURE 1 so that when fluid pressure is applied through li'nefiilf, the slave piston of the lowermost element 52' will be moved first so that its slave piston (controlling the pin which engages the motor into forward gear) is moved first and the throttle slave piston thereafter moved.
  • Gross adjustment of each of the devices 52 may be provided by screwing the ball receptacles 60 while fine adjustment placing lesser or greater tension on the compression springs 62 is pro- 1 vided by turning clip 70 so as to move flange support. 61 7 toward or away from the hexagonal gland 64.
  • the shift slave assembly 52' will be adjusted so that a lesser amount of pressure is required to move its piston than is necessary to move the piston of the throttle slave assembly 52.
  • Suitable hydraulic fluids are Standard-Chevron Torque Fluid No. 1type A, Automatic Transmission, and Union Oil Turnaco, No. 200.
  • each of springs 62 and 17 cuts the supply of fuel and returnsithe motor to neutral gear.
  • This dead man feature, insofaras spring 17 and one of springs 62 are concerned, may be dispensed with in certain applications.
  • the orifice 26 is in the form of a slot in a plane perpendicular to'that of the drawings rather than exposed end of the piston rod of a slave cylinder and tending to maintain said exposed end of said slave piston rod in a telescoped position relative to said slave cylinder; and means on the exposed end of each of said slave piston rods for securing said exposed end to an element to be moved.
  • the improvements comprising: resilient-means secured at one end thereof to the exterior of each of said slave cylinders, the means of securing said resilient means comprising a'support threaded to the exterior of each of said slave cylinders, each of said resilient means being secured at the opposite end thereof to a similar supporting element fixedly secured to an exposed end of each of said slave-piston rods; a ball receptacle. threaded about each of said slave cylinders; and
  • one slave cylinder device 52 in itself serving as means for controlling both the gear-engaging and throttle function.
  • the clip is modified, if necessary, to engageja" rackgear which in turn controls-a spur'gear; j
  • This structure is conventional in outboard motors of. the type aforeslave piston rods whereby to provide means for engagmg the element to be moved. 7

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
US1007A 1960-01-07 1960-01-07 Throttle control Expired - Lifetime US3044267A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US1007A US3044267A (en) 1960-01-07 1960-01-07 Throttle control
BE612066A BE612066A (fr) 1960-01-07 1961-12-28 Système hydraulique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1007A US3044267A (en) 1960-01-07 1960-01-07 Throttle control

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US3044267A true US3044267A (en) 1962-07-17

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Application Number Title Priority Date Filing Date
US1007A Expired - Lifetime US3044267A (en) 1960-01-07 1960-01-07 Throttle control

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BE (1) BE612066A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248882A (en) * 1960-10-18 1966-05-03 Hartford Machine Screw Co Throttle control and actuator
US3333418A (en) * 1965-06-10 1967-08-01 William E Harvey Remote control device
US3465521A (en) * 1966-11-29 1969-09-09 Linde Intern Ab Power transmission controlling devices
JPS4715897U (fr) * 1971-03-22 1972-10-24
US3885393A (en) * 1973-09-07 1975-05-27 Us Energy Hydraulic load matching device
US4180237A (en) * 1977-06-06 1979-12-25 Wolf Clyde C Hydraulic valve system
US4827720A (en) * 1980-08-14 1989-05-09 Lucas Industries Limited Master cylinders with rear exterior shell forming reservoir passage

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1454397A (en) * 1920-11-19 1923-05-08 William W Macdonald Hydraulic brake
US1846717A (en) * 1929-11-27 1932-02-23 Nora A Grace Damper adjusting attachment for oil burners
US2051150A (en) * 1935-12-10 1936-08-18 Charles R North Power brake device
US2153637A (en) * 1938-03-30 1939-04-11 Edward C Niven Multiple damper control for boilers and the like
US2264675A (en) * 1936-05-07 1941-12-02 Eclipse Aviat Corp Hydraulic actuating means
US2359949A (en) * 1942-06-23 1944-10-10 Adel Prec Products Corp Hydraulic remote control system
US2389654A (en) * 1942-06-23 1945-11-27 Adel Prec Products Corp Hydraulic motor unit
US2453929A (en) * 1947-03-11 1948-11-16 Alvin F O'harah Hydraulic pump
US2735255A (en) * 1956-02-21 Hydraulic tree shaker

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735255A (en) * 1956-02-21 Hydraulic tree shaker
US1454397A (en) * 1920-11-19 1923-05-08 William W Macdonald Hydraulic brake
US1846717A (en) * 1929-11-27 1932-02-23 Nora A Grace Damper adjusting attachment for oil burners
US2051150A (en) * 1935-12-10 1936-08-18 Charles R North Power brake device
US2264675A (en) * 1936-05-07 1941-12-02 Eclipse Aviat Corp Hydraulic actuating means
US2153637A (en) * 1938-03-30 1939-04-11 Edward C Niven Multiple damper control for boilers and the like
US2359949A (en) * 1942-06-23 1944-10-10 Adel Prec Products Corp Hydraulic remote control system
US2389654A (en) * 1942-06-23 1945-11-27 Adel Prec Products Corp Hydraulic motor unit
US2453929A (en) * 1947-03-11 1948-11-16 Alvin F O'harah Hydraulic pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248882A (en) * 1960-10-18 1966-05-03 Hartford Machine Screw Co Throttle control and actuator
US3333418A (en) * 1965-06-10 1967-08-01 William E Harvey Remote control device
US3465521A (en) * 1966-11-29 1969-09-09 Linde Intern Ab Power transmission controlling devices
JPS4715897U (fr) * 1971-03-22 1972-10-24
JPS5120394Y2 (fr) * 1971-03-22 1976-05-27
US3885393A (en) * 1973-09-07 1975-05-27 Us Energy Hydraulic load matching device
US4180237A (en) * 1977-06-06 1979-12-25 Wolf Clyde C Hydraulic valve system
US4827720A (en) * 1980-08-14 1989-05-09 Lucas Industries Limited Master cylinders with rear exterior shell forming reservoir passage

Also Published As

Publication number Publication date
BE612066A (fr) 1962-04-16

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