US1891340A - System for reducing shocks - Google Patents

System for reducing shocks Download PDF

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Publication number
US1891340A
US1891340A US440705A US44070530A US1891340A US 1891340 A US1891340 A US 1891340A US 440705 A US440705 A US 440705A US 44070530 A US44070530 A US 44070530A US 1891340 A US1891340 A US 1891340A
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US
United States
Prior art keywords
cylinder
shocks
cylinders
spring
piston
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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
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US440705A
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English (en)
Inventor
Ammirandoli David
Baldi Cino
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Individual
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Individual
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Publication date
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Publication of US1891340A publication Critical patent/US1891340A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/46—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
    • B60G11/56—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also fluid springs
    • B60G11/58—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also fluid springs arranged coaxially

Definitions

  • Another characteristic feature is that the weight having to be sustained by the spring is always comparatively greater than that of the body and that this increase is never brought to bear upon the body.
  • Figure 2 shows a further form of the invention also provided with a helical spring
  • Figure 3 shows another form of the invention in the case of a semi-elliptical spring.
  • a second cylinder fintegral with and of the'same cross section as the cylinder bin this casehas a base g.
  • a fluid tight piston h which is connected by the rod 0' to a point of 'supp0rt'.k of the apparatus, where the shocks occur.
  • the rod z' slides within the fluid tight guide L-.
  • the ends of a helical spring 222- bear upon c' and h.
  • Two conduits n make communication between the two cylinders.
  • l '7 Another constructional form of the invention which greatly simplifies the apparatus is shown in Fig. 2. It will be seen that the conduits n and n have been eliminated by placing the two cylinders in direct communication. The possibility of the volumes 0- and -0 being varied isobtained by making' the two cylinders-72- and f of different section.
  • FIG. 3 Another form of theinvention operating in similar manner and adapted for semi-elliptical springs, is shown in Fig. 3.
  • the first receiver b is divided into two parts of equal section; for simplicity the same reference letters have been adopted to denote the corresponding parts.
  • These two cylinders are rigidly connected either together or to the second cylinder f by conduits
  • the central support ofthe semi-elliptical spring mand the bearing or support k. (which receives the shocks) are connected by the rod z' to the piston h while the two ends of the spring are connected to the bases 0 of the cylin-L-
  • the operation of the apparatus will now be illustrated with respect to the various constructional forms illustrated.
  • the two cylinders o the ends. thereof as follows the pressure .4, be enabled to re-descend immediately.
  • the pressure bearing upon 0- is equal to the weight of the body; moreover, -0 being rigidly connected to g-- has also to sustain the pressure of the oil on g: therefore the pressure bearing on c will equal the pressure of the body plus the pressure bearing upon Upon --72/ will be exerted the reaction from below against the weight of the body, as well as the same pressure as that pressure upon g and also directed from below.
  • The'volume of the oil in the cylinders -b and f will depend .in a state of equilibrium on the reaction of the spring against the pressures occasioned by the weight of the body.
  • ⁇ Vhen -Zc-- transmits a vertical shock to k the spring will tend to become compressed, allowing II/ to rise; the volume 0' will increase, drawing oil from the cylinder b, and permitting 0 to rise.
  • the base g will also rise tending to diminish the volume 0 but not to the same extent as it tends to increase through the displacement of h.
  • g which is integral with c will rise less than h because cbeing located at the opposite end of the spring and the shock under examination being capable of influencing the resiliency of the latter cannot on moving but follow the movements of h at a lessened speed.
  • the sections of both cylinders are equal g, more precisely, will rise to half the extent to which -krises. If h descends less than it has risen -a then rises to the extent of the difference.
  • Subsidiary springs adapted to be brought into operation according to the load may be provided and the relative diameters of the cylinders may be varied according to the employment of the apparatus. Valves may also be provided if desirable.
  • Apparatus for reducing and eliminating shocks comprising a cylindrical casing divided into separate chambers with intercommunicating conduits, a piston for each chamber, a resilient member supporting the casing the liquid therein, a resilient support carried' by the intermediate piston and connected with the casing to support the latter, and a piston for each of the other cylinders operating'in a direction opposite to that of the first pistonand being supported on the liquid, whereby movement of any piston causes a flow of liquid between the cylinders to transmit the movement through the resilient means to the casing.
  • a hydraulic shock absorber for yieldingly connecting two parts of a mechanical device subjected to shocks comprising aresilient member connected to that part of said device directly subjected to said shocks and having its axis so arranged as to take the full force of said shocks, a cylinder supported from said part of the device and containing a hydraulic fluid, a piston in saidcylinder connected to and supporting the other part of said device, the axis of said cylinder being in the same vertical plane as the axis of said resilient member, and means operating with said fluid to cause the movement of said resilient member under the force of said shocks to produce relative movement between said piston and cylinder.
  • a hydraulic shock absorber for yieldingly connecting the body of a movable device subjected to shocks to its under carriage, comprising a spring connected to said under carriage and having its axis normal to the path of movement of said device whereby said spring takes the full force of said shocks, a cylinder supported from said under carriage and containing a hydraulic fluid, a piston in said cylinder, the axes of said cylinder and spring being vertical to the same horizontal plane and means co-operating with said fluid tocause the movement of said spring under the force of said shocks to produce relative movement between said cylinder and piston.
  • a hydraulic'shock absorber for yieldingly connecting the body of a vehicle to its under carriage, comprising a vertical casing having a cylinder in the upper and lower ends thereof, a spring in the cylinder at the lower end of said casing having its axis normal to the path of movement of said vehicle, a piston in the cylinder at the upper end of said casing connected to and supporting said body, the axis of said last named cylinder being coincident to that of said spring, and means for connecting said casing to said under carriage, said cylinders being in communication with each other whereby movement of said spring causes a flow of fluid from one cylinder to the other and a consequent relative movement between said piston and said upper cylinder.
  • a hydraulic shock absorber for yieldingly connecting two parts of a mechanical device subjected to shocks comprising a resilient member connected to that part of said device directly subjected to said shocks and having its axis so arranged as to take the full force of said shocks, a cylinder supported from said part of the device and containing a hydraulic fluid, a piston in said cylinder connected to and supporting the other part of said device, the axes of said cylinder and resilient member being vertical to the same horizontal plane, and means operating with said fluid to cause the movement of said resilient member under the force of said shocks to produce relative movement between said piston and cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
US440705A 1929-04-11 1930-04-01 System for reducing shocks Expired - Lifetime US1891340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT352497X 1929-04-11

Publications (1)

Publication Number Publication Date
US1891340A true US1891340A (en) 1932-12-20

Family

ID=11241183

Family Applications (1)

Application Number Title Priority Date Filing Date
US440705A Expired - Lifetime US1891340A (en) 1929-04-11 1930-04-01 System for reducing shocks

Country Status (5)

Country Link
US (1) US1891340A (enrdf_load_stackoverflow)
BE (1) BE369139A (enrdf_load_stackoverflow)
DE (1) DE605668C (enrdf_load_stackoverflow)
FR (1) FR693531A (enrdf_load_stackoverflow)
GB (1) GB352497A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022060A (en) * 1957-11-06 1962-02-20 Fred E Cook Shock absorber for road graders
US4136829A (en) * 1976-03-04 1979-01-30 Mitsuhiro Kanao Needle nozzle having a valve
US4334437A (en) * 1978-10-25 1982-06-15 Tetra Pak International Ab Arrangement for the compensation of inertia forces in the reciprocating driving of a machine element

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928932C (de) * 1952-11-22 1955-06-13 Daimler Benz Ag Abfederung eines Fahrzeugaufbaus
EP0015378B1 (de) * 1979-03-01 1984-04-25 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Schwingungsisolator
DE3742599A1 (de) * 1987-12-16 1989-07-06 Bayerische Motoren Werke Ag Einrichtung zur hoehenverstellung eines fahrzeugrades
CN104773045B (zh) * 2015-04-27 2017-11-14 席玉林 组合弹簧补偿悬挂装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022060A (en) * 1957-11-06 1962-02-20 Fred E Cook Shock absorber for road graders
US4136829A (en) * 1976-03-04 1979-01-30 Mitsuhiro Kanao Needle nozzle having a valve
US4334437A (en) * 1978-10-25 1982-06-15 Tetra Pak International Ab Arrangement for the compensation of inertia forces in the reciprocating driving of a machine element

Also Published As

Publication number Publication date
DE605668C (de) 1934-11-15
BE369139A (enrdf_load_stackoverflow)
GB352497A (en) 1931-07-08
FR693531A (fr) 1930-11-21

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