US1340823A - Balancing of engines - Google Patents

Balancing of engines Download PDF

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Publication number
US1340823A
US1340823A US373425A US37342520A US1340823A US 1340823 A US1340823 A US 1340823A US 373425 A US373425 A US 373425A US 37342520 A US37342520 A US 37342520A US 1340823 A US1340823 A US 1340823A
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US
United States
Prior art keywords
crank
balance
balancing
engines
weight
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.)
Expired - Lifetime
Application number
US373425A
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English (en)
Inventor
Butler Leonard Frederic George
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.)
COSMOS ENGINEERING Co Ltd
Original Assignee
COSMOS ENGINEERING Co Ltd
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 COSMOS ENGINEERING Co Ltd filed Critical COSMOS ENGINEERING Co Ltd
Priority to US373425A priority Critical patent/US1340823A/en
Application granted granted Critical
Publication of US1340823A publication Critical patent/US1340823A/en
Priority to DE1920338367D priority patent/DE338367C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2173—Cranks and wrist pins
    • Y10T74/2183—Counterbalanced

Definitions

  • This invention is for improvements in or relating to the balancing of engines, and while not limited to radial engines having several cylinders, is nevertheless more par- As is well known the total load uponengine crank-pins due to inertia and centrifu- Specification of Letters Patent.
  • crank-shaft is shown at A, with cranks B and a crank pin C,
  • the main connectingrod D is mounted at its end upon the crankpin 0 and has additional wrist-pins Eflto which the auxiliary rods F are connected.
  • sions G .of the usual type are illustrated as the forces set up during rotation of the engal force, varies considerably both during the cycle of rotation and during changes in the circumstances under which the engine is working. It is a difficult matter to counter-' balance these forces exactly and attempts to do so by balance-weights fixed to the crankshaft result in many cases in excessive bearing-loads being set up upon the crank-pin. To provide for these forces, in some cases the crank-pin length has been increased, but this is not entirely satisfactory since the longer the pin, the greater is its liability to bend.
  • the present invention therefore has for one of its objects to provide a method of balancing engines which shall not necessarily increase the load upon the crank-pin, and the primary feature of the invention consists in the combination with an engineconnecting-rod-end of a balance-weight rotatably mounted on the connectmg-rod-end, or a part rigid therewith, and attached to the crank-shaft to rotate therewith by a connection permitting of free movements toward and from the connectingrrod-end.
  • Figure 1 is a side elevation, partly in seetion, of a portion of the engine mechamsm
  • FIG. 2 is a front elevat'on of a balance- Like letters 'of reference indicate like parts throughout the drawings. 1 V
  • balance-weights H are rotatably mounted at one end upon extensions D on- Rigid balance-weights or balancing exten essarily putting more load upon the crank- 'a balance-weight H is arranged adjacent one.
  • This connection comprises a bolt J with a nut J and collar. J the latter being square on the outside and being received in an elongated slot H in the balance-weight.
  • a reciprocating engine the combination of a piston, a crank-shaft, a balance- Weight fixed on said crank-shaft, a connecting rod coupling said piston to said crankshaft, a balance-weight rotatively mounted on the end of the connecting-rod and situated adjacent said fixed balance-weight, and a pin-and-slot connection whereof the slot is radial to the crank-shaft between said two balance-weights.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
US373425A 1919-03-12 1920-04-12 Balancing of engines Expired - Lifetime US1340823A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US373425A US1340823A (en) 1919-03-12 1920-04-12 Balancing of engines
DE1920338367D DE338367C (de) 1919-03-12 1920-08-04 Einrichtung zum Massenausgleich bei Kolbenmaschinen mit Kurbelgetriebe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB338367X 1919-03-12
US373425A US1340823A (en) 1919-03-12 1920-04-12 Balancing of engines

Publications (1)

Publication Number Publication Date
US1340823A true US1340823A (en) 1920-05-18

Family

ID=33477780

Family Applications (1)

Application Number Title Priority Date Filing Date
US373425A Expired - Lifetime US1340823A (en) 1919-03-12 1920-04-12 Balancing of engines

Country Status (2)

Country Link
US (1) US1340823A (de)
DE (1) DE338367C (de)

Also Published As

Publication number Publication date
DE338367C (de) 1921-06-18

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