US1339760A - Internal-combustion engine - Google Patents

Internal-combustion engine Download PDF

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Publication number
US1339760A
US1339760A US265757A US26575718A US1339760A US 1339760 A US1339760 A US 1339760A US 265757 A US265757 A US 265757A US 26575718 A US26575718 A US 26575718A US 1339760 A US1339760 A US 1339760A
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US
United States
Prior art keywords
piston
working piston
pump piston
working
pump
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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
US265757A
Inventor
Houston Percival Turner
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.)
ALPHAERO ENGINES (FOREIGN PATENTS) Ltd
ALPHAERO ENGINES FOREIGN PATEN
Original Assignee
ALPHAERO ENGINES FOREIGN PATEN
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Application filed by ALPHAERO ENGINES FOREIGN PATEN filed Critical ALPHAERO ENGINES FOREIGN PATEN
Priority to US265757A priority Critical patent/US1339760A/en
Application granted granted Critical
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L5/00—Slide valve-gear or valve-arrangements
    • F01L5/04—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L5/06—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
    • F01L5/08—Arrangements with several movements or several valves, e.g. one valve inside the other
    • F01L5/10—Arrangements with several movements or several valves, e.g. one valve inside the other with reciprocating and other movements of the same valve
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/24—Connection to driving members designed to give the piston some rotary movement about its axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Definitions

  • This invention relates to improvements in two-stroke-cycle internal combustion engines of the kind described in British Speci fication N0. 8135 of 1917, in which engines the piston uncovers ports in the cylinder by both a turning and a reciprocating movement.
  • the engagement between the gudgeonpin for the small end of the connecting-rod and the piston is characterized by the bearings for the ends 01 the gudgeonpin being so mounted in the piston that although they reciprocate as one with it the piston can turn relatively to the said bearings; an extension being provided on the small end of the connecting-rod to operatively connect with the piston and eiiect the turning movement of the latter.
  • the piston hereinbefore referred to is the working piston, and an annular pump piston was described as connected rigidly to the lower end of the skirt of the working piston.
  • the annular pump piston is rigidly connected to the gudgeon-pin bearings, so that while both the working piston and the pump piston reciprocate together, only the working piston is given a turning movement.
  • the pump piston can be mounted eccentrically of the working piston, whereby it is possible to bring the centers of the cylinders closer together in two cylinder engines.
  • Figure 1 is a longitudinal section through the cylinders
  • Fig. 2 is a section on the line 2, 1, and
  • Figs. 3, 1 and 5 are longitudinal sections through a portion of a cylinder, and show three methods of connecting the working piston to the pump piston, so that the former can revolve relatively to the latter.
  • A are cylinders
  • B are working pistons
  • C are pump pistons.
  • the gudgeon-pin D for the con.- necting rod E is carried in bearings F which are formed on a ring G solid with the pump piston C and raised-on the face thereof.
  • the working piston B is mounted so as to he tree to rotate on the ring G, and has a flange H formed on the end of its skirt.
  • An externally screwed nut I surrounds the working piston above the flange H and is adapted to be screwed into a ring J former solid with the face of the pump piston C.
  • the nut I is not screwed hard down upon the flange H and thus the working piston can turn relatively to the pump piston.
  • the connecting rod E can be provided with. an extension K operatively connected with the working piston B for imparting a turning movement thereto.
  • the extension K projects along a line parallel to the connecting rod E but to one side thereof.
  • This extension is cylindrical and fits a correspondingly shaped orifice in av block which comprises a ball K rotatably mounted in a split sliding bearing K
  • the sliding bearing K is carried in a pocket K formed on the inner wall of the working piston.
  • the block has sliding and turning engagement with the extension, and also has in the transverse direction sliding and turning engagement in the pocket.
  • a union nut L surrounds the working piston above the flange H and is adapted to screw on to a circular boss M raised on the face of the pump piston, and thus connects the two pistons.
  • the flange H is recessed below the face of the pump piston, and a ring N surrounding the working piston above the-flange is connected to the pump piston by bolts 0.
  • the pump piston C is bored to allow the working piston B to be passed upwardly through it so that the upper surface of the flange H engages the under surface of the pump piston.
  • the ring G is not (as in the constructions hereinbefore described) solid with the pump piston but it is provided with a screw-threadedflange P at its lower end which is adapted to screw into the pump piston up against a shoulder in the same and thus secure the flange of the working piston in position while leaving it free to rotate.
  • vand also has in the transverse direction sliding and turning engagement in a pocket in the working piston for effecting the turning movement of the and a pump piston rigidly connected to the gudgeon pin bearings.

Description

P. T. HOUSTON. INTERNAL COMBUSTION ENGINE.
APPLICATION FILED DEC-7.1918. I
I Patented May 11, 1920.
2 SHEETSSHEET I.
P. T. HOUSTON. INTERNAL COMBUSTiON ENGINE.
APPLICATION ,HLED DEC. 7, 1918.
1,339,760; Patented May 11, 1920.
2 SHEETS-SHEET 2.
PERCIVAL TURNER HOUSTON, OF LONDON, ENGLAND, ASSIGNOR TO ALPHAERO ENGINES (FOREIGN PATENTS) LIMITED, OF LONDON,
ENGLAND.
INTERNAL-COMBUSTION ENGINE.
Be it known that I, Pnnorvan TURNER IIOUSTON, a subject of the King of England, residing in London, England, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the following is a specification.
This invention relates to improvements in two-stroke-cycle internal combustion engines of the kind described in British Speci fication N0. 8135 of 1917, in which engines the piston uncovers ports in the cylinder by both a turning and a reciprocating movement. According to the said prior specification the engagement between the gudgeonpin for the small end of the connecting-rod and the piston is characterized by the bearings for the ends 01 the gudgeonpin being so mounted in the piston that although they reciprocate as one with it the piston can turn relatively to the said bearings; an extension being provided on the small end of the connecting-rod to operatively connect with the piston and eiiect the turning movement of the latter. The piston hereinbefore referred to is the working piston, and an annular pump piston was described as connected rigidly to the lower end of the skirt of the working piston.
According to the present invention the annular pump piston is rigidly connected to the gudgeon-pin bearings, so that while both the working piston and the pump piston reciprocate together, only the working piston is given a turning movement. The pump piston can be mounted eccentrically of the working piston, whereby it is possible to bring the centers of the cylinders closer together in two cylinder engines.
In the accompanying drawing which illustrates four methods of carrying out the invention as applied to a two cylinder engine with eceentricallydisposed working pistons and pump pistons,
Figure 1 is a longitudinal section through the cylinders;
Fig. 2 is a section on the line 2, 1, and
Figs. 3, 1 and 5 are longitudinal sections through a portion of a cylinder, and show three methods of connecting the working piston to the pump piston, so that the former can revolve relatively to the latter.
Throughout the drawings like reference letters indicate like parts.
2 in Fig.
Specification of Letters Patent.
Patented May 11, 1920.
Application filed December '7, 1918. Serial No. 265,757.
Referring to Figs. 1 and 2, A are cylinders, B are working pistons, and C are pump pistons. The gudgeon-pin D for the con.- necting rod E is carried in bearings F which are formed on a ring G solid with the pump piston C and raised-on the face thereof. The working piston B is mounted so as to he tree to rotate on the ring G, and has a flange H formed on the end of its skirt. An externally screwed nut I surrounds the working piston above the flange H and is adapted to be screwed into a ring J former solid with the face of the pump piston C. The nut I is not screwed hard down upon the flange H and thus the working piston can turn relatively to the pump piston. As described in the prior specification hereinbefore referred to, the connecting rod E can be provided with. an extension K operatively connected with the working piston B for imparting a turning movement thereto. In one of the constructions described in the prior specification, the extension K projects along a line parallel to the connecting rod E but to one side thereof. This extension is cylindrical and fits a correspondingly shaped orifice in av block which comprises a ball K rotatably mounted in a split sliding bearing K The sliding bearing K is carried in a pocket K formed on the inner wall of the working piston. Thus the block has sliding and turning engagement with the extension, and also has in the transverse direction sliding and turning engagement in the pocket. It will be obvious that according to the present invention, the pump piston C, while reciprocating with the working piston B, does not turn with the latter, as the pump piston is rigidly connected to the gudgeon-pin bearings F.
In the modification shown in Fig. 3, a union nut L surrounds the working piston above the flange H and is adapted to screw on to a circular boss M raised on the face of the pump piston, and thus connects the two pistons.
In the construction shown in Fig. 4;, the flange H is recessed below the face of the pump piston, and a ring N surrounding the working piston above the-flange is connected to the pump piston by bolts 0.
According to the construction shown in Fig. 5, the pump piston C is bored to allow the working piston B to be passed upwardly through it so that the upper surface of the flange H engages the under surface of the pump piston. The ring G is not (as in the constructions hereinbefore described) solid with the pump piston but it is provided with a screw-threadedflange P at its lower end which is adapted to screw into the pump piston up against a shoulder in the same and thus secure the flange of the working piston in position while leaving it free to rotate.
hat I claim as my invention and desire to secure by Letters Patent is 1. In an internal combustion engine in which the working piston uncovers ports in the cylinder by both a turning and a reciprocating movement of the whole piston, the combination of a gudgeon pin; bearings for said pin, the working piston being aXi ally rotatable on said bearings but reciprocatory therewith; a connecting rod on said pin, said rod having an extension; a block which has sliding and turning engagement latter;
with the extension, vand also has in the transverse direction sliding and turning engagement in a pocket in the working piston for effecting the turning movement of the and a pump piston rigidly connected to the gudgeon pin bearings.
2. In an internal combustion engine in which the working piston uncovers ports in the cylinder by both a turning and a reciproeating movement of the Whole piston, the combination of a gudgeon pin; bearings for said pin; a pump piston rigidly connected to said bearings; a flange on the working piston and adapted to nter a seating in the pump piston; and a ring to connect the flange rotatably to the pump piston so that both pistons reciprocate together.
3. In an internal combustion engine in which the working piston uncovers ports in the cylinder by both a turning and a recipro cating movement of the Whole piston; the combination of a gudgeon pin; bearings for said pin, the working piston being axially rotatable on said bearings but reciprocatory therewith; an external flange on the working piston; a pump piston adapted to encircle the working piston and having a seat ing for the said flange; and a ring to connect the flange rotatably to the pump piston so that both pistons reciprocate together, said ring engaging the pump piston by screw-threaded means.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
N. Roy BECKER, EDMUND WVALTER CHURCH.
US265757A 1918-12-07 1918-12-07 Internal-combustion engine Expired - Lifetime US1339760A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819936A (en) * 1954-08-03 1958-01-14 Fried Krupp Motoren Und Kraftw Piston, especially for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819936A (en) * 1954-08-03 1958-01-14 Fried Krupp Motoren Und Kraftw Piston, especially for internal combustion engines

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