US1204520A - Internal-combustion engine. - Google Patents

Internal-combustion engine. Download PDF

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Publication number
US1204520A
US1204520A US1914854289A US1204520A US 1204520 A US1204520 A US 1204520A US 1914854289 A US1914854289 A US 1914854289A US 1204520 A US1204520 A US 1204520A
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US
United States
Prior art keywords
valve
piston
sleeve
stem
cylinder
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
Inventor
Charles S Tuttle
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.)
Navistar Inc
Original Assignee
Int Harvester Corp
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 Int Harvester Corp filed Critical Int Harvester Corp
Priority to US1914854289 priority Critical patent/US1204520A/en
Application granted granted Critical
Publication of US1204520A publication Critical patent/US1204520A/en
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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • F16K17/19—Equalising valves predominantly for tanks
    • F16K17/196—Equalising valves predominantly for tanks spring-loaded
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/785—With retarder or dashpot
    • Y10T137/7852—End of valve moves inside dashpot chamber
    • Y10T137/7853—Enlarged piston on end of valve stem

Definitions

  • the object of this invention is to, insureperfect seating of a valve under all conditions of operation. This object is accomplished by providing a valve with guiding means therefor, there being a loose connection between said valve and guiding means to permit of a limited free movement of said valve to meet the desired end.
  • the internal combustion engine 10 includes a cylinder 11 having a cylinder head 12 in which are mounted an inlet valve 13 and an exhaust valve 14, the latter being actuated from a moving part of the engine through rod 15, rocker arm 16 having a set screw 17 in the end thereof which engages the stem 18 of the exhaust valve.
  • the rocker arm 16 is pivotally mounted on a bracket 19 formed integrally with a cylinder member 20. This cylinder member forms part of a cushioning device for preventing the inlet valve 13 from seating with such force as to cause breakage of said valve.
  • This cushioning device includes in addition to the cylinder 20, a piston 21 which is adapted to be reciprocated within the cylinder 20, said piston embracing a sleeve .22 which is threaded onto the stem 23 of the inlet valve 13.
  • the sleeve 22 has a flange 24 which engages an inner circular flange portion 25 of the piston, the valve 13, sleeve 22 and piston 21 being forced in one direction to accomplish the closing of the valve 13 by a coiled spring 26 surrounding the valve stem 23, and being interposed between the cylinder head 12 and the flange 24 of sleeve 22.
  • the valve 13 is opened by suction caused by the inhalation stroke of the main engine piston, the opening movement of the valve 13 being in opposition to the action of spring 26.
  • the sleeve 22 extends beyond the piston 21, and is engaged by a collar 27 which is held in engagement with the sleeve by a nut 28 secured to the valve stem 23, thus preventing any cramping between collar 27 and piston 21.
  • the cylinder is provided with a vent 31 controlled by a valve 32, the vent being located in one end of the cylinder 20 to vary the effective cushioning or retarding action of the closing movement of the valve 13.
  • the valve will be properly guided in its opening and closing movements, retarded in its closing movement to prevent breakage of the valve, and permitted to seat properly under all conditions of operation.
  • What I claim is 1.
  • a valve having a stem, relatively movable members for guiding said valve in its general line of movement, and a sleeve mounted on the stem of said valve, there being a loose connection between said sleeve and one of said relatively movable members for permitting said valve to seat properly.
  • a valve and a cushioning device therefor including a cylinder and a piston for operating therein, said piston being loosely connected to a portion of said valve to insure proper seating of said valve.
  • a valve and a cushioning device therefor including cooperating relatively movable members, one of said members being loosely connected to a portion of said valve to insure proper seating thereof.
  • a valve having a stem
  • a cushioning device for said valve including a cylinder and piston, a sleeve mounted on the stem of said valve and being loosely connected to said piston, a resilient member engaging said sleeve for closing said valve, and means for controlling the degree of cushioning of said valve.

Description

C. S. TUTTLE.
INTERNAL comsusnou ENGINE.
APPLICATION F ILED JULY 3!.1914.
Patented Nov. 14, 1916 III/V6735]? Zea fl iile m companying drawing, the single figure is a,
-an s'rA'rns PA NT OFFICE.
CHARLES S. TUTTLE OF MILWAUKEE, WISCONSIN, ASSIGNOR T0 INTERNATIONAL HARVESTER CORPORATION, A CORPORATION OF NEW JERSEY.
IN TERNAL-COMBUSTION ENGINE.
Specification of Letters Patent.
Patented Nov. 14, 1916.
Application filed July 31, 1914. Serial No. 854,289.
The object of this invention is to, insureperfect seating of a valve under all conditions of operation. This object is accomplished by providing a valve with guiding means therefor, there being a loose connection between said valve and guiding means to permit of a limited free movement of said valve to meet the desired end.
In the invention as illustrated on the acfragmentary sectional view of an internal combustion engine embodying my invention.
The various novel features of my invention will be apparent from the description and drawing, and will be particularly set forth in the appended claims.
The internal combustion engine 10 includes a cylinder 11 having a cylinder head 12 in which are mounted an inlet valve 13 and an exhaust valve 14, the latter being actuated from a moving part of the engine through rod 15, rocker arm 16 having a set screw 17 in the end thereof which engages the stem 18 of the exhaust valve. The rocker arm 16 is pivotally mounted on a bracket 19 formed integrally with a cylinder member 20. This cylinder member forms part of a cushioning device for preventing the inlet valve 13 from seating with such force as to cause breakage of said valve.
This cushioning device includes in addition to the cylinder 20, a piston 21 which is adapted to be reciprocated within the cylinder 20, said piston embracing a sleeve .22 which is threaded onto the stem 23 of the inlet valve 13. The sleeve 22 has a flange 24 which engages an inner circular flange portion 25 of the piston, the valve 13, sleeve 22 and piston 21 being forced in one direction to accomplish the closing of the valve 13 by a coiled spring 26 surrounding the valve stem 23, and being interposed between the cylinder head 12 and the flange 24 of sleeve 22. The valve 13 is opened by suction caused by the inhalation stroke of the main engine piston, the opening movement of the valve 13 being in opposition to the action of spring 26. The sleeve 22 extends beyond the piston 21, and is engaged by a collar 27 which is held in engagement with the sleeve by a nut 28 secured to the valve stem 23, thus preventing any cramping between collar 27 and piston 21.
There is a clearance space 29 between the piston or valve guiding member 21 and the sleeve 22 to insure the proper seating of the valve 13. If it were not for this loose conthe piston 21, which has a Working fit With the cylinder 20, the cylinder and piston being out of alinement slightly, proper seating of the valve 13 would not be accomplished. In other words one portion of the valve might engage a portion of its seat 30 while another portion of the valve would not. In addition to the great disadvantage of loss of compression the valve 13 would be cramped and possibly broken. However,by means of the loose connection. between the guiding piston 21 and the sleeve 22 secured to the valve stem, the valve will seat prop-' erly under all conditions. By means of extending the sleeve 22 beyond the piston to space the collar 27 from the piston, more .or less play is given between the piston and stem so that the parts can aline themselves without any cramping action. While the piston 21 acts to guide the valve 13 in its general line of movement the loose connection between the piston and valve stem will permit the proper seating of the valve. The cylinder is provided with a vent 31 controlled by a valve 32, the vent being located in one end of the cylinder 20 to vary the effective cushioning or retarding action of the closing movement of the valve 13.
By means of the arrangement of the valve mechanism, as above described, the valve will be properly guided in its opening and closing movements, retarded in its closing movement to prevent breakage of the valve, and permitted to seat properly under all conditions of operation.
There may be various modifications of the invention as here shown and described, and it is my intention to cover all such modifications which do not involve any departure from the spirit and scope of my invention as set forth in the appended claims.
What I claim is 1. In combination, a valve having a stem, relatively movable members for guiding said valve in its general line of movement, and a sleeve mounted on the stem of said valve, there being a loose connection between said sleeve and one of said relatively movable members for permitting said valve to seat properly.
2. In combination, a valve, and a cushioning device therefor including a cylinder and a piston for operating therein, said piston being loosely connected to a portion of said valve to insure proper seating of said valve.
3. In combination, a valve, and a cushioning device therefor including cooperating relatively movable members, one of said members being loosely connected to a portion of said valve to insure proper seating thereof. 7
at. In combination, a valve having a stem,
cooperating relatively movable members for guiding the general -line of movement of said valve, and a sleeve mounted on the stem of said valve and extending Within one of said relatively movable members, there being a clearance space between said sleeve and one of said relatively movable members to insure proper seating of said valve.
5. In combination, a valve having a stem, a cushioning device for said valve including a cylinder and piston, a sleeve mounted on the stem of said valve and being loosely connected to said piston, a resilient member engaging said sleeve for closing said valve, and means for controlling the degree of cushioning of said valve.
In testimony whereof I affix my signature, in the presence of tWo Witnesses.
CHARLES S. TUTTLE. Witnesses R. F. WEBER, L. B. SPERRY.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.
US1914854289 1914-07-31 1914-07-31 Internal-combustion engine. Expired - Lifetime US1204520A (en)

Priority Applications (1)

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US1914854289 US1204520A (en) 1914-07-31 1914-07-31 Internal-combustion engine.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044488A (en) * 1958-11-03 1962-07-17 Applic Et De Const Pour Materi Pressure-regulators for fluids
US4852852A (en) * 1987-05-23 1989-08-01 Hermann Henscheidt Maschinenfabrik Gmbh & Co. Hydraulic valve actuating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044488A (en) * 1958-11-03 1962-07-17 Applic Et De Const Pour Materi Pressure-regulators for fluids
US4852852A (en) * 1987-05-23 1989-08-01 Hermann Henscheidt Maschinenfabrik Gmbh & Co. Hydraulic valve actuating device

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