US1802330A - Valve mechanism - Google Patents

Valve mechanism Download PDF

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Publication number
US1802330A
US1802330A US365759A US36575929A US1802330A US 1802330 A US1802330 A US 1802330A US 365759 A US365759 A US 365759A US 36575929 A US36575929 A US 36575929A US 1802330 A US1802330 A US 1802330A
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United States
Prior art keywords
tappet
journals
slots
valve mechanism
tappets
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
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US365759A
Inventor
Joseph J Boland
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.)
Aeromarine Plane & Motor Compa
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Aeromarine Plane & Motor Compa
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Publication date
Application filed by Aeromarine Plane & Motor Compa filed Critical Aeromarine Plane & Motor Compa
Priority to US365759A priority Critical patent/US1802330A/en
Application granted granted Critical
Publication of US1802330A publication Critical patent/US1802330A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/14Tappets; Push rods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2105/00Valve arrangements comprising rollers
    • F01L2105/02Mounting of rollers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2101Cams
    • Y10T74/2107Follower

Description

April 23, 1931- J. J. BOLAND 1,802,330

I VALVE MECHANISM Original Filed May 24, 1929 INVEN TOR.

Jase Lfia/axm.

, B ATTORNEY.

Patented Apr. 28, 1931 atria e "a 12 4;.

JOSEPH J. BOLAND, OF KEYIPORT, NEV] JERSEY, ASSIGN'OR, BY MESNE ASSIGNMENTS, TO

AEROIVIARINE PLANE MOTOR 001113511? PORATION OF NEW YORK Y; INC, on KEYPORT, NEW JERSEY, Aconj VALVE MECHANISM Application filed May 24, 1929, Serial No. 365,759. Renewed February 25, 1931.

This invention relates in general. to valve mechanisms and more particularly to a type of valve actuating mechanism used in conjunction with an internal combustion engine.

An object of the invention is to provide a suitable and highly efficient valve actuating mechanism for such an engine that is simple and economical of manufacture and that can readily be assembled and disassembled without the use of special tools.

A further object of the invention is to provide a new and novel valve mechanism in which the operating parts are securely held in effective relation without the use of such frictionally engaged holding or locking means as are usually resorted for this purpose.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and a careful consideration of the following particular description and claims of one form of mechanism embodying my invention.

In the drawings:

Figure 1 is a fragmentary longitudinal section of a crankshaft showing the present invention in conjunction therewith.

Figure 2 is a diass'embled perspective V ew showing some of the details of the invention.

Figure 3 is an assembled view of the parts shown in Fig. 2. I

With referenceto the drawings, desigmiles a crankshaft on which is mounted for rotation relatively thereto a valve actuating cam member 11.

In an opening in the engine casing 12 there is secured in any suitable manner a tappet guide member 13 adapted to accommodate either one or two tappets 14: as the case may be. In the present instance two tappets have been shown as that is the number usually employed in the operation of an engine. v

The tappets 14 are slidably mounted in bores 15 of the guide 13 for reciprocating motion and are held against rotation by a pin 16 that passes through a slot 17 in the tappets. In the lower ends of the tappets there are mounted respectively, the rollers 18 which ride on the cam member 11 in the usual manner.

T he manner of mounting these rollers 18 in the tappets 14 is considered as being an essential feature of this invention and is accomplished in the following manner.

With reference to Figs. 2 and 3 in particular eachtappet is provided with a pair of open ended slots 19 and 20 disposed at right angles to one another, the slots being formed just wide enough to permit the entrance of "a roller 18 together with its journals 21. The bushings 22 and 23 are then slipped over the journals 21 and into the bore 2 1- which will retain the roller in an operative position. Following this operation, the U shaped spring member 25 is inserted into theslot 17 and pressed down over the ends oflthe journals 21 and the bushings, 22 and 23 until vthevprojections or nibs engage the'depressions 31 in the journals 21, said spring member thus retaining all the parts in their assembled relation as shown in Figs. 1 and 3.

The upper portions ofthe tappets Mare bored out at 85 to a substantial depthina manner so as to provide asho'ulder or an abutment at 36 and into these bores are inserted the bearings 37 and 38' which are recessed to receive the ball ends of the valve actuating push rods 89 and 40. As the tappets are subject to considerable side thrust it will be seen that with this construction ample bearing surface is provided between the tappets and the tappet guide 13 above the bearing centers 41 of the push rods 39 and 40 so as to distribute this sidethrust over a large area and ghus prevent undue wear on the bearing surace.

Variations may be resorted to with the scope of the invention and portions of the improvements may be used without the others, whilst not departing from the spirit of the invention.

Having thus described my invention, I claim: 7

1. In a valve mechanism, the combination of a tappet guide member, a tappet mounted for reciprocation therein and provided with slots, a roller having journals and adapted for insertion into said tappet by means of said slots, a pair of bushings insertable into said tappet over the roller journals in a manner as to support said roller, and a spring means adapted to engage the ends of said bushings and journals to prevent separation of the parts.

2. In avalve mechanism, the combination of a tappet of tubular formation provided with transaxial slots and a transaxial bore adjacent one end thereof, a roller having journals adapted for insertion into said tappet by means of said slots, bushings in sertable into said bore and over said journals in a manner as to provide a bearing for the roller, and a spring means insertable through one of said slots and over said bushings in a manner as to retain the parts in operative re lation.

3. In a valve mechanism, the combination of a tappet guide member, a tapp et of tubular formation in said guide member provided with transaxialslots and a transaxial bore adjaeent one end thereof, a roller having journals adapted for insertion into said tappet by means of said slots, bushings insertable into said bore and over'said journals in a manner as to provide a'bearing for said roller, a spring means insert'able through one of said slots and over said bushings in a manner as to retain the arts in operative relation, an abutment within said tappet disposed substantially midway between the ends thereof, a push-rod bearing engaging said abutment, and a in secured'ln said guide member and extending through said tappetby means oi one of said slots to restrain the tappet to reoiprocating motion only.

Si ned at Keyport, in the county of Monmoufi'l, and State of New Jersey this 22nd. day of May, A. D. 1929.

JOSEPH J. ROLAND;

US365759A 1929-05-24 1929-05-24 Valve mechanism Expired - Lifetime US1802330A (en)

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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2489946A (en) * 1946-10-23 1949-11-29 New Britain Machine Co Radial engine cam follower
US2735313A (en) * 1956-02-21 Dickson
US2891525A (en) * 1955-08-01 1959-06-23 Thompson Ramo Wooldridge Inc Tappet barrel
US2925808A (en) * 1956-02-28 1960-02-23 Baumann Karl Valve actuating mechanism
US3101077A (en) * 1962-06-21 1963-08-20 John H Engle Roller tappet constraining device
US3108580A (en) * 1963-03-13 1963-10-29 Jr Harvey J Crane Non-rotatable valve tappet
US3139076A (en) * 1961-08-21 1964-06-30 Victor M Flaherty Non-rotating tappet arrangement
US3267919A (en) * 1965-06-21 1966-08-23 Gen Motors Corp Tappet anti-rotating device
US3822683A (en) * 1972-12-11 1974-07-09 Caterpillar Tractor Co Roller bearing retaining clip
US4173954A (en) * 1977-12-13 1979-11-13 Speckhart Frank H Limited rotation roller tappet
US4231267A (en) * 1978-11-01 1980-11-04 General Motors Corporation Roller hydraulic valve lifter
US4326484A (en) * 1979-10-26 1982-04-27 Cummins Engine Company, Inc. Floating tappet guide plate
US4335685A (en) * 1979-10-19 1982-06-22 Caterpillar Tractor Co. Lifter assembly
US4406257A (en) * 1979-03-19 1983-09-27 Caterpillar Tractor Co. Cam roller follower
US4549509A (en) * 1984-09-20 1985-10-29 Burtchell Darrell A Tappet
EP0221284A1 (en) * 1985-10-30 1987-05-13 Eaton Corporation Roller follower axle retention
US4850311A (en) * 1988-12-09 1989-07-25 General Motors Corporation Three dimensional cam cardanic follower valve lifter
US5273005A (en) * 1993-03-11 1993-12-28 General Motors Corporation Enlarged shaft roller lifter with retention means
US5307769A (en) * 1993-06-07 1994-05-03 General Motors Corporation Low mass roller valve lifter assembly
DE19729793A1 (en) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Piston pump for high-pressure fuel supply
US6003482A (en) * 1996-08-05 1999-12-21 Motorenfabrik Hatz Gmbh & Co. Kg Rocker arm for an internal combustion engine
DE19909418A1 (en) * 1999-03-04 2000-09-07 Mahle Ventiltrieb Gmbh Roller tappet with roller on axis, in which angle region in which roller axis is mounted is not more than 180 degrees
US20040074462A1 (en) * 2002-10-18 2004-04-22 Dhruva Mandal Lash adjuster body
US20040154571A1 (en) * 2002-10-18 2004-08-12 Dhruva Mandal Roller Follower assembly
US6871622B2 (en) 2002-10-18 2005-03-29 Maclean-Fogg Company Leakdown plunger
US20060110273A1 (en) * 2004-11-23 2006-05-25 Shaull Anthony A Fuel pump with a guided tappet assembly and methods for guiding and assembly
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
US20140170005A1 (en) * 2012-12-14 2014-06-19 Koganei Corporation Liquid supply apparatus
DE102006057246B4 (en) * 2006-12-05 2015-11-26 Schaeffler Technologies AG & Co. KG Mechanical plunger, in particular for a fuel pump of an internal combustion engine, with bent tabs for supporting the bolt of the drive roller
EP3002424A1 (en) * 2014-09-30 2016-04-06 Aktiebolaget SKF Mechanical system forming a cam follower or a rocker arm
US20160138541A1 (en) * 2014-11-13 2016-05-19 Aktiebolaget Skf Mechanical system forming a cam follower or a rocker arm
WO2016145133A1 (en) * 2015-03-10 2016-09-15 Cummins Inc. Guided tappet assembly method and apparatus
EP3181836A1 (en) * 2015-12-17 2017-06-21 Aktiebolaget SKF Cam follower roller device
US20170292413A1 (en) * 2016-04-08 2017-10-12 Otics Corporation Rocker arm
DE102017129874A1 (en) * 2017-12-14 2019-06-19 Schaeffler Technologies AG & Co. KG Switchable drag lever for a valve train of an internal combustion engine

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735313A (en) * 1956-02-21 Dickson
US2489946A (en) * 1946-10-23 1949-11-29 New Britain Machine Co Radial engine cam follower
US2891525A (en) * 1955-08-01 1959-06-23 Thompson Ramo Wooldridge Inc Tappet barrel
US2925808A (en) * 1956-02-28 1960-02-23 Baumann Karl Valve actuating mechanism
US3139076A (en) * 1961-08-21 1964-06-30 Victor M Flaherty Non-rotating tappet arrangement
US3101077A (en) * 1962-06-21 1963-08-20 John H Engle Roller tappet constraining device
US3108580A (en) * 1963-03-13 1963-10-29 Jr Harvey J Crane Non-rotatable valve tappet
US3267919A (en) * 1965-06-21 1966-08-23 Gen Motors Corp Tappet anti-rotating device
US3822683A (en) * 1972-12-11 1974-07-09 Caterpillar Tractor Co Roller bearing retaining clip
US4173954A (en) * 1977-12-13 1979-11-13 Speckhart Frank H Limited rotation roller tappet
US4231267A (en) * 1978-11-01 1980-11-04 General Motors Corporation Roller hydraulic valve lifter
US4406257A (en) * 1979-03-19 1983-09-27 Caterpillar Tractor Co. Cam roller follower
US4335685A (en) * 1979-10-19 1982-06-22 Caterpillar Tractor Co. Lifter assembly
US4326484A (en) * 1979-10-26 1982-04-27 Cummins Engine Company, Inc. Floating tappet guide plate
US4549509A (en) * 1984-09-20 1985-10-29 Burtchell Darrell A Tappet
EP0221284A1 (en) * 1985-10-30 1987-05-13 Eaton Corporation Roller follower axle retention
US4850311A (en) * 1988-12-09 1989-07-25 General Motors Corporation Three dimensional cam cardanic follower valve lifter
US5273005A (en) * 1993-03-11 1993-12-28 General Motors Corporation Enlarged shaft roller lifter with retention means
US5307769A (en) * 1993-06-07 1994-05-03 General Motors Corporation Low mass roller valve lifter assembly
US6003482A (en) * 1996-08-05 1999-12-21 Motorenfabrik Hatz Gmbh & Co. Kg Rocker arm for an internal combustion engine
DE19729793A1 (en) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Piston pump for high-pressure fuel supply
DE19909418A1 (en) * 1999-03-04 2000-09-07 Mahle Ventiltrieb Gmbh Roller tappet with roller on axis, in which angle region in which roller axis is mounted is not more than 180 degrees
US7281329B2 (en) 2002-10-18 2007-10-16 Maclean-Fogg Company Method for fabricating a roller follower assembly
US20040074462A1 (en) * 2002-10-18 2004-04-22 Dhruva Mandal Lash adjuster body
US6871622B2 (en) 2002-10-18 2005-03-29 Maclean-Fogg Company Leakdown plunger
US7284520B2 (en) 2002-10-18 2007-10-23 Maclean-Fogg Company Valve lifter body and method of manufacture
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
US7191745B2 (en) 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
US20040154571A1 (en) * 2002-10-18 2004-08-12 Dhruva Mandal Roller Follower assembly
US20060110273A1 (en) * 2004-11-23 2006-05-25 Shaull Anthony A Fuel pump with a guided tappet assembly and methods for guiding and assembly
US7311087B2 (en) 2004-11-23 2007-12-25 Cummins Inc. Fuel pump with a guided tappet assembly and methods for guiding and assembly
DE102006057246B4 (en) * 2006-12-05 2015-11-26 Schaeffler Technologies AG & Co. KG Mechanical plunger, in particular for a fuel pump of an internal combustion engine, with bent tabs for supporting the bolt of the drive roller
US20140170005A1 (en) * 2012-12-14 2014-06-19 Koganei Corporation Liquid supply apparatus
US9506458B2 (en) * 2012-12-14 2016-11-29 Koganei Corporation Liquid supply apparatus
EP3002424A1 (en) * 2014-09-30 2016-04-06 Aktiebolaget SKF Mechanical system forming a cam follower or a rocker arm
US10385956B2 (en) 2014-09-30 2019-08-20 Aktiebolaget Skf Mechanical system forming a cam follower or a rocker arm
US20160138541A1 (en) * 2014-11-13 2016-05-19 Aktiebolaget Skf Mechanical system forming a cam follower or a rocker arm
CN105604754A (en) * 2014-11-13 2016-05-25 斯凯孚公司 Mechanical system forming a cam follower or a rocker arm
US9745934B2 (en) * 2014-11-13 2017-08-29 Aktiebolaget Skf Mechanical system forming a cam follower or a rocker arm
WO2016145133A1 (en) * 2015-03-10 2016-09-15 Cummins Inc. Guided tappet assembly method and apparatus
US10072533B2 (en) 2015-12-17 2018-09-11 Aktiebolaget Skf Cam follower roller device
EP3181836A1 (en) * 2015-12-17 2017-06-21 Aktiebolaget SKF Cam follower roller device
US20170292413A1 (en) * 2016-04-08 2017-10-12 Otics Corporation Rocker arm
US10145272B2 (en) * 2016-04-08 2018-12-04 Otics Corporation Rocker arm
DE102017129874A1 (en) * 2017-12-14 2019-06-19 Schaeffler Technologies AG & Co. KG Switchable drag lever for a valve train of an internal combustion engine

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