GB1499587A - Internal combustion machines - Google Patents

Internal combustion machines

Info

Publication number
GB1499587A
GB1499587A GB47887/75A GB4788775A GB1499587A GB 1499587 A GB1499587 A GB 1499587A GB 47887/75 A GB47887/75 A GB 47887/75A GB 4788775 A GB4788775 A GB 4788775A GB 1499587 A GB1499587 A GB 1499587A
Authority
GB
United Kingdom
Prior art keywords
valve
scavenging
combustion chamber
duct
piston
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
Application number
GB47887/75A
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.)
Max Co Ltd
Original Assignee
Max 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
Priority claimed from JP13338074A external-priority patent/JPS5712673B2/ja
Priority claimed from JP7360275A external-priority patent/JPS51150174A/en
Priority claimed from JP9082475U external-priority patent/JPS555263Y2/ja
Application filed by Max Co Ltd filed Critical Max Co Ltd
Publication of GB1499587A publication Critical patent/GB1499587A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/10—Means for driving the impulse member comprising a built-in internal-combustion engine
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools

Abstract

1499587 Fastener driving tool MAX CO Ltd 20 Nov 1975 [20 Nov 1974 17 June 1975 28 June 1975] 47887/75 Heading B4C [Also in Division F1] An I.C. engine for driving a power tool, e.g. a nail driver, comprises a cylinder 12 having a piston 14 with a nail-driving rod 142, the cylinder 12 being surrounded by a combustion chamber 15 and brought into communication therewith by the opening a valve 18 by means of explosion of an air-fuel gas mixture in the combustion chamber. Fuel gas is supplied from a reservoir 23 and pressurized air is supplied from a compressor 22 to a reservoir 21. The pressurized air is used to form an explosive mixture, to maintain the valve 18 closed and to scavenge the combustion chamber. To operate the engine a pilot valve 35 is moved upwardly, thus lifting a fuel/air control valve 36 against a spring bias and closing an exhaust valve 33. Compressed air enters the chamber 15 via a duct 46c whilst fuel-gas also passes (via regulator 24 and ducts 47, 46b) into the chamber, and as the pressure on both sides 362, 363 of valve 36 equalizes the valve 36 closes under the spring bias. A sparking plug 16 is fired causing an explosion and high pressure in the combustion chamber 15, which pressure lifts a control valve 28 and a sensing valve 50. The control valve 28 puts a duct 31 in communication with the atmosphere via a duct 30a and allows compressed air to escape from a cavity 191 enabling the valve 18 to lift and explosion gases to enter into the cylinder 12 to drive the piston 14 downwardly. Sensing valve 50 allows compressed air to pass from a duet 51 into a scavenging chamber 48 and along a duct 49, to lift open the exhaust valve 33; this venting exhaust duct 34 to atmosphere; and also to force down a spring-biased scavenging valve 383. Scavenging air passes along ducts 40, 41 through the combustion chamber 15 and out of the exhaust duct 34. A delay in venting the exhaust duct 34 and opening the scavenging valve 383 is obtained by adjusting the volume of the scavenging chamber 48 and the size of a vent 52 to atmosphere. As compressed air escapes through vent 52 the scavenging valve 383 closes. Compressed air forces down control valve 28 and valve 18 while the piston 14 is returned by a spring 14a. In a modification (not shown) the spring 14a is omitted and gases on the lower side of the piston are admitted to the combustion chamber, which gases return the piston to its upper position after a power stroke.
GB47887/75A 1974-11-20 1975-11-20 Internal combustion machines Expired GB1499587A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP13338074A JPS5712673B2 (en) 1974-11-20 1974-11-20
JP7360275A JPS51150174A (en) 1975-06-17 1975-06-17 Impulse tool operated by combustion pressure
JP9082475U JPS555263Y2 (en) 1975-06-28 1975-06-28

Publications (1)

Publication Number Publication Date
GB1499587A true GB1499587A (en) 1978-02-01

Family

ID=27301261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47887/75A Expired GB1499587A (en) 1974-11-20 1975-11-20 Internal combustion machines

Country Status (2)

Country Link
FR (1) FR2291829A1 (en)
GB (1) GB1499587A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354821A2 (en) * 1988-08-12 1990-02-14 Alphonsus Gerardus Guliemus Veldman Power tool
WO2007000031A1 (en) * 2005-06-29 2007-01-04 Poly Systems Pty Ltd A hand-held power tool
EP2050542A1 (en) * 2006-08-09 2009-04-22 Max Co., Ltd. Gas burning type driving tool
WO2017045972A1 (en) * 2015-09-14 2017-03-23 Hilti Aktiengesellschaft Fuel gas-fired driving-in tool with charging function
EP3184249A1 (en) * 2015-12-22 2017-06-28 HILTI Aktiengesellschaft Driving device powered by combustion gas with loading
US20190224833A1 (en) * 2018-01-19 2019-07-25 Max Co., Ltd. Driving tool
AU2019200366B2 (en) * 2018-01-19 2021-01-21 Max Co., Ltd. Driving tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835570A1 (en) * 1978-08-14 1980-02-28 Hilti Ag DRILL AND CHISEL HAMMER WITH COMBUSTION ENGINE DRIVE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046737A (en) * 1962-07-31 Figure
US1359295A (en) * 1920-01-12 1920-11-16 Trumble Milon James Gun
US2960977A (en) * 1959-04-21 1960-11-22 Jr Seth B Moorhead Variable velocity pneumatic gun system
US3850359A (en) * 1973-05-11 1974-11-26 Fastener Corp Fastener driving tool

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354821A2 (en) * 1988-08-12 1990-02-14 Alphonsus Gerardus Guliemus Veldman Power tool
EP0354821A3 (en) * 1988-08-12 1991-04-03 Alphonsus Gerardus Guliemus Veldman Power tool
WO2007000031A1 (en) * 2005-06-29 2007-01-04 Poly Systems Pty Ltd A hand-held power tool
US7594599B2 (en) 2005-06-29 2009-09-29 Poly Systems Pty Ltd Hand-held power tool
CN101218069B (en) * 2005-06-29 2011-05-25 多系统私人有限公司 A hand-held power tool
EP2050542A1 (en) * 2006-08-09 2009-04-22 Max Co., Ltd. Gas burning type driving tool
EP2050542A4 (en) * 2006-08-09 2010-09-15 Max Co Ltd Gas burning type driving tool
EP2380705A1 (en) * 2006-08-09 2011-10-26 Max Co., Ltd. Gas combustion type striking tool
WO2017045972A1 (en) * 2015-09-14 2017-03-23 Hilti Aktiengesellschaft Fuel gas-fired driving-in tool with charging function
EP3184249A1 (en) * 2015-12-22 2017-06-28 HILTI Aktiengesellschaft Driving device powered by combustion gas with loading
US20190224833A1 (en) * 2018-01-19 2019-07-25 Max Co., Ltd. Driving tool
US20190224828A1 (en) * 2018-01-19 2019-07-25 Max Co., Ltd. Driving tool
CN110053000A (en) * 2018-01-19 2019-07-26 美克司株式会社 Driver
EP3575039A1 (en) * 2018-01-19 2019-12-04 Max Co., Ltd. Driving tool
AU2019200366B2 (en) * 2018-01-19 2021-01-21 Max Co., Ltd. Driving tool
US10940579B2 (en) 2018-01-19 2021-03-09 Max Co., Ltd. Driving tool
US20210154818A1 (en) * 2018-01-19 2021-05-27 Max Co., Ltd. Driving tool
AU2019200363B2 (en) * 2018-01-19 2021-11-11 Max Co., Ltd. Driving tool
TWI753231B (en) * 2018-01-19 2022-01-21 日商美克司股份有限公司 Break in tool
US11911885B2 (en) 2018-01-19 2024-02-27 Max Co., Ltd. Driving tool

Also Published As

Publication number Publication date
FR2291829A1 (en) 1976-06-18
FR2291829B1 (en) 1982-10-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee