GB1332799A – Hydraulic power unit including a hydraulic pump operated by a free piston internal combustion engine
– Google Patents
GB1332799A – Hydraulic power unit including a hydraulic pump operated by a free piston internal combustion engine
– Google Patents
Hydraulic power unit including a hydraulic pump operated by a free piston internal combustion engine
Info
Publication number
GB1332799A
GB1332799A
GB1332799DA
GB1332799A
GB 1332799 A
GB1332799 A
GB 1332799A
GB 1332799D A
GB1332799D A
GB 1332799DA
GB 1332799 A
GB1332799 A
GB 1332799A
Authority
GB
United Kingdom
Prior art keywords
pistons
liquid
engine
motor
combustion stroke
Prior art date
1970-10-12
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
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.)
RIEKKINEN AS
Original Assignee
RIEKKINEN AS
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.)
1970-10-12
Filing date
1970-10-12
Publication date
1973-10-03
1970-10-12
Application filed by RIEKKINEN AS
filed
Critical
RIEKKINEN AS
1973-10-03
Publication of GB1332799A
publication
Critical
patent/GB1332799A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
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
F02B71/00—Free-piston engines; Engines without rotary main shaft
F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 – F04B47/00
F04B49/08—Regulating by delivery pressure
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 – F04B47/00
F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 – F04B47/00 by means of valves
F04B49/24—Bypassing
F04B49/243—Bypassing by keeping open the inlet valve
Abstract
1332799 I C Engine operated hydraulic pumps; liquid piston engines AS RIEKKINEN 12 Oct 1970 48397/70 Headings F1A and F1B An internal combustion engine operated pump unit comprises engine pistons 2 operating in opposed relation inside a common combustion cylinder 4, there being hydraulic pump pistons 15 integral with respective ones of pistons 2, the pistons 15 being reciprocable in respective pump cylinders 16. Liquid is supplied from the pump cylinders 16 to a motor 22, there being a solenoid operated valve 30 connected to each cylinder 16 which, in response to control unit 28 which receives information from a tachogenerator 26 about the velocity and/or position and/or acceleration of engine pistons, maintains valve 30 open for a part of the combustion stroke so that the hydraulic fluid is by-passed from the circuit to motor 22, the liquid going to reservoir 19. For the rest of the combustion stroke valve 30 is closed so that the liquid is used to operate motor 22. Pistons 3, integral with pistons 2 and 15 serve to compress gas in respective chambers of a cylinder 7 during the combustion stroke to provide a spring restoring force for the pistons 2. A pressure transducer 29 measure the output pressure of the pumping units and transmits information to control unit 28 so that, if the engine becomes overloaded, the effective pumping part of the combustion stroke, i.e. in which the liquid operates motor 22, is shortened.
GB1332799D
1970-10-12
1970-10-12
Hydraulic power unit including a hydraulic pump operated by a free piston internal combustion engine
Expired
GB1332799A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB4839770
1970-10-12
Publications (1)
Publication Number
Publication Date
GB1332799A
true
GB1332799A
(en)
1973-10-03
Family
ID=10448462
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1332799D
Expired
GB1332799A
(en)
1970-10-12
1970-10-12
Hydraulic power unit including a hydraulic pump operated by a free piston internal combustion engine
Country Status (1)
Country
Link
GB
(1)
GB1332799A
(en)
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2502256A1
(en)
*
1981-03-23
1982-09-24
Airmachines
HYDRAULIC PUMP WITH VARIABLE STROKE PISTON AND GENERATOR USING THE PUMP
EP0085800A2
(en)
*
1982-02-10
1983-08-17
Pneumo Abex Corporation
Opposed piston type free piston engine pump unit
EP0328696A1
(en)
*
1988-02-13
1989-08-23
Hewlett-Packard GmbH
Valve unit
WO1992002730A1
(en)
*
1990-08-02
1992-02-20
Gerhard Brandl
Free-piston engine
EP1423611A1
(en)
*
2001-09-06
2004-06-02
U.S. Environmental Protection Agency
Fully-controlled, free-piston engine
1970
1970-10-12
GB
GB1332799D
patent/GB1332799A/en
not_active
Expired
Cited By (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2502256A1
(en)
*
1981-03-23
1982-09-24
Airmachines
HYDRAULIC PUMP WITH VARIABLE STROKE PISTON AND GENERATOR USING THE PUMP
EP0061405A1
(en)
*
1981-03-23
1982-09-29
Airmachines
Hydraulic pistion pump with a variable stroke, and pressure-fluid generator using such a pump
US4461613A
(en)
*
1981-03-23
1984-07-24
Airmachines
Hydraulic pump with variable-stroke piston and generator using said pump
EP0085800A2
(en)
*
1982-02-10
1983-08-17
Pneumo Abex Corporation
Opposed piston type free piston engine pump unit
EP0085800A3
(en)
*
1982-02-10
1984-07-25
Pneumo Corporation
Opposed piston type free piston engine pump unit
EP0328696A1
(en)
*
1988-02-13
1989-08-23
Hewlett-Packard GmbH
Valve unit
WO1992002730A1
(en)
*
1990-08-02
1992-02-20
Gerhard Brandl
Free-piston engine
EP1423611A1
(en)
*
2001-09-06
2004-06-02
U.S. Environmental Protection Agency
Fully-controlled, free-piston engine
EP1423611A4
(en)
*
2001-09-06
2004-12-29
Us Environment
Fully-controlled, free-piston engine
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Legal Events
Date
Code
Title
Description
1974-02-13
PS
Patent sealed
1976-05-12
PLNP
Patent lapsed through nonpayment of renewal fees
