Key information

Title
Compressor
Application number
20190129
Case type
National
Status
08.07.2024 Patent meddelt (B1)
Filed
31.01.2019
Effective date
31.01.2019
Publicly available
03.08.2020
Next annual fee due
31.01.2027
Applicant
Vading Holding AS (NO)
Owner
TWIN KINETIC TURBINER AS (NO)
Inventor
Kjell Vading (NO)
Agent
BRYN AARFLOT AS (NO)
Granted
08.07.2024
Patent number
348050
Expiry date
31.01.2039

Abstract and drawing

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content.
A piston compressor comprising a cylinder assembly 6 having a plurality of cylinders 7. The cylinders 7 are arranged radially along at least one circle, which has a first centre axis B, about which said cylinder assembly 6 revolves. It also comprises a piston assembly 12 having a plurality of pistons 9, one piston 9 arranged within each cylinder 7, a piston rod 10 coupled to each of the pistons 9, and a hub 11 to which said piston rods 10 in turn are coupled. The piston assembly 12 revolves about a second axis A. The second axis A is parallel with, but at a distance, from the first axis B. The cylinder 6 and the piston assemblies 12 are within a common housing. The housing 1. The cylinder assembly 7 is mounted on a cylinder carrier 8, which receives rotational input from an external rotation source.

Publications

A1
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Documents

 Expand Download files (39)
Date
 Date Doc. No. Process Case number In/Out Journal description To/from
 02.06.2025 16-01 Saksbehandling 20190129(348050) UT PT Påminnelse om ikke betalt årsavgift (3329) (PT20190129) BRYN AARFLOT AS
 21.02.2025 04-01 Overdragelse av søknad/rettighet 2024/19139 UT GH Forespørsel BRYN AARFLOT AS
 18.02.2025 03-01 Overdragelse av søknad/rettighet 2024/19139 INN Korrespondanse (Hovedbrev inn) BRYN AARFLOT AS
 30.12.2024 02-01 Overdragelse av søknad/rettighet 2024/19139 UT GH Forespørsel BRYN AARFLOT AS
 30.12.2024 01-02 Overdragelse av søknad/rettighet 2024/19139 INN General POA - Twin Kinetic Turbiner AS - signed BRYN AARFLOT AS
 30.12.2024 01-01 Overdragelse av søknad/rettighet 2024/19139 INN Generell henvendelse BRYN AARFLOT AS
 10.07.2024 15-01 Saksbehandling 20190129(348050) UT PT Registreringsbrev nasjonal patent (15) (PT20190129)
26.04.2024 14-01 Saksbehandling 20190129 UT Intention to grant BRYN AARFLOT AS
 25.04.2024 13-05 Saksbehandling 20190129 INN P5715NO00-Oversatte krav BRYN AARFLOT AS
 25.04.2024 13-04 Saksbehandling 20190129 INN P5715NO00-Letter to the Patent Office BRYN AARFLOT AS
 25.04.2024 13-03 Saksbehandling 20190129 INN P5715NO00-Description and claims (marked up) BRYN AARFLOT AS
 25.04.2024 13-02 Saksbehandling 20190129 INN P5715NO00-Description and claims (clean version) BRYN AARFLOT AS
 25.04.2024 13-01 Saksbehandling 20190129 INN Korrespondanse (Hovedbrev inn) BRYN AARFLOT AS
 20.02.2024 12-01 Saksbehandling 20190129 UT Substantive examination BRYN AARFLOT AS
 19.09.2022 02-01 Overdragelse av søknad/rettighet 2022/14319 UT GH Forespørsel PROTECTOR IP AS
 15.09.2022 01-03 Overdragelse av søknad/rettighet 2022/14319 INN Overdragelseserklæring 20190129 Kompressor sign TC_1362635 PROTECTOR IP AS
 15.09.2022 01-02 Overdragelse av søknad/rettighet 2022/14319 INN generalfullmakt vading holding as PROTECTOR IP AS
 15.09.2022 01-01 Overdragelse av søknad/rettighet 2022/14319 INN Generell henvendelse PROTECTOR IP AS
 03.06.2022 11-01 Saksbehandling 20190129 UT PT Påminnelse om ikke betalt årsavgift (3329) (PT20190129)
01.12.2020 10-01 Saksbehandling 20190129 UT PT Varsel om betaling av første årsavgift (3317) (PT20190129)
28.02.2020 09-04 Saksbehandling 20190129 INN Krav merket PROTECTOR IP AS
 28.02.2020 09-03 Saksbehandling 20190129 INN Hovedbrev PROTECTOR IP AS
 28.02.2020 09-02 Saksbehandling 20190129 INN Krav ren PROTECTOR IP AS
 28.02.2020 09-01 Saksbehandling 20190129 INN Korrespondanse (Hovedbrev inn) PROTECTOR IP AS
 30.08.2019 08-02 Saksbehandling 20190129 UT PT_report 07:54:58
30.08.2019 08-01 Saksbehandling 20190129 UT Realitet patent PROTECTOR IP AS
 19.02.2019 07-01 Saksbehandling 20190129 UT Infobrev til oppfinner PROTECTOR IP AS
 12.02.2019 05-03 Saksbehandling 20190129 INN Hovedbrev PROTECTOR IP AS
 12.02.2019 05-02 Saksbehandling 20190129 INN Erklæring Søkers rett til oppfinnelse PROTECTOR IP AS
 12.02.2019 05-01 Saksbehandling 20190129 INN Korrespondanse (Hovedbrev inn) PROTECTOR IP AS
 11.02.2019 06-01 Saksbehandling 20190129 INN Korrespondanse (Hovedbrev inn) PROTECTOR IP AS
 11.02.2019 04-01 Saksbehandling 20190129 INN Korrespondanse (Hovedbrev inn) PROTECTOR IP AS
 04.02.2019 03-01 Saksbehandling 20190129 UT Formal Examination 1 PROTECTOR IP AS
 04.02.2019 02-01 Saksbehandling 20190129 UT Infobrev til oppfinner PROTECTOR IP AS
 31.01.2019 01-05 Saksbehandling 20190129 INN fig. 1-2 PROTECTOR IP AS
 31.01.2019 01-04 Saksbehandling 20190129 INN Fullmakt PROTECTOR IP AS
 31.01.2019 01-03 Saksbehandling 20190129 INN Sammendrag PROTECTOR IP AS
 31.01.2019 01-02 Saksbehandling 20190129 INN Beskrivelse PROTECTOR IP AS
 31.01.2019 01-01 Saksbehandling 20190129 INN Søknadsskjema Patent PROTECTOR IP AS

Description, claims and drawings

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content. Description
Technical Field[0001] The present invention relates to a compressor according to the preamble of the appended claim 1Background Art[0002] Compressors have a multiple of applications, from small compressors to be used for compression of air for air-driven tools, via compressors for compressing the working fluid in heat pumps to large compressor for compression of natural gas from sub-terrain wells before transportation.[0003] Depending largely on the application compressors fall into a wide range of different types, such as reciprocating compressors where a crankshaft drives one or more pistons, rotary screw compressors, rotary vane compressors, rolling piston compressors, scroll compressors, diaphragm compressors, centrifugal compressors, axial-flow compressors, as well as several more less used types of compressors.Summary of invention[0004] The present invention has some similarities with the World War I fighter aeroplane engine known inter alia under the nickname “The Gnome” (http://www.pilotfriend.com/aero_engines/aero_rotary.htm, see also https://en.wikipedia.org/wiki/Rotary_engine#Gnome). Although, there were earlier attempts, the engine was first commercialized by the French brothers Seguin. One of the brothers patented a version of the engine in 1910 as US0959172.[0005] In this engine type, the crankshaft is fixed to the aeroplane while the cylinders and pistons, which are arranged in a star configuration, revolve around the crankshaft. The “star” of cylinders revolves in one circle about the main shaft of the crankshaft, while the pistons revolve in another, offset circle about the crank pin of the crankshaft. The result is a wave of motion of the pistons along the cylinders.[0006] Although this aeroplane engine type was built in different varieties by different engineers and was widely used in World War I, it was at the end abandoned for two main reasons: The first is that because the heavy spinning “star“ of cylinder and piston assemblies created a gyro effect that made the aeroplane very difficult to manoeuvre. The second is that the engine would, due to the centrifugal forces, throw out lubricating oil after its first trip through the engine. This resulted in a very high oil consumption, which limited the air time considerably.[0007] The principle of revolving cylinder and piston assemblies was also exploited by Rice et al. in US 2718879, published in 1955. This patent describes a small handheld motor to be used as an impact wrench or similar. In this known motor, the crankshaft has been replaced by a cam, on which rollers roll. Each roller is coupled to a piston and pushes the piston relative to the associated cylinder. In this motor the cylinder and piston assemblies revolve about the same axis as the cam.[0008] It has been found that while the principle of revolving cylinder and piston assemblies has great flaws when it comes to the application as an engine, especially an aeroplane, the principle will function without these flaws when utilized in a stationary compressor.[0009] The gyro effects have no detrimental impact on a stationary machine, and a compressor can be made without the need for an oil sump. Hence, the present invention is directed to a compressor comprising revolving piston and cylinder assemblies arranged in a star configuration where the pistons are coupled to a shaft that rotates about a first axis and the cylinders rotate about a second axis, which is offset from the first axis.[0010] In a preferred embodiment the compressor is designed without a crankshaft but with two offset straight shafts.[0011] The objects of the invention is achieved by a piston compressor comprising a cylinder assembly having a plurality of cylinders, said cylinders being arranged radially along at least one circle, said circle having a first centre axis, about which said cylinder assembly revolves; and further comprising a piston assembly having a plurality of pistons, one piston arranged within each cylinder, a piston rod coupled to each of said pistons, and a hub to which said piston rods in turn are coupled; said piston assembly revolving about a second axis through said hub, said second axis being parallel with, but at a distance, from said first axis, said cylinder assembly and said piston assembly being arranged within a common housing having an internal circular surface, said surface encircling said cylinder assembly and said piston assembly; said housing having at least one intake port and at least one outlet port; said cylinder assembly being mounted on a cylinder carrier, said cylinder carrier in turn being rotatably supported by said housing, and said cylinder carrier receiving rotational input from an external rotation source.[0012] In one embodiment the hub is arranged about a shaft that is fixed to said housing.[0013] In an alternative embodiment the hub forms a rotatable shaft.[0014] In a preferred embodiment the hub and the cylinder carrier are freely rotatable with respect to one another, and that the rotation between the two parts is transmitted through the cylinders and pistons.[0015] It is possible that the internal circular surface of said housing is formed by a liner providing a sliding surface for said cylinder assembly.[0016] To increase the capacity of the compressor, the cylinder assembly is arranged along at least two concentric circles.[0017] Preferably, the cylinders are evenly distributed along the circle.Brief description of drawings[0018] The invention will now be explained in more detail, referring to a specific, non-limiting, embodiment shown in the accompanying drawings, in which:Figure 1 shows a compressor according to the invention in cross-section, and Figure 2 shows the compressor of figure 1 in longitudinal section.Detailed description of the invention[0019] Figure 1 shows a cross-section through a compressor according to the present invention. It comprises a housing 1 having an internal chamber 2. An intake port 3 and outlet port 4 extends through the housing wall and into the internal chamber 2. [0020] Inside the internal chamber 2 is a housing liner 5, which on its inside forms a sliding surface, as will be explained below.[0021] Further within the internal chamber 2 is a cylinder assembly 6. In the shown embodiment, the cylinder assembly 6 comprises eight cylinders 7, which are mounted in star configuration on a carrier 8. Each cylinder 7 has a longitudinal axis [0022] Within each cylinder 7 a piston 9 is arranged. The piston in coupled to a piston rod 10, which in turn is coupled to a hub 11. The pistons 9, piston rods 10 and hub 11 form a piston assembly 12. The hub 11 is rotatable about an axis A. The axis A is offset from the centre axis B of the housing 1 about which the cylinder assembly 6 revolves.[0023] Due to the offset of the two axes A and B the pistons 9 will travel back and forth within the cylinders 7 as the cylinder assembly 6 and the piston assembly 12 rotate.[0024] The cylinder carrier has sealings 13 extending between and around the cylinders 7 at their outer ends to seal against the sliding surface of the liner 5. The sealings have sealing strips 13a that provides a proper sealing against the sliding surface.[0025] Figure 2 shows the compressor in longitudinal section. The housing is shown as a cylindrical mandrel 1. An end cap 14, 15 is attached to the mandrel 1 to form a closed internal chamber 2.[0026] A shaft 16 is fixed to one end cap 15 about the axis A. The hub 11 is arranged rotatable about this shaft 16.[0027] The cylinder carrier 8 is arranged rotatable within the end caps 14, 15 on bearings 17, 18 in a respective end cap 14, 15. The carrier 8 comprises journals 21, 22 and discs 23, 24, one on each side of the cylinders 7. Sealings 19, 20 seals around the cylinder carrier 8 at the journals 21, 22 to prevent leakage from the internal chamber 2. A shaft 25, coupled to or integrated with the cylinder carrier 8, functions as the input shaft of the compressor.[0028] As can be seen in figure 2, the cylinder assembly 6 comprises two layers 7a and 7b of cylinders 7. Two adjacent cylinders 7 may form a unitary block.[0029] The function of the compressor will now be described: [0030] The cylinder assembly 6 and the piston assembly 12 rotates in a clockwise direction as seen in figure 1. Rotational input from an external driving unit, such as an electric or hydraulic motor, is given through the input shaft 25 and the cylinder carrier 8. The cylinders 7 pull the piston assembly along in the rotation.[0031] When a cylinder 7 and piston 9 passes the intake port 3, the piston 9 will be approximately at its outermost position within the associated cylinder 7. A channel (not shown) is formed from the intake port 3 along the liner 5. As the cylinder 7 and its associated piston 9 moves across the intake port 3 and along the channel, the piston 9 moves inwards within the cylinder 7 and draws in the gas to be compressed into the associated cylinder 7. The inflow from the intake port 3 continues until the cylinder 7 has moved to the position where the piston 9 is at its innermost position within the cylinder 7. Shortly before or when the cylinder 7 reaches this position, the channel from the intake port 3 ends and the outer open end of the cylinder is sealed against the liner.[0032] From here on the piston 9 starts to move outwards within the cylinder 7 and thereby compresses the gas in the cylinder 7.[0033] When the cylinder 7 reaches the outlet port 4, the piston 9 has almost reached its outermost position within the cylinder 7, and the compressed gas in the cylinder 7 is released through the outlet port 4.[0034] The pistons will be pulled outwards from the centrifugal force when the compressor is rotating.[0035] With the relatively high number of cylinders 7 and a rotational speed in the range of 500 to 5000 rpm, the flow of compressed gas out of the outlet port 4 will be virtually constant without the fluctuations usually caused by conventional piston compressors. The compressor is therefore very suitable for the lower part of the indicated range.[0036] The compressor, which comprises four main parts, the housing, the cylinder assembly, the piston assembly and the hub, is particularly suitable for use as a compressor in large scale heat pumps. For this application the compressor will be made with a large displacement volume.
Claims
Claims1. A piston compressor, characterised in that it comprises a cylinder assembly (6) having a plurality of cylinders (7), said cylinders (7) being arranged radially along at least one circle, said circle having a first centre axis (B), about which said cylinder assembly (6) revolves; and further comprising a piston assembly (12) having a plurality of pistons (9), one piston (9) arranged within each cylinder (7), a piston rod (10) coupled to each of said pistons (9), and a hub (11) to which said piston rods (10) in turn are coupled; said piston assembly (12) revolving about a second axis (A) through said hub (11), said second axis (A) being parallel with, but at a distance, from said first axis (B), said cylinder assembly (6) and said piston assembly (12) being arranged within a common housing having an internal circular surface, said surface encircling said cylinder assembly (6) and said piston assembly (12); said housing (1) having at least one intake port (3) and at least one outlet port (4); said cylinder assembly (7) being mounted on a cylinder carrier (8), said cylinder carrier (8) in turn being rotatably supported by said housing (1), and said cylinder carrier (8) receiving rotational input from an external rotation source.2. The compressor of claim 1, characterised in that the hub (11) is arranged about a shaft (16) that is fixed to said housing (1).3. The compressor of claim 1, characterised in that the hub (11) forms a rotatable shaft.4. The compressor of claim 1, 2 or 3, characterised in that the hub (11) and the cylinder carrier (8) are freely rotatable with respect to one another, and that the rotation between the two parts is transmitted through the cylinders (7) and pistons (9).5. The compressor of any of the preceding claim, characterised in that the internal circular surface of said housing (1) is formed by a liner (5) providing a sliding surface for said cylinder assembly (7).6. The compressor of any of the preceding claim, characterised in that said cylinder assembly (7) is arranged along at least two concentric circles.7. The compressor of any of the preceding claim, characterised in that the cylinders (7) are evenly distributed along the circle.
Drawings

Priority

No priority

Patent classes

IPC classesF01B 1/06F01B 13/06F02B 57/08F02B 57/00F01C 1/344CPC classesF01B 1/06F01B 13/06F02B 57/08F02B 57/00F01C 1/344

Citations

GB 114667 A (A)US 3799035 A (A)US 1272791 A (A)US 788390 A (A)US 5720241 A (A)US 4038949 A (A)US 4010719 A (A)US 2015144103 A1 (A1)US 2005109294 A1 (A1)

Applicants, owners and inventors

Owners
TWIN KINETIC TURBINER AS
Bankgata 14 8005 BODØ NO (BODØ Municipality, Nordland county)Org. number: 834218992Inventors
Kjell Vading
Bankgata 14, HO702 8006 BODØ NO (BODØ Municipality, Nordland county)

Agent

BRYN AARFLOT AS
BRYN AARFLOT AS

Org. number: 979993269

Name and address are automatically synchronized with the Brønnøysund Register Centre.

Open in The Brønnøysund Register Centre
Stortingsgata 8 0161 OSLO NO (OSLO Municipality, Oslo county)
Org. number: 979993269
Reference: P5715NO00-BGC

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