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WO/2024/081612A1 |
A seal (20) defining a chamber (28) includes a first portion (22), a second portion (24) opposed from the first portion (22), and a center portion (26) between the first portion and the second portion (22, 24). The center portion (26) de...
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WO/2024/057047A1 |
The invention relates to a piston (1) for sucker-rod pumps, having a cylindrical piston body (la) with a through hole (3), and an upper valve body (8) and a lower valve body (15) are connected to the through hole (3), and a rod coupling ...
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WO/2024/036036A2 |
Pistons and/or piston rings include features to provide oil and/or gas flow past the piston rings of the piston. As a result, oil consumption due to reverse blow-by conditions is reduced or eliminated.
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WO/2024/018116A1 |
The invention relates to a method for purification of feed liquid (F), the feed liquid (F) containing minerals or chemicals or both, the method having the followings steps of: - feeding feed liquid (F) into a tank (40) and pressurizing t...
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WO/2024/015849A1 |
A piston assembly includes a piston head. The piston assembly further includes an upper connecting rod rotatably coupled to the piston head. The piston assembly also includes a shoe positioned between the upper connecting rod and an inne...
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WO/2023/219937A1 |
Various configurations for a pump for oral irrigators. In one embodiment, a pump is disclosed that includes a connecting rod and a piston. The piston includes a sidewall defining a piston cavity and a rod cutout defined in the sidewall w...
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WO/2023/188834A1 |
This piston unit, which reciprocates in a cylinder, comprises a piston and a top land member mounted to the piston. The piston has a first portion that includes an end part of a side of one end face of the piston and on which the top lan...
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WO/2023/173188A1 |
The present invention refers to a two-stroke internal combustion engine, a lubrication device (130) and a two-stroke combustion engine cylinder (100) comprising the lubrication device (130). In the engine, the lubrication device (130) de...
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WO/2023/163346A1 |
Disclosed are a piston core pin capable of dispensing a more precise amount of liquid sample by reducing the volume of an air cushion in the lower part of a piston, and an air displacement pipette comprising same. This piston core compri...
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WO/2023/160861A1 |
The invention relates to improvements in the technical field of disk brakes. For this purpose, inter alia, a piston (1) for a disk brake is proposed, said piston comprising an outer part (4) and an inner part (5) inserted into the outer ...
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WO/2023/118533A1 |
The invention relates to a piston, in particular for an engine, having a top, a bottom, a circumferential surface extending along a circumference and an axis of movement extending substantially in parallel with a profile of the circumfer...
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WO/2023/067418A1 |
A proportional volumetric dosing unit (1) is described comprising a pump (25) provided with a piston (235) adapted to supply an auxiliary fluid to a motor (20) of the proportional volumetric dosing unit itself, which moves the piston (23...
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WO/2023/066440A1 |
Invention relates to a connecting rod (10) for a high-pressure piston pump, comprising a crank pin end (12), and a piston end (14), in which the piston end (14) of the connecting rod (10) comprises a piston pin arrangement (18) configure...
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WO/2023/016745A1 |
The invention relates to a piston (1) for an internal combustion engine, comprising at least one annular groove in the piston material, characterized in that at least one annular groove (22), preferably the first annular groove closest t...
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WO/2023/012344A1 |
The invention relates to a master piston (1) for a hydraulic vehicle brake (2), the master piston (1) comprising at least one piston element (4) and a seal which is molded onto the piston element (4). The invention further relates to a h...
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WO/2022/258224A1 |
An oil control assembly can comprise a capsule comprising: a first piston; a second piston; and a capsule biasing mechanism biasing the first piston from the second piston; wherein the first piston and the second piston define a chamber ...
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WO/2022/208526A1 |
The present invention discloses a piston assembly (100) for an internal combustion engine. The piston assembly includes one or more gas port (110) inclinedly disposed with respect to mid plane sliding axis of the piston assembly (100), e...
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WO/2022/204469A1 |
A manifold system that includes a gas cylinder assembly that includes an outer tube and a cylinder sleeve, and wherein atomized non-solid lubricant that flows into the cylinder sleeve of the gas cylinder assembly is used to at least part...
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WO/2022/167501A1 |
The present invention relates to a piston for a piston pump, in particular a piston compressor, comprising a piston base body (1) and a piston head valve (3) having a reed valve plate (31), wherein the reed valve plate (31) is fastened w...
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WO/2022/136014A1 |
A compressor (10) having a stationary part (20), a part (30) oscillating along a main axis (X), and a leakage path (L) extending between the stationary part (20) and the oscillating part (30) in the axial direction, wherein a plurality o...
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WO/2022/122063A1 |
The invention relates to a piston unit (2) of a working cylinder (1), wherein: - a piston rod (3) has an outer thread (5) on a piston-side coupling portion; - a piston (4) has an axial bore which comprises an inner thread (6) and in whic...
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WO/2022/093680A1 |
A connecting rod for an internal combustion engine, the connecting rod including: an upper section; a lower section; a side plate; an oil splatter; the upper section has a Y-shape including a handle and two split ends with a semicircular...
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WO/2022/084072A1 |
The invention relates to a pump (1) for fluid to be pumped from a fluid supply, the pump (1) comprising a pump body (300) having: - a first end (302) from which at least one intake manifold extends and leads into a fluid chamber (301) to...
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WO/2022/077610A1 |
A connecting structure for a piston (1) and a piston rod (2) of a push rod cylinder, comprising: a piston (1), and a piston rod (2) and connecting components (3) which mate with the piston (1). The connecting components (3) are disposed ...
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WO/2022/028906A1 |
The invention relates to a gap seal device, comprising: - a housing (2), which has a fluid-filled guiding chamber (22); - a multi-part piston (3), which can be translationally and/or rotationally moved in the guiding chamber (22); wherei...
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WO/2022/024858A1 |
An inner circumferential wall surface of a cavity 3 of a piston 1 has a lower region 3a that goes halfway to an opening from an inner floor surface of the cavity 3 and is flush in the circumferential direction. The inner circumferential ...
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WO/2021/219601A1 |
Wind turbine comprising a nacelle (3) with at least one main bearing (11) tilted with its rotation axis (18) towards the horizontal axis (19) and comprising an inner ring (14) and an outer ring (13), whereby the main bearing (11) is a sl...
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WO/2021/213582A1 |
The invention relates to an actuator and to a torque transmission device comprising the actuator, which torque transmission device is designed, more particularly, as a friction clutch. The actuator (1) comprises a translationally movable...
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WO/2021/216895A1 |
An abradable coating is formed on a mechanical part from a polymer resin-containing powder deposited over a polymer resin-containing liquid that is substantially free of volatile organic hydrocarbons. The liquid and the powder are then c...
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WO/2021/176205A1 |
A subsea line clamp assembly (1) has a body (10) having an axis and a clamp member (50), assembled in segments around a subsea line (3), and tethered to a subsea anchor (5). The clamp member (50) is movably located within the body (10). ...
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WO/2021/151779A1 |
The invention relates to a piston (1) with a pin boss (4) and a piston pin (5) which can be arranged therein. It is essential to the invention that: - the piston pin (5) has a tubular design, - a first opening (6) is provided in the pist...
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WO/2021/145509A1 |
A compressor is provided. The compressor according to an aspect of the present specification compresses and discharges a refrigerant sucked in a cylinder, the compressor comprising: the cylinder which forms a compression space of the ref...
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WO/2021/132604A1 |
A plunger according to the present disclosure comprises: a plunger main body part that is made of sapphire, is columnar, and has a non-penetrating fitting hole extending in a center axis direction from one end; a core part that is insert...
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WO/2021/122926A1 |
The present invention relates to a valve arrangement. The present invention further relates to a fluid flow control element. Furthermore, the present invention relates to a turbomachine system comprising such a valve arrangement and/or f...
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WO/2021/100440A1 |
Provided is a piston for an internal combustion engine, the piston being able to suppress the adhesion of discharged cooling material to a cylinder. A piston 11 comprises a piston head 3 and a cylinder 4. The piston head 3 has formed the...
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WO/2021/084040A1 |
A ring carrier (20) for a piston (10) for an internal combustion engine is formed by a carrier body having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface, with at least one ring gro...
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WO/2021/045129A1 |
At least one of a pair of piston skirt parts (27) of a piston (25) for an engine has recesses (29) at both ends in the circumferential direction thereof, and the outer circumferential surface (28) of the piston skirt part (27) has a slid...
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WO/2021/018683A1 |
According to the invention, a piston (2, 2', 2") is provided for an internal combustion engine, comprising a piston base (10), a piston head (12) which adjoins the piston base, and a piston shaft (8) which is hollow in some regions and i...
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WO/2021/008648A1 |
The invention relates to a roller tappet (1) for a high-pressure fuel pump, having a housing (2), next to the drive-side annular face (3) of which a cam contact roller (4) is accommodated, wherein: a bridge piece (5) sits on an inner lat...
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WO/2020/251829A1 |
A connecting rod assembly has a connecting rod with a large end and a small end, a piston wrist pin, and fasteners to connect the connecting rod to the piston wrist pin and optionally one or more shims in between the connecting rod and p...
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WO/2020/234856A1 |
A piston that is characterized by possessing the capability to be mounted with up to two connecting rods in a technically sound manner. Such capability being enabled through means of this piston design having three separate locations whe...
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WO/2020/196098A1 |
Provided is a diesel engine (1) comprising a piston (5) and a fuel injection valve (6), wherein the piston (5) has, formed in the piston top surface (50), a cavity (51) which opens towards the lower surface side of a cylinder head (3) an...
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WO/2020/183293A1 |
A shaft-cylinder assembly for high-temperature operation comprises a pair of first and second dynamic sealing members (203a, 203b) having a helical coiled seal ring structure configured to be in contact with the shaft (202) for providing...
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WO/2020/174427A1 |
The invention relates to a retaining or stopping pin, for piston rings of the piston, in particular to a pin specific for 2-stroke, high-performance engines, but it can also be applied on 4-stroke engines, as a retaining pin for the rota...
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WO/2020/170635A1 |
This method for manufacturing a piston includes: a mixed power preparation step of preparing a mixture including charcoal particles and aluminum alloy particles; and a sintering step of sintering the mixture onto a crown surface of a pis...
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WO/2020/162801A1 |
The present invention concerns an actuator apparatus (1) comprising a positioning actuator device (3) configured to position a first carrier member (5') of the actuator apparatus (1). The positioning actuator device (3) comprises a first...
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WO/2020/099001A1 |
A piston (10) of a cylinder of an internal combustion engine, with a piston skirt (12), with a ring belt (13) which is positioned on a first axial side of the piston skirt (12) and has a plurality of ring grooves (15) which are delimited...
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WO/2020/083885A1 |
The invention relates to a piston (100) for an internal combustion engine, comprising: two piston bosses (120) which are designed to receive a piston pin and have a substantially constant cross-section, wherein the piston is substantiall...
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WO/2020/053260A1 |
The invention relates to a piston (1), comprising two opposing gudgeon pin bores (2, 3), into which a gudgeon pin can be inserted, which can be axially secured in retaining grooves (4) in the gudgeon pin bores (2 and 3) by means of circl...
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WO/2020/043881A1 |
An internal combustion engine includes a crankcase, a crankshaft disposed at least in part in the crankcase, and acylinder block connected to the crankcase. A piston is movably disposed within acylinder of the cylinder block and isoperat...
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