Driving system for machinery, such as a motor, compressor etc.

• US 6,442,935 B1
• Filed: 04/13/2001
• Issued: 09/03/2002
• Est. Priority Date: 08/14/1998
• Status: Expired due to Fees

• Current Assignee: 3D International
• Original Assignee: 3D International
• Inventors: Larsen, Thor
• Primary Examiner(s): Denion, Thomas
• Assistant Examiner(s): TRIEU, THAI BA
• Application Number:
  US09/762,792
• Time in Patent Office: 508 Days
• Field of Search: 605/18, 605/19, 418/51, 418/52, 418/53, 418/68, 418/49, 123/241
• US Class Current: 60/519
• CPC Class Codes: F01C 3/06 the axes being arranged otherwise than at an angle of 90 degrees
• CPC Class Codes: F01C 9/005 the piston oscillating in the space, e.g. around a fixed point rotary piston machines or engines with non-parallel axes of rotation between co-operating members F01C3/00

Abstract

A driving system (13) comprises a housing (10) having spherical hollow space (11), a rotatable main shaft (14), a driving means (16) and a piston construction (15). The piston construction (15) is rockable about a first rocking axis (15a) in a rectilinear motion backwards and forwards relative to a stationary wall portion (12). The driving means (16) is pivotally mounted in the main shaft (14) about a pivotable axis (16b) which forms an acute angle with the rotatable axis (14a) of the main shaft (14) and is rockably mounted in the piston construction (15) about a second rocking axis (16a), which extends at right angles to the first rocking axis (15a). The first and second rocking axis (15a, 16a) cross the rotational axis (14a) of the main shaft (14) at a common crossing point (11c) centrally in the spherical hollow space (11).

Claims

1. A Driving system (13) comprising a housing (10) having a spherical hollow space (11), a rotatable main shaft (14), a driving means (16) drivingly connected to the main shaft (14) and a piston construction (15) connected to the driving means (16), where the piston construction (15) is rockable backwards and forwards in the hollow space (11) relative to a stationary wall portion (12) in the hollow space (11) and where one end of the driving means (16), which participates in the rotational motion of the main shaft (14) is pivotally mounted in the main shaft (14) about a pivotal axis (16b) which forms an acute angle with the rotational axis (14a) of the main shaft (14), characterized in that

the piston construction (15), which comprises a pair of mutually rigidly connected pistons (15c,15d), is rockable relative to the surrounding housing (10)about a first rocking axis (15a), which centrally passes through the spherical hollow space (11) at right angles to the rotational axis (14a) of the main shaft (14),

that the piston construction (15) is rockable towards and from an intermediate, stationary wall portion (12), which projects radially inwards into a first hollow space section (11a) of the spherical hollow space (11) and divides the hollow space section (11a) into two opposite work chambers (11a′

11a″

),

that the other end of the driving means (16) is rockably mounted in the piston construction (15) about a second rocking axis (16a), which extends at right angles to the first rocking axis (15a),

the first and second rocking axes (15a,16a) crossing the rotational axis (14a) of the main shaft (14) at a common crossing point (11c) centrally in the spherical hollow space (11).

2. The Driving system in accordance with claim 1, characterised in that the work chambers (11a′

,11a″

) of the first hollow space section (11a) are defined between the rockable piston construction (15) a pair of stationary housing components (10a,10b) and the stationary partition wall (12).

3. The Driving system in accordance with claim 1 characterised in that the pistons (15c,15d) of the piston construction (15) constitute main pistons of the driving system (13), which form a part of the first hollow space section (11a), and that the driving means (16) constitutes an auxiliary piston, which forms a part of the second hollow space section (11b), the driving means (16) being disc-shaped and dividing the second hollow space section (11b) into two associated auxiliary chambers (11b′

,11b″

).

4. The Driving system in accordance with claim 3, characterised in that the second hollow space section (11b) is mainly formed by a rotatable housing member (14b), which is directly connected to the main shaft (14), the rotatable housing member (14b) including a rotary bearing for the associated guide pin (19) of the driving means (16).