F02B 33/20
With pumping-cylinder axis arranged at an angle to working-cylinder axis
Official title: with pumping-cylinder axis arranged at an angle to working-cylinder axis, e.g. at an angle of 90 degrees
F02B33/20 (With pumping-cylinder axis arranged at an angle to working-cylinder axis) appears on 35 US grants and 29 published applications in this corpus.
Search patents in F02B- Granted patents
- 35
- Published applications
- 29
- Assignees
- 17
- Inventors
- 42
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 4 |
| 2013 | 3 | 3 |
| 2014 | 3 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 4 |
| 2019 | 1 | 3 |
| 2020 | 3 | 2 |
| 2021 | 1 | 0 |
| 2022 | 3 | 3 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Air compressor cylinder liner8 Jul 2025US 12,352,264 B2Orbital Australia Pty Ltd
- Split-cycle internal combustion engine29 Aug 2023US 11,739,682 B2Fpt Industrial S.P.A.
- Internal combustion engine system7 Mar 2023US 11,598,248 B2Volvo Truck Corporation
- Internal combustion engine system6 Dec 2022US 11,519,305 B2Volvo Truck Corporation
- Six-cylinder opposed free piston internal combustion engine generator23 Aug 2022US 11,421,586 B2Harbin Engineering University
- Air compressor cylinder liner15 Aug 2024US 2024/0271616 A1Orbital Australia Pty Ltd
- Split-cycle internal combustion engine5 Jan 2023US 2023/0003165 A1Fpt Industrial S.P.A.
- Internal combustion engine system19 May 2022US 2022/0154604 A1Volvo Truck Corporation
- Internal combustion engine system19 May 2022US 2022/0154652 A1Volvo Truck Corporation
- Six-Cylinder Opposed Free Piston Internal Combustion Engine Generator21 Apr 2022US 2022/0120214 A1Harbin Engineering University
Most cited
By later US patents
- Dual compression and dual expansion engine51US 5,623,894 ACaterpillar Inc. · 1997
- Regenerative internal combustion engine45US 5,499,605 ASouthwest Research Institute · 1996
- Modified Ericsson cycle engine33US 4,133,172 AGeneral Motors Corporation · 1979
- Reciprocating piston engine with pumping and power cylinders30US 5,265,564 A1993
- Dual compression and dual expansion internal combustion engine and method therefor18US 5,456,219 ACaterpillar Inc. · 1995