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Document Title Proposal for amendments to Regulation No. 110
Reference Number GRSG-110-27
Date
29 Apr 2016
Summary Proposal to amend GRSG/2015/36 introducing requirements for the operation of a CNG heater when the vehicle is stationary and before starting the engine. The limitation on the number of valves used to operate the CNG combustion heater will require technical changes without any significant benefit. The proposal therefore deletes the limitation and introduces additional clarifications.
Source(s) Germany
Rulemaking Area(s) UN R110 CNG/LNG System Components
Proposal Status Superseded
Meeting(s)
Related Documents
WP.29/2016/95 Proposal for Supplement 5 to the 01 series of amendments to Regulation No. 110
Downloads
UNECE server .pdf format .docx format
Excerpts from session reports related to this document
GRSG | Session 110 | 25-29 Apr 2016

31. The expert from OICA recalled the discussion at the previous GRSG session on ECE/TRANS/WP.29/GRSG/2015/36 proposing to amend the provisions of UN Regulation No. 67 to allow the installation of autonomous CNG heaters for the heating of the engine. The expert from Germany presented GRSG-110-27 further clarifying the text of paragraph 18.5.1.3.

32. GRSG adopted the proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110.

Paragraph 18.5.1.3., amend to read:
“18.5.1.3. Notwithstanding the provisions of paragraph 18.5.1.2.
(a) the automatic cylinder valve may stay in an open position during commanded stop phases, and
(b) in the case where a fire alarm system is installed in the compartment where a CNG combustion heater is located, the automatic cylinder valve(s) may be opened by an electronic control unit for the purpose of permitting its operation to warm the engine coolant.